Document:

<Page>
                      MASTER CONSTRUCTION AGENCY AGREEMENT

                            Dated as of May 22, 2001

                                     between

                      IRON MOUNTAIN STATUTORY TRUST - 2001,
                                    as Lessor

                                       and

                     IRON MOUNTAIN RECORDS MANAGEMENT, INC.,
                              as Construction Agent

<Page>

                                TABLE OF CONTENTS

<Table>
<Caption>
                                                                           PAGE

<S>          <C>                                                             <C>
Article 1    DEFINITIONS......................................................1

    1.1      Definitions; Interpretation......................................1

Article 2    APPOINTMENT AND DUTIES OF CONSTRUCTION AGENT.....................1

    2.1      Appointment......................................................1

    2.2      Construction Properties..........................................1

    2.3      Term.............................................................2

    2.4      Construction Documents...........................................2

    2.5      Scope of Authority...............................................2

    2.6      Covenants of the Construction Agent..............................3

    2.7      Insurance........................................................4

    2.8      Representations and Warranties of Construction Agent.............8

    2.9      Indemnification During Construction Period.......................8

Article 3    THE IMPROVEMENTS.................................................9

    3.1      Construction.....................................................9

    3.2      Amendments; Modifications........................................9

    3.3      Casualty and Condemnation.......................................10

    3.4      Cost Over-Runs..................................................10

Article 4    PAYMENT OF FUNDS................................................10

    4.1      Funding of Property Improvements Costs..........................10

Article 5    CONSTRUCTION AGENCY AGREEMENT EVENTS OF DEFAULT.................11

    5.1      Construction Agency Agreement Events of Default.................11

    5.2      Survival........................................................14

    5.3      Remedies Cumulative; Waivers....................................14

    5.4      Limitation on Recourse Liability................................14

Article 6    NO CONSTRUCTION AGENCY FEE......................................15

    6.1      Lease as Fulfillment of Lessor's Obligations....................15

Article 7    MISCELLANEOUS...................................................15

    7.1      Notices.........................................................15

    7.2      Successors and Assigns..........................................15

    7.3      GOVERNING LAW...................................................15

    7.4      Amendments, etc.................................................15

    7.5      Counterparts....................................................15

                                        i
<Page>

                                TABLE OF CONTENTS

    7.6      Severability....................................................15

    7.7      Headings and Table of Contents..................................16

    7.8      No Recourse.....................................................16

Annex I      Form of Construction Documents Assignment

Exhibit A    Form of Supplement to Master Construction Agency Agreement

Exhibit B    Acceptable Insurance Exclusions
</Table>

                                       ii
<Page>

                      MASTER CONSTRUCTION AGENCY AGREEMENT

     MASTER CONSTRUCTION  AGENCY AGREEMENT (this  "AGREEMENT"),  dated as of May
22,  2001,  is entered into between  IRON  MOUNTAIN  STATUTORY  TRUST -- 2001, a
Connecticut  statutory trust, as Lessor,  and IRON MOUNTAIN RECORDS  MANAGEMENT,
INC., a Delaware corporation, as Construction Agent.

                              W I T N E S S E T H:
                               - - - - - - - - - -

     WHEREAS,  the Lessor and the Construction Agent are parties to that
certain Master Lease and Security Agreement,  dated as of the date hereof (the
"LEASE"), pursuant  to which (i) the  Lessee has leased  from  Lessor,  and the
Lessor has leased to the  Lessee,  Lessor's  interest  in certain  Properties
and (ii) the Lessee and the Lessor may in the future agree to the financing,
development and lease of certain other Properties; and

     WHEREAS,  subject to the terms and  conditions  hereof and with  respect
to each Construction  Property,  (i) the Lessor desires to appoint the
Construction Agent as its sole and exclusive agent for the  construction of the
Improvements in accordance with the Plans and Specifications  for such
Construction  Property and the Lease and this Agreement and (ii) the
Construction  Agent desires,  for the  benefit of the  Lessor,  to cause the
Improvements  to be  constructed  in accordance with the Plans and
Specifications for such Construction  Property and the Lease and this Agreement;

     NOW, THEREFORE,  in consideration of the foregoing,  and for other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are
hereby acknowledged, the parties hereto agree as follows:

                                    ARTICLE 1

                                   DEFINITIONS

     1.1   DEFINITIONS;  INTERPRETATION.  Capitalized terms used but not
otherwise defined in this Agreement shall have the meanings specified in
APPENDIX 1 to the Lease,  and the rules of  interpretation  set forth in
APPENDIX  1 to the Lease shall apply to this Agreement.

                                    Article 2

                  APPOINTMENT AND DUTIES OF CONSTRUCTION AGENT

     2.1   APPOINTMENT.  Pursuant to and subject to the terms and  conditions
set forth herein and in the Lease and the other Operative Documents, with
respect to each  Construction  Property,  the  Lessor  hereby  irrevocably
designates  and appoints the  Construction  Agent as its exclusive agent for the
construction of the  Improvements  in  accordance  with the  Plans and
Specifications  for such Property,  and  the  Construction  Agent  hereby
unconditionally   accepts  the designation and appointment as Construction
Agent.

     2.2   CONSTRUCTION  PROPERTIES.  Each Construction Property will be
subjected to the terms of this Agreement  upon the execution and delivery of a
Construction  Agency Agreement  Supplement on the Acquisition Date
therefor.

<Page>

     2.3   TERM.  This  Agreement  shall  commence  on the date  hereof  and
shall terminate:

           (a)    as to any particular Construction Property, upon the first to
occur of:

                  (i)  the  completion  of  the  Construction  of  such
Property, including completion of punch list items referred to in
SECTION 2.6(g);

                 (ii) payment by the Lessee of the Lease  Balance for such
Property and the expiration of the Lease Term for such Property in accordance
with the terms and conditions of the Lease;

                (iii) a Significant Casualty or a Significant  Condemnation with
respect to such Property as provided in SECTION 19.3 of the Lease; and

           (b) in its entirety, upon termination of this Agreement pursuant to
ARTICLE V.

     2.4   CONSTRUCTION  DOCUMENTS.  The Construction  Agent shall enter into
such agreements  with  architects  and  contractors as the  Construction  Agent
deems necessary or desirable for the completion of the  Construction  pursuant
hereto (the "CONSTRUCTION  DOCUMENTS");  PROVIDED,  HOWEVER,  that no such
Construction Document  shall limit or reduce in any way the  Construction
Agent's duties and obligations  under this  Agreement.  Contemporaneously
with the  execution  and delivery of the  Construction  Agency  Agreement
Supplement  for a Construction Property,  the  Construction  Agent will  execute
and deliver to the Lessor the Construction Documents Assignment.

     2.5   SCOPE OF AUTHORITY.

           (a)  Subject to the terms,  conditions,  restrictions  and
limitations set forth in the Operative Documents with respect to each
Construction Property, the Lessor hereby  expressly  authorizes  the
Construction  Agent,  or any agent or contractor of the Construction Agent,
and the Construction Agent unconditionally agrees, for the benefit of the
Lessor, to take all action necessary or desirable for  the  performance  and
satisfaction  of  all of the  Construction  Agent's obligations hereunder,
including:

                (i)  identify and assist with the  acquisition  of related
Improvements  in accordance  with the  terms  and  conditions  of the  Lease
and the  Plans  and Specifications for such Property;

                (ii) perform or cause to be performed all design and supervisory
functions and  all  engineering  work  related  to the  Construction  to be
performed  in connection with such Property;

                (iii)negotiate and enter into all contracts or arrangements to
procure the equipment  necessary to construct the  Improvements  to be
constructed  on such Property on such terms and  conditions as are customary and
reasonable in light of local standards and practices;

                (iv) obtain  or cause to be  obtained  all  necessary  permits,
licenses, consents,  approvals and other  authorizations,  including  those
required under Applicable  Law,  from  all  Governmental  Authorities  in
connection  with the Construction  to be  performed  in  connection  with such
Property and grant on behalf of the Lessor such  easements as are necessary or
appropriate  to effect such  Construction  or that  otherwise  would not have an
adverse  effect on the value of any Property;

                                       2
<Page>

                (v)  maintain all books and records with respect to the
Construction to be performed in connection with such Property; and

                (vi) perform  all of its  obligations  under  the  Construction
Documents relating to such Property and any other acts  necessary in  connection
with the acquisition  of  such  Property  and the  construction  and
development  of the Improvements in accordance with the Plans and Specifications
for such Property.

         (b)  Subject to the terms of this Agreement and the other Operative
Documents, the Construction Agent may execute any of its duties under this
Agreement by or through agents, contractors, subcontractors, employees or
attorneys-in-fact.

         (c)  Subject to the terms and  conditions  of this  Agreement  and the
other Operative  Documents,  the  Construction  Agent  shall  have sole and
exclusive management  and control over the  construction  means,  methods,
sequences  and procedures  with respect to the  Construction to be performed in
connection with such Property.

         (d)  Neither the  Construction  Agent nor any of its  Affiliates  or
agents shall enter into any contract which would,  directly or  indirectly,
impose any liability or  obligation  on the Lessor  arising out of the Lessee's
actions or failures to act for which the Lessor is not  indemnified by the
Lessee under the Lease or any of the other Operative Documents.

     2.6   COVENANTS OF THE  CONSTRUCTION  AGENT.  The  Construction  Agent
hereby covenants and agrees that it will,  with respect to each  Construction
Property subject to this Agreement:

           (a) promptly  commence the  Construction  of such  Property
following the Acquisition Date therefor and prosecute the Construction
diligently and without interruption  (subject only to delays caused by Force
Majeure Events) in accordance with the Plans and Specifications,  the other
Construction  Documents and all Requirements of Law and Insurance Requirements;

           (b) notify the Lessor in writing not less than five (5) Business Days
after the occurrence of each Force Majeure Event;

           (c) use its best efforts to minimize the disruption of and delays to
the construction process arising from Force Majeure Events;

           (d) comply with all Applicable Law (including Environmental Laws)
relating to such Property during Construction of the Improvements;

           (e) obtain, maintain and comply with the terms of all Governmental
Actions required for the Construction of the Improvements;

           (f) cause all Liens (including, without limitation, Liens or claims
for materials supplied or labor or services performed in connection with the
construction of the Improvements), other than Permitted Liens, to be discharged;

           (g) following the Substantial Completion of the Construction of such
Property, cause all outstanding punch list items with respect to such
Construction to be completed diligently and as promptly as practicable after the
date of Substantial Completion and, in any case, before the exercise of the
Remarketing Option for such Property;

                                       3
<Page>

           (h) use its best efforts to minimize or avoid damage or destruction
to the Improvements, prevent loss or deterioration to the materials stored at
the project site, and prevent injury to third Persons or property of third
Persons;

           (i) enter into an EPC Construction Contract or GC Construction
Contracts, as the case may be, for such Property which conform to the
requirements of the Lease and furnish true and correct copies thereof to the
Lessor at or before the time required by the Lease;

           (j) prepare or cause to be prepared and furnish to the Lessor at or
before the time required by the Lease true and correct copies of the Plans and
Specification and the Budget for such Property; and

           (k) not amend the Construction Documents (including the EPC
Construction Contract or the GC Construction Contract, as the case may be), the
Plans and Specifications or the Budget for such Property except as permitted by
SECTION 3.2.

     2.7   INSURANCE.

           (a) INSURANCE BY THE CONSTRUCTION AGENT. The Construction Agent shall
procure and maintain in full force and effect for each Construction Property
during the Construction Period for such Construction Property insurance policies
with insurance companies having a Best Insurance Reports rating of "A-" or
better and a financial size category of "IX" or higher at the time of policy
issuance with limits and coverage provisions as set forth below.

     GENERAL  LIABILITY  INSURANCE.  Liability  insurance on an occurrence basis
against  claims filed anywhere in the United States and occurring in anywhere
in the United States for the Construction  Agent's and Lessor's  liability
arising out of claims  for  personal  injury  (including  bodily  injury  and
death) and property damage.  Such insurance shall provide  coverage for
products/completed operations, blanket contractual, broad form property damage,
personal injury and independent  contractors,  with a $10,000,000  minimum
limit per  occurrence for combined bodily injury and property damage. A maximum
deductible or self-insured retention  of  $25,000  per  occurrence  shall be
allowed  with  respect to each Property.

     BUILDER'S RISK INSURANCE.  Property damage insurance on an "all risk" basis
insuring the Construction Agent the Lessor and the Construction  Agent, as
their interests may appear,  including coverage against loss or damage from the
perils of earth  movement  (including  earthquake,  landslide,  subsidence
and volcanic eruption),  flood,  and boiler and machinery  accidents,  and not
containing any exclusions other than those listed on EXHIBIT B.

                (i)  PROPERTY COVERED. The builder's risk policy shall provide
     coverage for (A) the buildings, structures, machinery, equipment,
     facilities, fixtures, supplies and other properties constituting a part of
     the Improvements, (B) property of others in the care, custody or control of
     the Construction Agent in connection with such Property, (C) all
     preliminary works, temporary works and interconnection works and (D)
     foundations and other property below the surface of the ground.

                (ii) ADDITIONAL COVERAGES. The builder's risk policy shall
     insure (A) the cost of preventive measures to reduce or prevent a loss in
     an amount not less than $2,000,000, (B) inland transit with sub-limits
     sufficient to insure the largest single shipment to or from any Property
     site from anywhere within North America, (C) attorney's fees, engineering
     and other consulting costs, and permit fees directly incurred in order to
     repair or replace damaged insured

                                       4
<Page>

     property in a minimum amount of $1,000,000, (D) expediting expenses
     (defined as extraordinary expenses incurred after an insured loss to make
     temporary repairs and expedite the permanent repair of the damaged property
     including the delayed startup coverage even if such expenses do not reduce
     the delayed startup loss) in an amount not less than $1,000,000, (E)
     off-site storage with sub-limits sufficient to insure the full replacement
     value of any property or equipment not stored on the Property site and in
     any event not less than the lower of $2,500,000 and 25% of the Maximum
     Lease Balance for such Property, (F) the removal of debris with a sub-limit
     not less than $1,000,000 and (G) pollution clean up and removal for a
     sub-limit not less than $50,000.

                (iii) SPECIAL CLAUSES. The builder's risk policy shall include
     (A) a 72 hour clause in the case of storms and no such limit in the case of
     flood and earthquake, (B) unintentional errors and omissions clause, (C) a
     requirement that the insurer pay losses within thirty (30) days after
     receipt of an acceptable proof or loss or partial proof of loss, (D) an
     other insurance clause making this insurance primary over any other
     insurance and (E) a clause stating that the policy shall not be subject to
     cancellation by the insurer without thirty (30) days written notice to the
     named insured and each additional insured (or ten (10) days notice, in the
     case of non-payment of premium).

                (iv) PROHIBITED EXCLUSIONS. The builder's risk policy shall not
     contain any (A) coinsurance provisions, (B) exclusion for loss or damage
     resulting from freezing or mechanical breakdown, (C) exclusion for loss or
     damage covered under any guarantee or warranty arising out of an insured
     peril or (D) exclusion for resultant damage caused by ordinary wear and
     tear, gradual deterioration, normal subsidence, settling, cracking,
     expansion or contraction, or faulty workmanship, design or materials.

                (v) SUM INSURED. The builder's risk policy shall (A) be on a
     completed value form, with no periodic reporting requirements, (B) insure
     100% of the completed insurable value of the Improvements, (C) value losses
     at replacement cost, without deduction for physical depreciation or
     obsolesce and (D) insure loss or damage from earth movement and flood with
     respect to each Property in an amount of not less than the Maximum Lease
     Balance for such Property minus the Land Acquisition Cost for such
     Property.

                (vi) DEDUCTIBLE. The builder's risk policy shall have no
     deductible greater than $25,000 per occurrence.

                (vii) DELAYED STARTUP INSURANCE. Delayed startup coverage
     insuring the Construction Agent the Lessor, as their interests may appear,
     covering all of the Lessor's costs and expenses (including ground rent, all
     Impositions and all Capitalized Interest and Capitalized Commitment Fees)
     incurred as a result of loss or damage insured by the builder's risk
     insurance resulting in a delay in completion of the Improvements beyond
     their anticipated date of completion. Such insurance shall (A) have a
     deductible of not greater than fifteen (15) days in the aggregate for all
     occurrences during the Construction Period with respect to each
     Construction Property, (B) have an indemnity period of not less than six
     (6) months, (C) include an interim payments clause allowing for the
     periodic payment of a claim pending final determination of the full claim
     amount, (D) cover loss sustained when access to any Construction Property
     site is prevented due to an insured peril at premises in the vicinity of
     such Property site, (E) cover loss sustained due to the action of a public
     authority preventing access to any Construction Property site due to
     imminent or actual loss or destruction arising from an insured peril at
     premises in the vicinity of such Property site, (F) not contain any form of
     a coinsurance provision or include a waiver of such provision and (G) cover
     loss sustained due to the accidental interruption or failure, caused by an
     insured peril, of supplies of electricity, gas, sewers, water or

                                       5
<Page>

telecommunication up to the terminal point of any utility supplier with
respect to any Construction Property site.

                (viii)   ENDORSEMENTS. All policies of liability insurance
     required to be maintained by the Construction Agent shall be endorsed
     as follows:

                     (A) To name the Lessor, the Trustee, FUNB (as defined in
                the Trust Agreement),  the Collateral Agent, the  Administrative
                Agent, the Lenders and the Equity Participants as additional
                insureds;

                     (B) To provide a severability of interests and cross
                liability clause except with respect to limits and deductibles;

                     (C) That the insurance shall be primary and not excess to
                or contributing with any insurance or self-insurance maintained
                by the Lessor.

                (ix) WAIVER OF SUBROGATION. The Construction Agent hereby waives
     any and every claim for recovery from the Lessor for any and all loss or
     damage covered by any of the insurance policies to be maintained under this
     Agreement to the extent that such loss or damage is recovered under any
     such policy. If the foregoing waiver will preclude the assignment of any
     such claim to the extent of such recovery, by subrogation (or otherwise),
     to an insurance company (or other person), the Construction Agent shall
     give written notice of the terms of such waiver to each insurance company
     has issued, or which may issue in the future, any such policy of insurance
     (if such notice is required by the insurance policy) and shall cause each
     such insurance policy to be properly endorsed by the issuer thereof to, or
     to otherwise contain one or more provisions that, prevent the invalidation
     of the insurance coverage provided thereby by reason of such waiver.

           (b) CONDITIONS.

                (i) ADJUSTMENT OF LOSSES. Losses, if any, with respect to any
     Improvements under any property damage policies required to be carried
     under this Agreement shall be adjusted with the insurance companies,
     including the filing of appropriate proceedings, as follows: (x) so long as
     no Construction Agency Agreement Event of Default shall have occurred and
     be continuing, and provided that the Construction Agent is required by the
     Operative Documents, or has agreed, to repair the damage to the relevant
     Construction Property, such losses shall be adjusted by the Construction
     Agent with the consent of the Lessor, and (y) if any Construction Agency
     Agreement Event of Default shall have occurred and be continuing, or if the
     Construction Agent is not required to, and has not agreed, to repair the
     damage to the relevant Construction Property, such losses shall be adjusted
     solely by the Lessor. The party which shall be entitled to adjust losses
     may appear in any proceeding or action to negotiate, prosecute, adjust or
     appeal any claim for any award, compensation or insurance payment and shall
     pay all expenses thereof. At such party's reasonable request, and at the
     Construction Agent's sole cost and expense, the Construction Agent, and the
     Lessor, as the case may be, shall participate in any such proceeding,
     action, negotiation, prosecution or adjustment. The parties hereto agree
     that this Agreement shall control the rights of the parties hereto in and
     to any such award, compensation or insurance payment affecting the relevant
     Construction Property during the Construction Period with respect thereto.

                (ii) APPLICATION OF INSURANCE PROCEEDS. All proceeds of
     insurance maintained pursuant to this SECTION 2.7 on account of any damage
     to or destruction of the Improvements or any part thereof shall be paid
     over to the Collateral Agent; PROVIDED that, except

                                       6
<Page>

                in the case of a Significant Casualty, if no Construction Agency
     Agreement Event of Default shall have occurred, such funds shall be held by
     the Collateral Agent in a segregated account and disbursed to the
     Construction Agent to effect the repair of such Property.

                (iii) ADDITIONAL INSURANCE. Any additional insurance obtained by
     the Construction Agent or the Lessor shall provide that it shall not
     interfere with or in any way limit the insurance described this SECTION 2.7
     or increase the amount of any premium payable with respect to any insurance
     described herein. The proceeds of any such additional insurance will be for
     the account of the party maintaining such additional insurance.

                (iv) CAPITALIZED PREMIUMS. All premiums and other costs and
     fees that are due and payable with respect to the insurance required
     hereunder shall be specifically itemized in the Budget prepared by the
     Construction Agent for each Construction Property and shall be paid from
     Fundings and capitalized and included in the Lease Balance for the
     Construction Property to which the required coverage applies.

                (v)  POLICY CANCELLATION AND CHANGE. All policies of insurance
     required to be maintained pursuant to this SECTION 2.7 shall be endorsed so
     that if at any time they are canceled, or their coverage is materially
     reduced (by any party including the insured) so as to affect the interests
     of the Lessor or the Collateral Agent, such cancellation or material
     reduction shall not be effective as to the Lessor and the Collateral Agent
     for sixty (60) days, except for non-payment of premium which shall be for
     ten (10) days, after receipt by the Lessor and the Collateral Agent of
     written notice from such insurer of such cancellation or reduction.

                (vi) MISCELLANEOUS POLICY PROVISIONS. All property damage and
     delayed startup insurance policies (A) shall not include any annual or term
     aggregate limits of liability or clause requiring the payment of additional
     premium to reinstate the limits after loss except for insurance covering
     the perils of flood and earth movement, (B) shall include the Lessor and
     the Collateral Agent as named insureds as their interests may appear, and
     (C) shall include a clause requiring the insurer to make final payment on
     any claim within thirty (30) days after the submission of proof of loss and
     its acceptance by the insurer.

                (vii)  SEPARATION OF INTERESTS. The builders risk policy shall
     insure the interests of the Lessor regardless of any breach or violation by
     the Construction Agent or any other Person of warranties, declarations or
     conditions contained in such policy or any act or omission or negligence of
     the Construction Agent or others.

                (viii)  ACCEPTABLE POLICY TERMS AND CONDITIONS. All policies of
     insurance required to be maintained pursuant to this SECTION 2.7 shall
     contain terms and conditions reasonably acceptable to the Lessor and the
     Administrative Agent.

                (ix)   WAIVER OF SUBROGATION. All policies of insurance to be
     maintained by the provisions of this SECTION 2.7 shall provide for waivers
     of subrogation in favor of the Lessor.

         (c)  EVIDENCE OF INSURANCE. On or before the Acquisition Date
with respect to each Construction Property and on an annual basis at least ten
(10) days prior to each policy anniversary, the Construction Agent shall furnish
the Lessor and the Administrative Agent with certificates of insurance or
binders, in a form acceptable to the Lessor and the Administrative Agent,
evidencing all of the insurance required by the provisions of this SECTION 2.7.
Such certificates of insurance/binders shall be executed by each insurer or by
an authorized representative of each insurer where it is not practical for such
insurer to execute the certificate itself. Such certificates of
insurance/binders shall identify underwriters, the type of

                                       7
<Page>

insurance, the insurance limits and the policy term and shall specifically list
the special provisions enumerated for such insurance required by this SECTION
2.7. Upon request, the Construction Agent will promptly furnish the Lessor and
the Administrative Agent with copies of all insurance policies, binders and
cover notes or other evidence of such insurance relating to the insurance
required to be maintained by the Construction Agent.

         (d)  REPORTS. Upon request of the Lessor, the Construction Agent shall
furnish the Lessor and the Administrative Agent with a certificate signed by a
representative of the risk management group of the Construction Agent stating
that the insurance then carried is in accordance with the terms of this SECTION
2.7. In addition, the Construction Agent will advise the Lessor and the
Administrative Agent in writing promptly of any default in the payment of any
premium and of any other act or omission on the part of the Construction Agent
which may invalidate or render unenforceable, in whole or in part, any insurance
being maintained by the Construction Agent pursuant to this SECTION 2.7.

         (e)  FAILURE TO MAINTAIN INSURANCE. In the event the Construction Agent
fails to take out or maintain the full insurance coverage required by this
SECTION 2.7, the Lessor, upon thirty (30) days' prior notice (unless the
aforementioned insurance would lapse within such period, in which event notice
should be given as soon as reasonably possible) to the Construction Agent of any
such failure, may (but shall not be obligated to) take out the required policies
of insurance and pay the premiums on the same. All amounts so advanced thereof
by the Lessor shall be deemed to be a Funding and shall be capitalized in the
Lease Balance of the relevant Construction Property.

         (f)  NO DUTY OF LESSOR TO VERIFY OR REVIEW. No provision of this
SECTION 2.7 or any provision of this Agreement shall impose on the Lessor, the
Collateral Agent or any other Person any duty or obligation to verify the
existence or adequacy of the insurance coverage maintained by the Construction
Agent, nor shall the Lessor or the Collateral Agent be responsible for any
representations or warranties made by or on behalf of the Construction Agent to
any insurance company or underwriter. Any failure on the part of the Lessor or
the Collateral Agent to pursue or obtain the evidence of insurance required by
this Agreement from the Construction Agent and/or failure of the Lessor or the
Collateral Agent to point out any non-compliance of such evidence of insurance
shall not constitute a waiver of any of the insurance requirements in this
Agreement.

     2.8   REPRESENTATIONS  AND WARRANTIES OF CONSTRUCTION  AGENT.  The
Construction  Agent hereby  represents and warrants to the Lessor as follows:

           (a) LEGAL DESCRIPTION OF LAND. Set forth on SCHEDULE I to each
Construction Agency Agreement Supplement is a true and correct description of
the Land with respect to the Construction Property described on such
Construction Agency Agreement Supplement.

           (b) BUDGET. The Budget for each Construction Property, as
amended from time to time in accordance with this Agreement, will (i) be
prepared with due care in accordance with prudent business practices and (ii)
show all costs and expenses that could reasonably be expected to be incurred to
effect the acquisition of the Land and the Construction of the Improvements
thereon (including contingencies, all ground rent payable during the
Construction Period under any Ground Lease, all Impositions in respect of the
Land and Improvements, all Transaction Expenses attributable to such Property
and all financing costs and premiums in respect of the required property damage
insurance coverage to be capitalized during the Construction Period for such
Property).

     2.9   INDEMNIFICATION DURING CONSTRUCTION PERIOD. The Lessee will
indemnify, protect, defend, save and hold harmless each Indemnitee pursuant to
ARTICLE XXVII of the Lease for all Claims and Impositions relating to any
Construction Property; PROVIDED, HOWEVER, that, notwithstanding anything to

                                       8
<Page>

the contrary in this Agreement or the other Operative Documents, during the
Construction Period for any Construction Property, the Lessee shall only be
required to indemnify, protect, defend, save and hold harmless such Indemnitee
pursuant to SECTION 27.1 and 27.3 of the Lease for Claims and Impositions
relating to a Construction Property to the extent such Claims or Impositions are
caused directly or indirectly by, or result directly or indirectly from, the
Construction Agent's actions or failure to act while in possession or control of
such Property. As used in this SECTION 2.9, "the Construction Agent's actions or
failure to act while in possession or control of such Property" includes any
action or failure to act on the part of the EPC Contractor, any other
subcontractors of the Construction Agent or any other Person permitted by the
Construction Agent to enter upon such property and, for purposes of this SECTION
2.9 the Construction Agent shall be deemed to be in possession and control of
such Property until the Lease Commencement Date for such Property.

                                    ARTICLE 3

                                THE IMPROVEMENTS

     3.1   CONSTRUCTION. The Construction Agent will cause the Improvements
located on each Construction Property to be constructed in accordance with the
Plans and Specifications for such Property, in compliance with all Requirements
of Law and Insurance Requirements, and otherwise in compliance with the
requirements of this Agreement, the Lease and the other Operative Documents.
The Construction Agent agrees that the Lease Balance with respect to any
Construction Property shall not exceed the Maximum Lease Balance
with respect to such Property.

     3.2   AMENDMENTS; MODIFICATIONS. The Construction Agent may, subject to the
conditions, restrictions and limitations set forth herein and in the other
Operative Documents, at any time during the term hereof revise, amend
or modify the Plans and Specifications, the Budget and/or the Construction
Documents in respect of any Construction Property without the consent of the
Lessor; PROVIDED that:

          (a)  the Lessor's prior written consent will be required (except
to the extent that such revision, amendment or modification constitutes a
Required Modification) if (i) such revision, amendment or modification would
result in the Substantial Completion of the Construction of such Property
occurring after the Outside Completion Date for such Property, (ii) the
aggregate effect of such revision, amendment or modification, when taken
together with any previous or contemporaneous revisions, amendments or
modifications, would be to reduce the Fair Market Sales Value of such Property
upon completion of the Construction of such Property or (iii) such revision,
amendment or modification would materially change the suitability of the
Improvements for such Property for the purposes contemplated by the Lease;

          (b)  the Construction Agent shall not terminate any Construction
Document, or modify any provision of any Construction Document requiring
retainage, construction bonds, set completion dates or fixed or guaranteed
maximum prices, without the prior written consent of the Lessor;

          (c)  the Construction Agent shall promptly furnish to the Lessor
copies of all revisions, amendments and modifications to the Plans and
Specifications, the Budget, the EPC Construction Contract or the GC Construction
Contracts and, if requested by the Lessor, all other revisions, amendments and
modifications to any of the other Construction Documents;

          (d)  if such revision, amendment or modification results in a
change to any item of the Budget, the Construction Agent shall prepare and
deliver an amended Budget showing all Estimated Improvement Costs (after giving
effect to such revision, amendment or modification); and

                                       9
<Page>

          (e)  the Lessor may not in any event revise, amend or modify the
Budget for any Construction Property to increase the total amount thereof to an
amount in excess of the Maximum Lease Balance for such Property.

     3.3   CASUALTY AND CONDEMNATION. If, with respect to any Construction
Property at any time prior to the Lease Commencement Date for such
Property, there occurs a Casualty or the Lessor or the Construction Agent
receives notice of a Condemnation, then, except as otherwise provided in ARTICLE
XIX of the Lease, in each case this Agreement shall continue in effect with
respect to such Property and the proceeds of any insurance received as a result
of such Casualty shall be made available to the Construction Agent as provided
in SECTION 2.7(B)(II).

     3.4   COST OVER-RUNS. In the event that the Lease Balance for any
Construction Property would exceed the Maximum Lease Balance for such Property,
the Lessor and the Lessee may agree to increase the Maximum Lease Balance for
such Property (and, if necessary, the Total Commitment) upon mutually acceptable
terms, PROVIDED that neither party shall have any obligation to agree to any
increase proposed by the other party.

                                    ARTICLE 4

                                PAYMENT OF FUNDS

     4.1   FUNDING OF PROPERTY IMPROVEMENTS COSTS.

          (a)  In connection with and during the course of the construction of
the Improvements, the Construction Agent may request that the Lessor advance
funds for the payment of Land Acquisition Costs and Property Improvements
Costs in respect of each Construction Property subject hereto, and the Lessor
will comply with such request to the extent of the Lessor's commitment provided
for under the Lease. The Construction Agent and the Lessor acknowledge and agree
that the Lessee's right to request funds and the Lessor's obligation to advance
funds for the payment of Land Acquisition Costs and Property Improvements Costs
for such Property is subject in all respects to the terms and conditions of the
Lease and each of the other Operative Documents.

          (b)  The proceeds of any funds made available to the Lessor to
pay Land Acquisition Costs and Property Improvements Costs for any Construction
Property shall be made available to the Construction Agent in accordance with
the Funding Request relating thereto, the terms of the Lease and, if applicable,
a disbursing agreement entered into between the Construction Agent, the Title
Company, the Lessee and the Lessor. The Construction Agent will use such
proceeds only to pay the Land Acquisition Costs and Property Improvements Costs
set forth in such Funding Request and only in accordance with the current Budget
for such Construction Property.

          (c)  The Construction Agent shall at all times cause to be and
remain vested in the Lessor's control any and all construction materials and
equipment not yet incorporated into any Construction Property for which funds
shall have been requested pursuant to this ARTICLE IV, and cause such title to
be and remain free of all Liens other than Permitted Liens.

          (d)  Notwithstanding anything to the contrary in this Agreement
or any other Operative Document, the Construction Agent shall not be required to
use its own funds (i) to repair or restore the effect of any Force Majeure
Event, Casualty or Condemnation during the Construction Period for any
Construction Property or (ii) to pay the cost of completing the Construction for
any Construction Property if the Lease Balance for such Property would exceed
the Maximum Lease Balance for such Property. During the Construction Period for
any Construction Property, (i) all charges and costs for

                                       10
<Page>

utilities and services, (ii) all Impositions (except for those Impositions for
which the Construction Agent is obligated to reimburse an Indemnitee pursuant to
SECTION 2.9) and (iii) all amounts payable under SECTION 32.3, 32.4 or 32.5 of
the Lease, in each case to the extent relating or allocable to such Property or
the Construction of the Improvements thereon, shall be paid by the Construction
Agent (or the Construction Agent shall be reimbursed therefor) from the
proceeds of Fundings.

                                    ARTICLE 5

                 CONSTRUCTION AGENCY AGREEMENT EVENTS OF DEFAULT

     5.1   CONSTRUCTION AGENCY AGREEMENT EVENTS OF DEFAULT. If any one or more
of the following events (each a "CONSTRUCTION AGENCY AGREEMENT EVENT OF
DEFAULT") shall occur:

          (a)  APPLICATION OF FUNDS. the Construction Agent fails to apply
any funds paid by the Lessor to the Construction Agent to the payment of the
appropriate Land Acquisition Costs and Property Improvements Costs; or

          (b)  SUBSTANTIAL COMPLETION. the Construction Agent shall fail to
cause the Substantial Completion of all Improvements for any Construction
Property on or before the Outside Completion Date for such Property; or

          (c)  PAYMENT. the Construction Agent shall fail to make payment
of (i) any Lease Balance or Construction Period Guaranteed Amount when due or
(ii) any other amount payable hereunder when due and such other amount shall not
be paid in full within three (3) Business Days after the due date therefor; or

          (d)  INSURANCE. the Construction Agent shall fail to maintain
insurance as required by SECTION 2.7; or

          (e)  OTHER COVENANTS. the Construction Agent shall fail to
observe or perform any term, covenant or condition of the Construction Agent
under this Agreement other than those described in SECTIONS 5.1(a) through (d)
hereof and, in each such case, such failure shall have continued for thirty (30)
days after the earlier of (i) delivery to the Construction Agent of written
notice thereof from the Lessor or (ii) a Responsible Employee of the
Construction Agent shall have knowledge that such failure, if not cured, will
constitute a Construction Agency Agreement Event of Default, PROVIDED, that no
Construction Agency Agreement Event of Default shall be deemed to occur if such
failure or breach cannot reasonably be cured within such period, so long as the
Construction Agent shall have promptly commenced the cure thereof and continues
to act with diligence to cure such failure or breach and in fact cures such
failure or breach within one hundred twenty (120) days; or

          (f)  IMPROVEMENTS. the Construction Agent shall cause or permit the
Improvements for any Construction Property to be constructed and equipped in a
manner which (i) violates in any material respect any Applicable Law or (ii)
deviates in any material respect from the Plans and Specifications for such
Property, and said violation remains uncured for a period of thirty (30) days
after the earlier of (i) delivery to the Construction Agent of written notice
thereof from the Lessor or (ii) a Responsible Employee of the Construction Agent
shall have knowledge that such failure, if not cured, will constitute a
Construction Agency Agreement Event of Default, PROVIDED, that no Construction
Agency Agreement Event of Default shall be deemed to occur if such failure or
breach cannot reasonably be cured within such period, so long as the
Construction Agent shall have promptly commenced the cure thereof and continues
to act with diligence to cure such failure or breach and in fact cures such
failure or breach within one hundred twenty (120) days; or

                                      11
<Page>

          (g)  REPRESENTATIONS AND WARRANTIES OF CONSTRUCTION AGENT. any
representation or warranty made by the Construction Agent in any Operative
Document to which it is a party or in any certificate or other document
delivered pursuant thereto shall prove to have been inaccurate in any material
respect at the time made or shall be breached in any material respect; or

          (h)  REPRESENTATIONS AND WARRANTIES OF GUARANTOR.any representation or
warranty made by the Guarantor in any Operative Document to which it is a party
or in any certificate or other document delivered pursuant thereto shall prove
to have been inaccurate in any material respect at the time made or shall be
breached in any material respect; or

          (i)  MAXIMUM LEASE BALANCE. if the Lease Balance for any Construction
Property at any time plus the Construction Agent's good faith estimate at such
time of the aggregate additional amount to be expended to achieve Substantial
Completion with respect to the Improvements for such Property (including
Capitalized Interest, Capitalized Commitment Fees, Transaction Expenses and all
other amounts to be capitalized for such Property) shall exceed the Maximum
Lease Balance for such Property (excluding any such excess resulting from an
amendment or change order to the Plans and Specifications and other Construction
Documents expressly and specifically agreed to by the Lessor); or

          (j)  CROSS-DEFAULT. the Construction Agent, the Guarantor or any
Subsidiary of the Guarantor (other than any Foreign Subsidiary Borrower) shall
default in the payment when due of any principal of or interest on any
Indebtedness having an aggregate outstanding principal amount of at least
$5,000,000; or any event or condition shall occur which results in the
acceleration of the maturity of any such Indebtedness of the Construction Agent,
the Guarantor or any Subsidiary of the Guarantor (other than any Foreign
Subsidiary Borrower) or enables (or, with the giving of notice or lapse of time
or both, would enable) the holder of any such Indebtedness or any Person acting
on such holder's behalf to accelerate the maturity thereof; or

          (k)  VOLUNTARY PROCEEDINGS. the Construction Agent or the Guarantor
shall commence a voluntary case or other proceeding seeking liquidation,
reorganization or other relief with respect to itself or its debts under any
bankruptcy, insolvency or other similar law now or hereafter in effect or
seeking the appointment of a trustee, receiver, liquidator, custodian or other
similar official of it or any substantial part of its property, or shall consent
to any such relief or to the appointment of or taking possession by any such
official in an involuntary case or other proceeding commenced against it, or
shall make a general assignment for the benefit of creditors, or shall fail
generally to pay its debts as they become due, or shall take any corporate
action to authorize any of the foregoing; or

          (l)  INVOLUNTARY PROCEEDINGS. an involuntary case or other proceeding
shall be commenced against the Construction Agent or the Guarantor seeking
liquidation, reorganization or other relief with respect to it or its debts
under any bankruptcy, insolvency or other similar law now or hereafter in effect
or seeking the appointment of a trustee, receiver, liquidator, custodian or
other similar official of it or any substantial part of its property, and such
involuntary case or other proceeding shall remain undismissed and unstayed for a
period of sixty (60) days; or an order for relief shall be entered against the
Construction Agent or the Guarantor under the federal bankruptcy laws as now or
hereafter in effect; or

          (m)  JUDGMENTS. (i) one or more judgments, orders, decrees or
arbitration awards requiring Construction Agent or Guarantor to pay an aggregate
amount of $5,000,000 or more (exclusive of amounts covered by insurance issued
by an insurer not an Affiliate of Guarantor) shall be rendered against
Construction Agent or Guarantor in connection with any single or related series
of transactions, incidents or circumstances and the same shall not be satisfied,
vacated or stayed for a period of sixty (60) consecutive days; or (ii) any
judgment, writ, assessment, warrant of attachment, tax lien or execution or
similar process shall be issued or levied against a substantial part of the
property of the Construction

                                       12
<Page>

Agent or Guarantor and the same shall not be released, stayed, vacated, or
otherwise dismissed within sixty (60) days after issue or levy; or

          (n) GUARANTY. an Event of Default (as defined therein) shall occur the
Guaranty; or

          (o)  REPUDIATION; INVALIDITY. the Construction Agent or the Guarantor
shall directly or indirectly contest the validity of this Agreement or the
Guaranty in any manner in any court of competent jurisdiction, or shall
repudiate, or purport to discontinue or terminate, this Agreement or the
Guaranty or this Agreement or the Guaranty shall cease to be a legal, valid and
binding obligation of the Construction Agent or the Guarantor or shall cease to
be in full force and effect against the Construction Agent or the Guarantor for
any reason (and in the event this Agreement or the Guaranty shall so cease to be
a legal, valid and binding obligation of the Construction Agent or the Guarantor
or cease to be in full force and effect against the Construction Agent or the
Guarantor, the Construction Agent or Guarantor, as the case may be, shall not
have taken all such actions necessary or desirable (in the reasonable opinion of
the Lessor and the Administrative agent and its counsel) to put the Lessor, the
Administrative Agent, the Collateral Agent, the Equity Participants and the
Lenders in the same position they would have enjoyed had this Agreement or the
Guaranty not ceased to be a legal, valid and binding obligation of the
Construction Agent or the Guarantor or ceased to be in full force and effect);
or

          (p) OWNERSHIP OF LESSEE. the Guarantor shall cease to own, directly or
indirectly, all of the issued and outstanding capital stock of the Lessee; or

          (q)  VOLUNTARY CHANGE OF CONTROL. an event described in clauses (a)
through (c) of the definition of Change of Control in the Iron Mountain Credit
Agreement (as in effect on the date hereof without regard to any subsequent
amendment, modification, waiver, supplement or termination of such credit
agreement) shall occur and, in the case of any event described in clauses (a) or
(b) of such definition, the Guarantor or its Board of Directors shall have
caused, consented to or failed to exercise rights available to it to prevent,
such event; or

          (r)  CESSATION OF CONSTRUCTION. the Construction Agent ceases
construction of the Improvements for any Construction Property after the
commencement thereof for a period in excess of sixty (60) days in the aggregate
as a result of the Construction Agent's actions or omissions (and not due to a
Force Majeure Event);

then, in any such event, the Lessor may, in addition to the other rights and
remedies provided for in this ARTICLE V but subject to SECTION 5.4, immediately
terminate this Agreement by giving the Construction Agent written notice of such
termination, and upon the giving of such notice, all rights of the Construction
Agent and all obligations of the Lessor under this Agreement shall cease. Upon
any such termination, the Construction Agent shall immediately pay to the
Lessor, as and for liquidated damages, an amount equal to the Lease Balance as
of the date of such payment for all Construction Properties for which the Lease
Term has not commenced (whereupon the Lessor shall convey title to such
Properties to the Construction Agent or its designee in accordance with ARTICLES
XXII and XXV of the Lease). Alternatively, the Lessor, with or without
terminating this Agreement and without waiving or releasing the Construction
Agent from any obligation or Construction Agency Agreement Event of Default, may
(but shall be under no obligation to) remedy any Construction Agency Agreement
Event of Default for the account of and at the sole cost and expense of the
Construction Agent. The Construction Agent shall pay upon demand all costs,
expenses, losses, expenditures and damages (including, without limitation,
reasonable attorneys' fees) incurred by or on behalf of Lessor in connection
with any Construction Agency Agreement Event of Default, together with interest
thereon at the Overdue Rate from the date on which such amounts are paid by the
Lessor until such amounts are paid in full by the Construction Agent.

                                       13
<Page>

     5.2   SURVIVAL. The termination of this Agreement pursuant to SECTION 5.1
shall in no event relieve the Construction Agent of its liability
and obligations hereunder which accrued prior to such termination, all of which
shall survive any such termination.

     5.3   REMEDIES CUMULATIVE; WAIVERS.

          (a)  If a Construction Agency Agreement Event of Default shall have
occurred and be continuing, the Lessor shall have, in addition to the rights and
remedies provided for in SECTION 5.1, all rights and remedies available under
the Operative Documents or available at law, equity or otherwise.

          (b)  No failure to exercise and no delay in exercising, on the part of
the Lessor, any right, remedy, power or privilege under this Agreement or under
the other Operative Documents shall operate as a waiver thereof; nor shall any
single or partial exercise of any right, remedy, power or privilege under this
Agreement preclude any other or further exercise thereof or the exercise of any
other right, remedy, power or privilege. The rights, remedies, powers and
privileges provided in this Agreement, including with particularity SECTION 5.1,
are cumulative and not exclusive of any rights, remedies, powers and privileges
provided by law.

     5.4   LIMITATION ON RECOURSE LIABILITY. Notwithstanding anything
contained herein or in any other Operative Document to the contrary, upon the
occurrence and during the continuance of a Construction Agency Agreement Event
of Default described in SECTION 5.1(b) or (i) (unless such default results from
the Construction Agent's fraud, misapplication of funds, illegal acts or willful
misconduct) and provided that no other Construction Agency Agreement Event of
Default has occurred and is continuing, the aggregate maximum recourse liability
of the Construction Agent to the Lessor or any Person claiming by, through or
under the Lessor in respect of any Construction Property for which the Lease
Term has not commenced shall be limited to the Construction Period Guaranteed
Amount with respect to such Property. The Construction Agent or any Person
designated by it may, within five (5) Business Days of receipt of notice of the
occurrence of such Construction Agency Agreement Event of Default, purchase all
but not less than all of such Construction Properties for the aggregate Lease
Balance with respect to such Properties. Any such purchase shall be made in
accordance with the procedures set forth in SECTION 25.1 of the Lease. If the
Construction Agent does not elect to purchase such Construction Properties, the
Lessor may do any of the following as it may elect in its sole discretion:

         (a)  offer to extend the Construction Period for any affected
Construction Property;

         (b)  terminate this Agreement with respect to any affected
Construction Property and complete the Improvements applicable thereto (and upon
completion of such Improvements the Lease Term with respect to such Property
shall commence); or

         (c)  require the Construction Agent to pay to the Lessor the
Construction Period Guaranteed Amount with respect to any Construction Property
for which the Lease Term has not commenced and to relinquish its interests in
such Construction Property and convey possession thereof to the Lessor or its
designee free and clear of all Liens (other than Lessor Liens) and in compliance
with all Environmental Laws, accompanied by an affidavit to the Lessor and the
Lessor's title insurer to such effect, whereupon the Lessor shall be entitled to
sell such Construction Property.

With regard to the Lessor's right to sell any Construction Property for which
the Lease Term has not commenced, the Lessor and the Construction Agent
acknowledge and agree that the Lessor shall be entitled to recover from such
sale proceeds the entire Lease Balance for such Property all accrued and unpaid
interest, yield and other costs and expenses of the Lessor incurred in
connection with such Property from and after the occurrence of the
applicable Construction Agency Agreement Event of

                                       14
<Page>

Default (including any costs incurred in connection with completion of the
Construction of the Improvements and/or any sale of such Property or any portion
thereof) and any other amounts then due and payable to the Lessor or any other
Person under the Operative Documents, and all amounts recovered in excess of
such amounts shall be for the account of the Construction Agent.

     5.5   INVOLUNTARY CHANGE OF CONTROL. If an Involuntary Change of Control
shall occur, then any Lender in its sole discretion may, not less than
ninety (90) and not more than one hundred twenty (120) days after such
occurrence, give a notice to the Administrative Agent, the other Lenders, the
Lessor and the Construction Agent stating that it does not approve of such
Involuntary Change of Control. If any Lender gives such notice, then
notwithstanding anything to the contrary in any of the Operative Documents, and
provided no Event of Default or Construction Agency Agreement Event of Default
has occurred: (a) the Construction Agent shall have the right to cause the
Lessor to exercise its right under the Credit Agreement to require such Lender
to assign, on or before the date (the "TAKEOUT DATE") which is ninety (90) days
after the date on which such notice is received by the Construction Agent, to
one or more assignees designated by the Construction Agent all (but not less
than all) of such Lender's rights and obligations under the Credit Agreement and
(b) if the Construction Agent does not arrange for such assignment by such date,
then on the Takeout Date the Construction Agent will pay to the Lessor for the
account of such Lender an amount equal to such Lender's share of the Lease
Balance of each Construction Property for which the Lease Term has not
commenced, in which case: (i) such Lender's unused Commitment shall be cancelled
and (ii) the Lease Balance and the Maximum Lease Balance for such Property shall
be reduced by an amount equal to the amount so paid by the Construction Agent.

                                    ARTICLE 6

                           NO CONSTRUCTION AGENCY FEE

     6.1   LEASE AS FULFILLMENT OF LESSOR'S OBLIGATIONS. All obligations, duties
and requirements imposed upon or allocated to the Construction Agent shall be
performed by the Construction Agent at the Construction Agent's sole cost
and expense, and the Construction Agent will not be entitled to, and the
Lessor shall have no obligation to pay, any agency fee or other fee or
compensation, and the Construction Agent shall not be entitled to, and the
Lessor shall have no obligation to make or pay, any reimbursement therefor,
it being understood that this Agreement is being entered into as consideration
for and as an inducement to the Lessor and the Construction Agent
entering into the Lease and the other Operative Documents.

                                    ARTICLE 7

                                  MISCELLANEOUS

     7.1   NOTICES. All notices, consents, directions, approvals, instructions,
requests, demands and other communications required or permitted
by the terms hereof to be given to any Person shall be given in writing in the
manner provided in, shall be sent to the respective addresses set forth in, and
the effectiveness thereof shall be governed by the provisions of, SECTION 34.4
of the Lease.

     7.2   SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon
and inure to the benefit of the Lessor, the Construction Agent and their
respective successors and assigns.

     7.3   GOVERNING LAW. THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS
OF THE PARTIES UNDER THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED AND
INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT
REGARD TO CONFLICTS OF LAWS PRINCIPLES.

                                       15
<Page>

     7.4   AMENDMENTS, ETC. Neither this Agreement nor any provision
hereof may be amended, waived, discharged or terminated except by an instrument
in writing signed by the Lessor and the Construction Agent.

     7.5   COUNTERPARTS. This Agreement may be executed in any number
of separate counterparts and all of said counterparts taken together shall be
deemed to constitute one and the same instrument.

     7.6   SEVERABILITY. Any provision of this Agreement that is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

     7.7   HEADINGS AND TABLE OF CONTENTS. The headings and table of
contents contained in this Agreement are for convenience of reference only and
shall not limit or otherwise affect the meaning hereof.

     7.8   NO RECOURSE. Notwithstanding anything contained herein to
the contrary, this Agreement has been executed on behalf of the Lessor by the
Trustee and in no event shall the Trustee have any liability for the
performance, breach or failure of the representations, warranties, covenants,
agreements or other obligations of the Lessor hereunder or under any other
Operative Document, as to all of which recourse shall be had solely to the
assets of the Lessor. For all purposes of this Agreement, in the performance of
any duties or obligations of the Lessor hereunder, or the taking of any action
by the Lessor, the Trustee shall be entitled to the benefits of the terms and
provisions of the Trust Agreement. Nothing contained in this SECTION 7.8 shall
be construed to limit the exercise or enforcement, in accordance with the terms
of this Agreement and any other documents referred to herein, of rights and
remedies against the Lessor or its Assets, or against the Lessee or any other
Person expressly undertaking obligations in connection with the transactions
contemplated hereby.

                                       16
<Page>

         IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed and delivered by their proper and duly authorized
officers as of the day and year first above written.

                                          IRON MOUNTAIN STATUTORY TRUST -- 2001,
                                             as Lessor

                                          By:    First Union National Bank,
                                                   not in its individual
                                                   capacity but solely as
                                                   trustee

                                          By: /s/ W. Jeffrey Kramer
                                             ----------------------------------
                                              Name:  W. Jeffrey Kramer
                                              Title: Vice President

                                          IRON MOUNTAIN RECORDS MANAGEMENT,
                                              INC.,
                                              as Construction Agent

                                          By: /s/ John P. Lawrence
                                              ----------------------------------
                                              Name:  John P. Lawrence
                                              Title: Vice President and
                                                     Treasurer

                                       17
<Page>

                                                                         ANNEX I
                                                TO CONSTRUCTION AGENCY AGREEMENT
                                       FORM OF CONSTRUCTION DOCUMENTS ASSIGNMENT

                        CONSTRUCTION DOCUMENTS ASSIGNMENT

         FOR VALUE RECEIVED, and to secure the performance by IRON
MOUNTAIN RECORDS MANAGEMENT, INC. (the "ASSIGNOR"), of all of its obligations
under that certain Master Lease and Security Agreement dated as of May 22, 2001
(the "LEASE") between the Assignor and Iron Mountain Statutory Trust -- 2001
(the "SECURED PARTY") and its other Liabilities (as defined below), the Assignor
does hereby quitclaim, sell, assign, transfer and set over unto the Secured
Party all of the Assignor's right, title and interest in and to the following
(referred to collectively herein as the "COLLATERAL"):

                (i)  all construction contracts relating to the Construction
         Property described in Lease Supplement No. ___ dated __________,
         200__ (collectively, the "CONSTRUCTION CONTRACTS");

                (ii)  all design services agreements pertaining to such
         Construction Property (collectively, the "ARCHITECT'S AGREEMENTS");

                (iii)  all plans, specifications and drawings of any and every
         kind heretofore or hereafter prepared for use in connection with
         such Construction Property (including, without limitation, the
         Plans and Specifications for such Property), and any supplements,
         amendments or modifications thereto (collectively, the "PLANS"); and

                (iv)  all building and other permits, licenses, approvals and
         other Governmental Actions which are necessary or useful to the
         commencement and completion of the Construction for such Construction
         Property, or otherwise relate to such Construction, heretofore or
         hereafter obtained or applied for by or on behalf of the Assignor or
         any architects, engineers or contractors working on any aspect of such
         Construction, and any deposits made in connection therewith
        (collectively, the "PERMITS");

         PROVIDED, HOWEVER, that the Secured Party shall have no obligation or
         liability of any kind under or with respect to the Construction
         Contracts, the Architect's Agreements, the Plans or the Permits, either
         before or after the Secured Party's exercise of any rights hereby
         granted to it, and the Assignor agrees to save and hold the Secured
         Party harmless from and against, and to indemnify the Secured Party
         for, any and all such obligations and liabilities, contingent or
         otherwise, including without limitation reasonable attorneys' fees and
         expenses incurred in connection therewith, except to the extent caused
         by the gross negligence or willful misconduct of the Secured Party.

         This Construction Documents Assignment shall inure to the
benefit of the Secured Party and its successors and assigns and shall be binding
upon the Assignor and shall continue in full force and effect until all
obligations, liabilities and indebtedness of any kind now or hereafter due the
Secured Party from the Assignor under or with respect to the Lease and any of
the other Operative Documents, or which are otherwise secured hereby, whether
now existing or hereafter arising or incurred (collectively, the "LIABILITIES"),
have been fully paid, performed and satisfied, and the Commitment has
terminated, at which time this Construction Documents Assignment will terminate.
The Secured Party will not exercise any of its rights hereunder until there
shall have occurred and be continuing a Construction Agency Agreement Event of
Default.

                                       I-1
<Page>

         For purposes of completing the Construction after any Construction
Agency Agreement Event of Default shall have occurred and be continuing,
the Secured Party may, at its option, further assign its right, title
and interest in the Collateral without the consent of the Assignor or any
contractor, architect or other design professional.

         This Construction Documents Assignment is a present, perfected
and absolute assignment; PROVIDED, HOWEVER, that the Secured Party shall not
have the right to undertake completion of the Construction of the Construction
Property referred to herein or directly to enforce the provisions of any
Construction Contract or any Architect's Agreement until a Construction Agency
Agreement Event of Default shall have occurred and be continuing. During the
continuance of any such Construction Agency Agreement Event of Default, the
Secured Party may, without affecting any other right or remedy available to it,
exercise its rights under this Construction Documents Assignment as provided
herein in any manner permitted by law. If any notice to the Assignor is required
by law, such notice shall be deemed commercially reasonable if given at least
ten (10) days prior to the date of intended action.

         This Construction Documents Assignment may be effectively
waived, modified, amended or terminated only by a written instrument executed by
the Secured Party and the Assignor. Any waiver by the Secured Party shall be
effective only with respect to the specific instance described therein. Delay or
course of conduct shall not constitute a waiver of any right or remedy of the
Secured Party.

         Capitalized terms used but not otherwise defined in this
Construction Documents Assignment have the respective meanings specified in
APPENDIX 1 to the Lease; and the rules of interpretation set forth in APPENDIX 1
to the Lease shall apply to this Construction Documents Assignment.

         THIS CONSTRUCTION DOCUMENTS ASSIGNMENT HAS BEEN DELIVERED IN,
AND SHALL IN ALL RESPECTS BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH, THE
LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE CONFLICTS OF LAW PRINCIPLES
THEREOF) APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED ENTIRELY WITHIN SUCH
STATE, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE.

         IN WITNESS WHEREOF, the undersigned has caused this Construction
Documents Assignment to be duly executed and delivered as of this ___ day of
_____________, 200__ by its proper and duly authorized officer.

                                          IRON MOUNTAIN RECORDS MANAGEMENT,
                                             INC.,
                                             as Assignor

                                          By:
                                             -----------------------------------
                                             Name:
                                             Title:

                                      I-2
<Page>

                                                                       EXHIBIT A
                                                TO CONSTRUCTION AGENCY AGREEMENT

           FORM OF SUPPLEMENT TO MASTER CONSTRUCTION AGENCY AGREEMENT

               SUPPLEMENT TO MASTER CONSTRUCTION AGENCY AGREEMENT

     SUPPLEMENT NO. ____ (this "SUPPLEMENT") to Master Construction Agency
Agreement dated as of _____________, 200__, between IRON MOUNTAIN STATUTORY
TRUST -- 2001 (the "LESSOR"), and IRON MOUNTAIN RECORDS MANAGEMENT, INC. (the
"CONSTRUCTION AGENT"). Capitalized terms used but not otherwise defined in this
Supplement have the respective meanings specified in APPENDIX 1 to the Lease
referred to below; and the rules of interpretation set forth in APPENDIX 1 to
the Lease shall apply to this Supplement.

                              W I T N E S S E T H:
                               - - - - - - - - - -

     WHEREAS, pursuant to the Master Lease and Security Agreement dated as of
May 22, 2001 (the "LEASE"), between the Lessor and Iron Mountain Records
Management, Inc., as lessee (the "LESSEE"), the Lessor and the Lessee have
entered into Lease Supplement No. ____ dated ___________, ____ pursuant to which
the Lessee has agreed to lease certain Construction Property from the Lessor;
and

     WHEREAS, subject to the terms and conditions of the Construction Agency
Agreement, the Lessor and the Construction Agent desire that the terms of the
Construction Agency Agreement apply to such Construction Property, more
particularly described in SCHEDULE 1, and wish to execute this Supplement to
provide therefor;

     NOW, THEREFORE, in consideration of the foregoing, and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto covenant and agree as follows:

     1.   The Construction Agent agrees to act as Construction Agent and to
perform its obligations under the Construction Agency Agreement in connection
with the completion of construction of the Improvements on the Land described in
SCHEDULE 1 in accordance with the Plans and Specifications and for such
Improvements.

     2.   This Supplement shall, upon its execution and delivery, constitute a
part of the Construction Agency Agreement.

Dated as of this ______ day of _______, 200__.

                                          LESSOR

                                          IRON MOUNTAIN STATUTORY TRUST-- 2001

                                          By:    First Union National Bank,
                                                 not in its individual capacity,
                                                  but solely as trustee

                                          By:
                                             -----------------------------------
                                             Name:
                                             Title:

                                    A-1
<Page>

                                          CONSTRUCTION AGENT

                                          IRON MOUNTAIN RECORDS MANAGEMENT,
                                             INC.

                                          By:
                                              ----------------------------------
                                              Name:
                                              Title:

                                    A-2
<Page>

                                                                       EXHIBIT B
                                                TO CONSTRUCTION AGENCY AGREEMENT

                         ACCEPTABLE INSURANCE EXCLUSIONS

The builder's risk policy may provide that this policy does not insure:

         a)    against any fraudulent or dishonest act or acts
committed by the Insured or any of the Insured's employees with the manifest
intent to:

                i)  cause the Insured to sustain such loss; and

                ii) obtain financial benefit for the Insured's employee, or for
any other person or organization intended by the Insured or the employee to
receive such benefit, other than salaries, commissions, fees, bonuses,
promotions, awards, profit sharing, pensions, or other employee benefits earned
in the normal course of employment;

         b)     against the cost of making good defective design or
specifications, faulty material, or faulty workmanship; however, this exclusion
shall not apply to loss or damage resulting from such defective design or
specifications, faulty material, or faulty workmanship;

         c)     against errors in processing or manufacture of the
Insured's product unless a peril not otherwise excluded ensues and then this
policy shall cover for such ensuing loss or damage;

         d)     against ordinary wear and tear, gradual deterioration,
decay, erosion, corrosion, insects, rodents, inherent vice, latent defect, mold,
wet or dry rot unless a peril not otherwise excluded ensues and then this policy
shall cover for such ensuing loss or damage;

         e)     against normal settling, cracking, shrinking, bulging
or expansion of pavements, foundations, walls, floors, roofs or ceilings unless
a peril not otherwise excluded ensues and then this policy shall cover for such
ensuing loss or damage;

         f)     against accumulated effects of smog, smoke, vapor,
liquid or dust;

         g)     the release, discharge, dispersal, seepage, migration
or escape of pollutants except this policy will cover the release, discharge,
dispersal, seepage, migration or escape of pollutants only if proximately and
predominately caused by: fire; lightning; explosion; wind or hail; smoke;
aircraft or vehicles; riot or civil commotion; vandalism; leakage from fire
protective equipment; sinkhole collapse; volcanic action; breakage of glass;
falling objects; weight of snow, ice or sleet; water damage; sonic shock waves;
earthquake and/or flood.

                This exclusion shall not apply to loss or damage from resulting
fire, explosion, smoke, vehicles, riot or civil commotion, vandalism, leakage
from fire protective equipment, falling objects or water damage. However, this
Company shall be liable only for such resulting loss or damage.

         h)     against nuclear reaction, nuclear radiation, or radioactive
contamination, all whether controlled or uncontrolled, and whether such loss
be direct or indirect, proximate, or remote; or be in whole or in part caused
by, contributed to, or aggravated by the peril(s) insured against in this
policy; except if a covered peril ensues, liability is specifically assumed for
direct loss by such ensuing peril but

                                       A-3
<Page>

not including any loss due to nuclear reaction, nuclear radiation, or
radioactive contamination. This Company shall be liable for loss or damage
caused by sudden and accidental radioactive contamination including resultant
radiation damage for each occurrence from material used or stored or from
processes conducted on insured premises provided at the time of loss there
is neither a nuclear reactor capable of sustaining nuclear fission in a
self-supporting chain reaction nor any new or used nuclear fuel on the
insured premises;

         i)     against hostile or warlike action in time of peace or war,
including action in hindering, combating, or defending against an actual,
impending, or expected attack by any government or sovereign power (de jure or
de facto) or by any authority maintaining or using military, naval, or air
forces; or by military, naval, or air forces; or by any agent of any such
government, power, authority, or forces;

         i)     against any weapon employing atomic fission or fusion;

         ii)    against rebellion, revolution, civil war, usurped power, or
action taken by governmental authority in hindering, combating, or defending
against such occurrence;

         iii)   against seizure or destruction by order of public authority,
except destruction by order of public authority to prevent the spread of, or
to otherwise contain, control or minimize loss, damage or destruction which
occurs due to a peril insured against under this policy;

         iv)    against risks of contraband or illegal trade.

         Notwithstanding the above provisions, this insurance shall cover
loss or damage directly caused by acts committed by an agent of any government,
party, or faction engaged in war, hostilities, or warlike operations, provided
such agent is acting secretly and not in connection with any operation of armed
forces (whether military, naval, or air forces) in the country where the
property is situated. Nothing in the foregoing shall be construed to include any
loss, damage, or expense caused by or resulting from any of the risks or perils
excluded above, excepting only the acts of certain agents expressly covered
herein, but in no event shall this insurance include any loss, damage, or
expense caused by or resulting from any weapon or war employing atomic fission
or fusion whether in time of peace or war.

                                   A-4<PAGE>

                                                                   EXHIBIT 10.1

                            MASTER SERVICES AGREEMENT

         This Master Services Agreement ("Agreement") is made between Cubist
Pharmaceuticals, Inc. which has a place of business at 24 Emily Street,
Cambridge, MA 02139 (hereinafter "Sponsor"), and Quintiles, Inc., a North
Carolina corporation having its principal place of business at 5927 South Miami
Blvd., Durham, NC 27703 (hereinafter "Quintiles"). When signed by both parties,
this Agreement will set forth the terms and conditions under which Quintiles
agrees to provide certain services to Sponsor as set forth herein.

                                    RECITALS:

         A. Sponsor is in the business of developing, manufacturing and/or
distributing pharmaceutical products, medical devices and/or biotechnology
products. Quintiles is in the business of providing clinical trial services,
research, and other services for the pharmaceutical, medical device and
biotechnology industries and has made significant, up-front investments in
technologies related to those industries, building on important inventions and
web-based technologies.

         B. Sponsor and Quintiles desire to enter into this Agreement to provide
the terms and conditions upon which Sponsor may engage Quintiles to provide
services for projects by executing individual Work Orders (as defined below)
specifying the details of the services and the related terms and conditions.

                                   AGREEMENT:

1.0      SCOPE OF THE AGREEMENT; WORK ORDERS; NATURE OF SERVICES;

         (a)      SCOPE OF AGREEMENT. As a "master" form of contract, this
                  Agreement allows the parties to contract for multiple projects
                  through the issuance of multiple Work Orders (as discussed in
                  Section 1(b) below), without having to re-negotiate the basic

                                       1
<PAGE>

                  terms and conditions contained herein. This Agreement covers
                  the provision of services by Quintiles and Quintiles'
                  corporate affiliates (see Section 17) and, accordingly, this
                  Agreement represents a vehicle by which Sponsor can
                  efficiently contract with Quintiles and its corporate
                  affiliates for a broad range of services.

         (b)      WORK ORDERS. The specific details of each project under this
                  Agreement (each "Project") shall be separately negotiated and
                  specified in writing on terms and in a form acceptable to the
                  parties (each such writing, a "Work Order"). A sample Work
                  Order is attached hereto as Exhibit A. Each Work Order will
                  include, as appropriate, the scope of work, time line, and
                  budget and payment schedule. Each Work Order shall be subject
                  to all of the terms and conditions of this Agreement, in
                  addition to the specific details set forth in the Work Order.
                  To the extent any terms or provisions of a Work Order conflict
                  with the terms and provisions of this Agreement, the terms and
                  provisions of this Agreement shall control, except to the
                  extent that the applicable Work Order expressly and
                  specifically states an intent to supersede the Agreement on a
                  specific matter. All Work Orders and other exhibits hereto
                  shall be deemed to be incorporated herein by reference.

         (c)      NATURE OF SERVICES. The services covered by this Agreement may
                  include strategic planning, expert consultation, clinical
                  trial services, statistical programming and analysis, data
                  processing, data management, regulatory, clerical, project
                  management, central laboratory services, preclinical services,
                  pharmaceutical

                                       2
<PAGE>

                  sciences services, medical device services, and other research
                  and development services requested by Sponsor and agreed to by
                  Quintiles as set forth in the relevant Work Order
                  (collectively, the "Services"). Quintiles and Sponsor, where
                  appropriate, shall cooperate in the completion of a Transfer
                  of Obligations Form in conjunction with the relevant Work
                  Order. Any responsibilities not specifically transferred in
                  the Transfer of Obligations Form shall remain the regulatory
                  Responsibility of Sponsor. The obligations that have been
                  transferred to Quintiles will be provided in the 1571 form to
                  the FDA.

2.0      PAYMENT OF FEES AND EXPENSES. Sponsor will pay Quintiles for fees,
         expenses and pass-through costs in accordance with the budget and
         payment schedule contained in each Work Order. Sponsor agrees that the
         budget and payment schedule for each Work Order will be structured in
         an effort to maintain cash neutrality for Quintiles (with respect to
         the payment of professional fees, pass-through costs and otherwise).
         Sponsor agrees that a prepayment may be necessary for Quintiles to
         maintain cash neutrality over the term of the Work Order taking into
         account payment terms agreed upon between the parties. Unless otherwise
         agreed in a particular Work Order, the following shall apply: (a)
         Quintiles will invoice Sponsor monthly for the fees, expenses and
         pass-through costs incurred in performing the Services; and, (b)
         Sponsor shall pay each invoice within thirty (30) days of the date of
         the invoice. If any portion of an invoice is disputed, then Sponsor
         shall pay the undisputed amounts as set forth in the preceding sentence
         and the parties shall use good faith efforts to reconcile the disputed
         amount as soon as practicable. Sponsor shall pay Quintiles interest in
         an amount equal to one percent (1%) per month of all

                                       3
<PAGE>

         undisputed amounts owing hereunder and not paid within thirty (30)
         days of the date of the invoice.

3.0      TERM. This Agreement shall commence on the date it has been signed by
         all parties and shall continue for a period of five (5) years from the
         date of execution, or until terminated by either party in accordance
         with Section 16 below. The Agreement will automatically renew each year
         thereafter for a period of one year, unless either party notifies the
         other party in writing at least 30 days prior to the renewal date that
         it does not want to renew the Agreement.

4.0      CHANGE ORDERS. Any (a) change in the details of a Work Order, even if a
         fixed price Work Order, or (b) change in the assumptions upon which the
         Work Order is based (including, but not limited to, changes in an
         agreed starting date for a Project or suspension of the Project by
         Sponsor) may require changes in the budget and/or time lines, and shall
         require a written amendment to the Work Order (a "Change Order"). Each
         Change Order shall detail the requested changes to the applicable task,
         responsibility, duty, budget, time line or other matter. The Change
         Order will become effective upon the execution of the Change Order by
         both parties, and will include a specified period of time (as agreed
         upon by the parties) within which Quintiles will implement the changes.
         Both parties agree to act in good faith and promptly when considering a
         Change Order requested by the other party. Quintiles reserves the right
         to postpone effecting material changes in the Project's scope until
         such time as the parties agree to and execute the corresponding Change
         Order. For any Change Order that affects the scope of the regulatory
         obligations that have been transferred to Quintiles, Quintiles and
         Sponsor- shall execute a corresponding amendment to the Transfer of

                                       4
<PAGE>

         Obligations Form. Sponsor shall provide such changes to the FICA on the
         1571 form and will file such amendment where appropriate, or as
         required by law or regulation.

5.0      CONFIDENTIALITY. It is understood that during the course of this
         Agreement, Quintiles and its employees may be exposed to data and
         information that are confidential and proprietary to Sponsor. All such
         data and information (hereinafter "Sponsor Confidential Information")
         written or verbal, tangible or intangible, made available, disclosed,
         or otherwise made known to Quintiles and its employees as a result of
         Services under this Agreement shall be considered confidential and
         shall be considered the sole property of Sponsor. All information
         regarding Quintiles' operations, methods, and pricing and all
         Quintiles' Property (as defined in Section 6.0 below), disclosed by
         Quintiles to Sponsor in connection with this Agreement is proprietary,
         confidential information belonging to Quintiles (the "Quintiles
         Confidential Information", and together with the Sponsor Confidential
         Information, the "Confidential Information"). The Confidential
         Information shall be used by the receiving party and its employees only
         for purposes of performing the receiving party's obligations hereunder.
         Each party agrees that it will not reveal, publish or otherwise
         disclose the Confidential Information of the other party to any third
         party without the prior written consent of the disclosing party. Each
         party agrees that it will not disclose the terms of this Agreement or
         any Work Order to any third party without the prior written consent of
         the other party, which shall not unreasonably be withheld. These
         obligations of confidentiality and nondisclosure shall remain in effect
         for a period of five (5) years after the completion or termination of
         the applicable Work Order.

                                       5
<PAGE>

         The foregoing obligations shall not apply to Confidential Information
         to the extent that it: (a) is or becomes generally available to the
         public other than as a result of a disclosure by the receiving party;
         (b) becomes available to the receiving party on a non-confidential
         basis from a source which is not prohibited from disclosing such
         information; (c) was developed independently of any disclosure by the
         disclosing party or was known to the receiving party prior to its
         receipt from the disclosing party, as shown by contemporaneous written
         evidence; or, (d) is required by law or regulation to be disclosed,
         provided however that the other party is promptly notified in writing
         of such requirement prior to, if practicable, disclosure and given an
         opportunity to obtain a suitable protective order.

6.0      OWNERSHIP AND INVENTIONS. All data, information, inventions,
         improvements in know-how, new uses, processes and compounds relating to
         the study drug(s) and or products(s) covered by this Agreement and/or
         applicable Work Orders that are conceived, generated, derived, or
         reduced to practice by Quintiles as the result of the Services
         performed by Quintiles under this Agreement shall be and remain the
         exclusive property of Sponsor and Quintiles agrees to assign its rights
         in all such inventions and/or related patents to Sponsor.
         Notwithstanding the foregoing, Sponsor acknowledges that Quintiles
         possesses certain inventions, processes, know-how, trade secrets,
         improvements, other intellectual properties and other assets, including
         but not limited to analytical methods, procedures and techniques,
         procedure manuals, personnel data, financial information, computer
         technical expertise and software, which have been independently
         developed by Quintiles and which relate to its business or operations
         (collectively "Quintiles' Property"). Sponsor and Quintiles

                                       6
<PAGE>

         agree that any Quintiles' Property or improvements thereto which are
         used, improved, modified or developed by Quintiles under or during the
         term of this Agreement arc the sole and exclusive property of
         Quintiles.

7.0      RECORDS AND MATERIALS. At the completion of the Services by Quintiles,
         all materials, information and all other data owned by Sponsor,
         regardless of the method of storage or retrieval, shall be delivered to
         Sponsor in such form as is then currently in the possession of
         Quintiles, subject to the payment obligations set forth in Section 2
         herein. Alternatively, at Sponsor's written request, such materials and
         data may be retained by Quintiles for Sponsor for an agreed-upon time
         period, or disposed of pursuant to the written directions of Sponsor.
         Sponsor shall pay the costs associated with any of the above options
         and shall pay a to-be-determined fee for storage by Quintiles of
         records and materials after completion or termination of the Services.
         Quintiles, however, reserves the right to retain, at its own cost and
         subject to the confidentiality provisions herein, one copy of all
         materials for its corporate files. Nothing in this Agreement shall be
         construed to transfer from Sponsor to Quintiles any FDA or regulatory
         record-keeping requirements unless such transfer is specifically
         provided for in the applicable Transfer of Obligations Form.

8.0      INDEPENDENT CONTRACTOR RELATIONSHIP. Except as provided in Article 10.0
         herein, for the purposes of this Agreement, the parties hereto are
         independent contractors and nothing contained in this Agreement shall
         be construed to place them in the relationship of partners, principal
         and agent, employer/employee or joint venturers

                                       7
<PAGE>

         and neither party shall have the power or right to bind or obligate the
         other party or shall hold itself out as having such authority. If,
         however, Sponsor desires to conduct clinical trials in one or more
         countries that require a local sponsor or representative, and Sponsor
         does not have an office in those countries, then sponsor may request
         that Quintiles or its affiliates serve as its agent for that purpose,
         and the parties will include in the Work Order an attachment regarding
         local representative duties.

9.0      REGULATORY COMPLIANCE; INSPECTIONS. Quintiles agrees that its Services
         will be conducted in compliance with ICH Guidelines, Good Clinical
         Practices, all applicable laws, rules and regulations, including but
         not limited to the Federal Food, Drug and Cosmetic Act and the
         regulations promulgated pursuant thereto, and with the standard of care
         customary in the contract research organization industry. Quintiles'
         standard operating procedures will be used in performance of the
         Services, unless otherwise specifically stated in the Work Order.
         Quintiles certifies that it has not been debarred by the FDA pursuant
         to Section (a) or (b) of 21 U.S.C. Section 335a, and that it will not
         knowingly employ any person or entity that has been so debarred to
         perform any Services under this Agreement. Sponsor represents and
         certifies that it will not require Quintiles to perform any assignments
         or tasks in a manner that would or potentially would violate any
         applicable law or regulation or scientific standard. Sponsor further
         represents that it will cooperate with Quintiles in taking any actions
         that Quintiles reasonably believes are necessary to comply with the
         regulatory obligations that have been transferred to Quintiles.

                                       8
<PAGE>

         Each party acknowledges that the other party may respond independently
         to any regulatory correspondence or inquiry in which such party or its
         affiliates is named. Sponsor may review and approve Quintiles' response
         with respect to Sponsor's study or Project, but such approval shall not
         be unreasonably withheld. Each party, however, shall: a) notify the
         other party promptly of any FDA or other governmental or regulatory
         inspection or inquiry concerning any study or Project of Sponsor in
         which Quintiles is providing Services and such inspection or inquiry
         relates to or affects such Services, including but not limited to,
         inspections of investigational sites or laboratories; b) forward to the
         other party copies of any correspondence from any regulatory or
         governmental agency relating to such a study or Project, including, but
         not limited to, FDA Form 483 notices, and FDA refusal to file,
         rejection or warning letters, even if they do not specifically mention
         the other party; and, c) obtain the written consent of the other party,
         which will not unreasonably be withheld, before referring to the other
         party or any of its affiliates in any regulatory correspondence. Where
         reasonably practicable, each party will be given the opportunity to
         have a representative present during an FDA or regulatory inspection.
         Each party, however, acknowledges that it may not direct the manner in
         which the other party fulfills its obligations to permit inspection by
         governmental entities.

         Each party agrees that, during an inspection by the FDA or other
         regulatory authority concerning any study or Project of Sponsor in
         which Quintiles is providing Services, it will not disclose information
         and materials that are not required to be disclosed to such agency,
         without the prior written consent of the other party, which consent
         shall not unreasonably be withheld. Such information and materials
         includes, but are not limited to, the following: 1) financial data and
         pricing data

                                       9
<PAGE>

         (including, but not limited to, the budget and payment sections of the
         Work Order); 2) sales data (other than shipment data); and 3) personnel
         data (other than data as to qualification of technical and professional
         persons performing functions subject to regulatory requirements.)

         During the term of this Agreement, Quintiles will permit Sponsor's
         representatives (unless such representatives are competitors of
         Quintiles) to examine or audit the work performed hereunder and the
         facilities at which the work is conducted upon reasonable advance
         notice during regular business hours to determine that the Project
         assignment is being conducted in accordance with the agreed task and
         that the facilities are adequate. All information disclosed, revealed
         to or ascertained by Sponsor in connection with any such audit or
         examination or in connection with any correspondence between Quintiles
         and any regulatory authorities (including any FDA Form 483 notices)
         shall be deemed to constitute Quintiles Confidential Information for
         purposes of this Agreement. Sponsor shall reimburse Quintiles for its
         time and expenses (including reasonable attorney fees and the costs of
         responding to findings) associated with any inspection, audit or
         investigation relating to the Services ("Inspection") instigated by
         Sponsor or by a governmental authority, unless such Investigation finds
         that Quintiles breached this Agreement or any applicable law or
         regulation.

10.0     RELATIONSHIP WITH INVESTIGATORS. If a particular Work Order obligates
         Quintiles to contract with investigators or investigative sites
         (collectively, "Investigators") then Quintiles will use the approved
         Clinical Trial Agreement ("CTA") form, a copy of which is attached
         hereto as Exhibit B, which Quintiles will execute as the authorized
         agent of Sponsor. If the agreed-upon CTA form is updated by Sponsor,
         Quintiles will use the then current CTA form as of the time of the Work
         Order. If

                                       10
<PAGE>

         an Investigator insists upon any material changes to any provisions
         that directly relate to Sponsor, then Quintiles shall submit the
         proposed material charge to Sponsor, and Sponsor shall review, comment
         on and/or approve such proposed changes within five (5) working days.
         If the CTA form, or any changes approved by Sponsor, differ from the
         terms of this Agreement or a Work Order (including, but not limited to,
         provisions allowing an Investigator to publish results or data that
         Quintiles is prohibited from revealing), then Quintiles shall have no
         liability for including any such approved provisions or changes. The
         parties acknowledge and agree that Investigators shall not be
         considered the employees, agents, or subcontractors of Quintiles or
         Sponsor and that Investigators shall exercise their own independent
         medical judgment. Quintiles' responsibilities with respect to
         Investigators shall be limited to those responsibilities specifically
         set forth in this Agreement and the applicable Work Order.

         If Quintiles will be paying Investigators on behalf of Sponsor, the
         parties will agree in the applicable Work Orders as to a schedule of
         amounts to be paid to Investigators. Sponsor acknowledges and agrees
         Quintiles will only pay Investigators from advances or pre-payments
         received from Sponsor for Investigators' services, and that Quintiles
         will not make payments to Investigators prior to receipt of sufficient
         funds from Sponsor. Sponsor acknowledges and agrees that Quintiles will
         not be responsible for delays in a study or Project to the extent that
         such delays are caused by Sponsor's failure to make adequate
         pre-payment for Investigators' services. Sponsor further acknowledges
         and agrees that payments for Investigators' services are pass-through
         payments to third parties and are separate from payments for Quintiles'
         Services.

                                       11
<PAGE>

11.0     CONFLICT OF AGREEMENTS. Quintiles represents to Sponsor that it is not
         a party to any agreement which would prevent it from fulfilling its
         obligations under this Agreement and that during the terms of this
         Agreement, Quintiles agrees that it will not enter into any agreement
         to provide services which would in any way prevent it from providing
         the Services contemplated under this Agreement. Sponsor agrees that it
         will not enter into an agreement with a third party that would alter or
         affect the regulatory obligations delegated to Quintiles in any study
         or project without the written consent of Quintiles, which will not be
         unreasonably withheld.

12.0     RESTRICTIONS ON ANNOUNCEMENTS. Quintiles shall not make any oral
         presentation or publications relating to any Project without Cubist's
         prior written consent except as required by law or by court or
         administrative order, or as provided below with regard to Sponsor's
         publication rights. Neither party shall employ or use the name of the
         other party in any announcement, publication or promotional material or
         in any form for public distribution, without the prior written consent
         of the other party, except as required by law or by court or
         administrative order. Sponsor shall have the exclusive, unrestricted
         right to publish the results of a particular study.

13.0     [OMITTED]

14.0     INDEMNITY. Sponsor shall indemnify and hold Quintiles and its
         affiliates and its and their directors, officers, employees, and agents
         harmless and hereby forever releases and discharges Quintiles and its
         affiliates and its and their directors, officers, employees, and agents
         from and against all losses, liabilities, damages and expenses
         (including reasonable attorneys' fees and cost's) ("Losses") that
         Quintiles its

                                       12
<PAGE>

         affiliates and its and their directors, officers, employees, and agents
         may suffer or incur as a result of any claims, demands, actions or
         other proceedings made or instituted by a third party against any of
         them arising out of or relating to the Services performed under this
         Agreement or any Work Order for these Losses that arise out of (a) any
         injury to or death of any person participating in any project or study,
         (b) the negligence or intentional misconduct of Sponsor or its
         affiliates, or its or their directors, officers, employees or agents,
         (c) any breach of this Agreement or any Work Order by Sponsor or its
         affiliates, or its or their directors, officers, employees or agents;
         (d) any theory of product liability (including, without limitation,
         actions in the form of tort, warranty or strict liability) or; e) any
         patent infringement action relating, to Sponsor's compounds or products
         accept to the extent that such Losses result from (a) any material
         breach by Quintiles of its obligations under this Agreement, or (b) the
         negligence, recklessness or intentional acts or omissions in connection
         with the work performed by or on behalf of Quintiles hereunder. In no
         event shall Sponsor indemnify Quintiles for any loss, liability, damage
         or expense suffered or incurred as a result of activity which is
         outside the scope of a Work Order hereunder.

         Quintiles shall indemnify and hold Sponsor and its affiliates and its
         and their directors, officers, employees, and agents harmless and
         hereby forever releases and discharges Sponsor and its affiliates and
         its and their directors, officers, employees, and agents from and
         against all losses, liabilities, damages and expenses (including
         reasonable attorneys' fees and costs) that Sponsor and its affiliates
         and its and their directors, officers, employees, and agents may suffer
         or incur as a result of any claims, demands, actions or other
         proceedings made or instituted by a third party against any of them
         arising out of or relating to the Services

                                       13
<PAGE>

         performed under this Agreement or any Work Order to the extent that
         such claims, demands, actions or other proceedings result from (a) any
         material breach of Quintiles of its obligations under this Agreement,
         or (b) the negligence, recklessness or intentional acts or omissions in
         connection with the work performed by or on behalf of Quintiles
         hereunder.

15.0     Procedure. The party that intends to claim indemnification under this
         Article (the "Indemnitee") shall promptly notify the indemnifying party
         (the "Indemnitor") for any loss, claim, damage, liability or action
         with respect to which the Indemnitee intends to claim such
         indemnification, and the Indemnitor shall assume the defense thereof
         with counsel mutually satisfactory to the Indemnitee whether or not
         such loss, claim, damage, liability or action is rightfully brought;
         provided, however, that an Indemnitee shall have the right to retain
         its own counsel, with the fees and expenses to be paid by the
         Indemnitor if Indemnitor does not assume the defense, or, if
         representation of such Indemnitee by the counsel retained by the
         Indemnitor would be inappropriate due to actual or potential differing
         interests between such Indemnitee and any other person represented by
         such counsel in such proceedings. The indemnity agreement in this
         Article shall not apply to amounts paid in settlement of any loss,
         claim, damage, liability or action if such settlement is effected
         without the consent of the Indemnitor, which consent shall not be
         withheld or delayed unreasonably. The failure to deliver notice to the
         Indemnitor within a reasonable time after the commencement of any such
         action, only if prejudicial to its ability to defend such action, shall
         relieve such Indemnitor of any liability to the Indemnitee under this
         Article, but the omission to deliver notice to the Indemnitor will not
         relieve it of any liability that it may have to any Indemnitee
         otherwise
                                       14

<PAGE>

         than under this Article. The lndemnitor shall not settle the action or
         otherwise consent to an adverse judgement in such action that
         diminishes the rights or interest of the Indemnitee without the express
         consent of the Indemnitee. The Indemnitee under this Article, its
         employees and agents, shall cooperate fully with the Indemnitor and its
         legal representatives in the investigations of any action, claim or
         liability covered by this indemnification. The Indemnitee shall keep
         the Indemnitor informed of any investigation and the Indemnitor shall
         have the right to review and comment on the conduct of the
         investigation.

16.0     TERMINATION. Sponsor may terminate this Agreement or any Work Order
         without cause at any time during the term of the Agreement on
         forty-five (45) days' prior written notice to Quintiles. Either party
         may terminate this Agreement or any Work Order for material breach upon
         thirty (30) days' written notice specifying the nature of the breach,
         if such breach has not been substantially cured within the thirty (30)
         day period. During the 30-day cure period for termination due to
         breach; each party will continue to perform its obligations under the
         Agreement. If the termination notice is not due to a breach, or if the
         cure period has expired without a substantial cure of the breach, then
         the parties shall promptly meet to prepare a close-out schedule, and
         Quintiles shall cease performing all work not necessary for the orderly
         close-out of the Services or required by laws or regulations. Either
         party may terminate this Agreement or any Work Orders immediately upon
         provision of written notice if the other party becomes insolvent or
         files for bankruptcy. Any written termination notice shall identify the
         specific Work Order or Work Orders that are being terminated.

                                       15
<PAGE>

         If this Agreement or any Work Order is terminated, Sponsor shall pay
         Quintiles for all Services performed in accordance with this Agreement
         and any applicable Work Order and reimburse Quintiles for all costs and
         expenses incurred in performing those Services, including all
         non-cancelable costs incurred prior to termination but paid after the
         termination date. Sponsor shall pay for all the work actually performed
         in accordance with this Agreement and the applicable Work Order, even
         if the parties' original payment schedule spreads-out payments for
         certain services (examples are unit or milestone-based payments) or
         defers payments for certain services until the end of the Study.
         Sponsor shall pay for all actual costs, including time spent by
         Quintiles personnel (which shall be billed at Quintiles' standard daily
         rates in effect as of the date of the termination notice), incurred to
         complete activities associated with the termination and close-out of
         affected Projects, including the fulfillment of any regulatory
         requirements. In addition, if the termination is by Sponsor without
         cause, or by Quintiles for cause, and the total fees for the Project
         are greater than one million U.S. dollars in value, then Sponsor shall
         pay to Quintiles an amount equal to twenty percent (20%) of the budget
         for the remainder of Services that have not yet been performed, to
         cover Quintiles' costs associated with early termination.

17.0     RELATIONSHIP WITH AFFILIATES. Sponsor agrees that Quintiles may use the
         Services of its corporate affiliates, subject to prior written consent
         by the Sponsor, to fulfill Quintiles' obligations under this Agreement
         and any Work Order. Any affiliate so used shall be subject to all of
         the terms and conditions applicable to Quintiles under this Agreement
         or any Work Order, entitled to all rights and protections afforded
         Quintiles under this Agreement or any Work Order. Quintiles

                                       16
<PAGE>

         agrees that Sponsor's affiliates may use the services of Quintiles (and
         its affiliates) under this Agreement. In such event, such Sponsor's
         affiliates shall be bound by all the terms and conditions of this
         Agreement and any Work Order and entitled to all rights and protections
         afforded Sponsor under this Agreement and any Work Order. The term
         "affiliate" shall mean all entities controlling, controlled by or under
         common control with Sponsor or Quintiles, as the case may be. The term
         "control" shall mean the ability to vote fifty percent (50%) or more of
         the voting securities of any entity or otherwise having the ability to
         influence and direct the policies and direction of an entity.

18.0     COOPERATION; SPONSOR DELAYS; DISCLOSURE OF HAZARDS. Sponsor shall
         forward to Quintiles in a timely manner all documents, materials and
         information in Sponsor's possession or control necessary for Quintiles
         to conduct the Services. Quintiles shall not be liable to Sponsor nor
         be deemed to have breached this Agreement or any Work Order for errors,
         delays or other consequences arising from Sponsor's failure to timely
         provide documents, materials or information or to otherwise cooperate
         with Quintiles in order for Quintiles to timely and properly perform
         its obligations. If Sponsor delays a project from its agreed starting
         date or suspends performance of a project for a period longer than 10
         working days, then either: a) Sponsor will pay the standard daily rate
         of the Quintiles' personnel assigned to the project, based on the
         percentage of their time allocated to the project, for the period of
         the delay beginning on the eleventh working day, in order to keep the
         Current team members; or, b) Quintiles may re-allocate the personnel at
         its discretion, and Sponsor will pay the costs of retraining new
         personnel. In addition, Sponsor will pay all non-cancelable costs and
         expenses incurred by Quintiles due to the delay and will adjust all
         timelines to reflect additional time required

                                       17
<PAGE>

         due to the delay. Sponsor shall provide Quintiles with all information
         available to it regarding known or potential hazards associated with
         the use of any substances supplied to Quintiles by Sponsor, and Sponsor
         shall comply with all current legislation and regulations concerning
         the shipment of substances by the land, sea or air.

19.0     FORCE MAJEURE. In the event either party shall be delayed or hindered
         in or prevented from the performance of any act required, hereunder by
         reasons of strike, lockouts, labor troubles, inability to procure
         materials or services, failure of power or restrictive government or
         judicial orders, or decrees, riots, insurrection, wear, Acts of God,
         inclement weather or other reason or cause beyond that party's control,
         then performance of such act (except for the payment of money owed)
         shall be excused for the period of such delay.

20.0     NOTICES AND DELIVERIES. Any notice required or permitted to be given
         hereunder by either party hereunder shall be in writing and shall be
         deemed given on the date received if delivered personally or by a
         reputable overnight delivery service, or three (3) days after the date
         postmarked if sent by registered or certified mail, return receipt
         requested, postage prepaid to the following addresses:

         If to Quintiles.                               If to Sponsor:

         Quintiles, Inc.                                Cubist Pharmaceuticals
         5927 South Miami Boulevard                     24 Emily Street
         Duel sane, NC 27703                            Cambridge, MA 02139
         Attention: Michael P. Motto, Ph.D.             Attention: Karen Brennan
         Vice President                                 Clinical Trial Manager

                                       18
<PAGE>

         With a copy to:                                With a copy to:

         Quintiles Transnational                        Irina R. Franklin
         Legal Department                               Executive Director
         P.O. Box 13 979                                Business Development
         Research Triangle Park,                        Cubist Pharmaceuticals
         North Carolina 27709-3979                      24 Emily Street
         Attention: John Russell                        Cambridge, MA 02139

         If Sponsor delivers, ships, or mails materials or documents to
         Quintiles, or requests that Quintiles deliver, ship, or mail materials
         or documents to Sponsor or to third parties, then the expense and risk
         of loss for such deliveries, shipments, or mailings shall be borne by
         Sponsor, provided that Quintiles followed Sponsor's written
         instructions for the materials that were delivered, shipped, or mailed.
         Quintiles disclaims any liability for the actions or omissions of third
         party delivery services or carriers.

21.0     INSURANCE. Each party will maintain, for the duration of this
         Agreement, insurance in an amount reasonably adequate to cover its
         obligations hereunder, and, upon request, each party will provide to
         the other party a certificate of insurance showing that such insurance
         is in place.

22.0     INFLATION ADJUSTMENTS. Where services in a Work Order are provided by
         Quintiles over multiple calendar years, Quintiles may increase its fees
         at the beginning of each calendar year to reflect increases in
         Quintiles' business costs on a prospective basis only. Quintiles'
         overall cost increase for the next twelve (12) month period shall not
         exceed the percentage charge in the wages/earnings survey as published
         in the Economist (or as reported at WWW.ECONOMIST.COM) or the
         equivalent inflation index of the country where services are performed
         over the preceding twelve (12) month period.

                                       19
<PAGE>

23.0     BINDING AGREEMENT AND ASSIGNMENT. Except as stated above in Section 17,
         neither party may assign any of its rights or obligations under this
         Agreement to any party without the express, written consent of the
         other party, provided, however, that without such consent, either party
         may assign this Agreement in connection with the transfer or sale of
         all or substantially all of its assets, stock or business, or its
         merger with another entity, provided further, however, the assignee has
         the financial ability to fulfill assignor's obligations hereunder.
         Subject to the foregoing, this Agreement shall be binding upon, inure
         to the benefit of and be enforceable by the parties and their
         respective successors and permitted assigns.

24.0     CHOICE OF LAW, WAIVER AND ENFORCEABILITY. This Agreement shall be
         construed, governed, interpreted, and applied in accordance with the
         laws of the Commonwealth of Massachusetts, exclusive of its conflicts
         of law provisions. The failure to enforce any right or provision herein
         shall not constitute a waiver of that right or provision. Any waiver of
         a breach of a provision shall not constitute a waiver of any subsequent
         breach of that provision. If any provisions herein are found to be
         unenforceable on the grounds that they are overly broad or in conflict
         with applicable laws, it is the intent of the parties that such
         provisions be replaced, reformed or narrowed so that their original
         business purpose can be accomplished to the extent permitted by law,
         and that the remaining provisions shall not in any way be affected or
         impaired thereby.

25.0     SURVIVAL. The rights and obligations of Sponsor and Quintiles, which by
         intent or meaning have validity beyond such termination (including, but
         not limited to, rights with respect to inventions, confidentiality,

                                       20
<PAGE>

         discoveries and improvements, indemnification and liability
         limitations) shall survive the termination of this Agreement or any
         Work Order.

26.0     ARBITRATION. Any controversy or claim arising out of or relating to
         this Agreement or the breach thereof may be settled by arbitration
         administered by the American Arbitration Association ("AAA") under its
         Commercial Arbitration Rules, and judgment on the award rendered by the
         arbitrator shall be binding and may be entered in any court having
         jurisdiction thereof. If arbitration is demanded by Quintiles, such
         arbitration shall take place in Cambridge, Massachusetts and if
         demanded by Sponsor, in Durham, North Carolina. Such arbitration shall
         be conducted in English by one arbitrator mutually acceptable to the
         parties selected in accordance with AAA rules. The arbitrator shall not
         have the power to award any punitive damages or any damages excluded by
         this Agreement.

27.0     ENTIRE AGREEMENT, HEADINGS AND MODIFICATION. This Agreement, together
         with the applicable Work Orders, contains the entire understandings of
         the parties with respect to the subject matter herein, and supersedes
         all previous agreements (oral and written), negotiations and
         discussions. The descriptive headings of the sections of this Agreement
         are inserted for convenience only and shall not control or affect the
         meaning or construction of any provision hereof. Any modifications to
         the provisions herein must be in writing and signed by the parties.

                                       21
<PAGE>

         IN WITNESS WHEREOF, THIS AGREEMENT has been executed by the parties
hereto through their duly authorized officers on the date(s) set forth below.

                      ACKNOWLEDGED, ACCEPTED AND AGREED TO:

QUINTILES, INC.                             CUBIST PHARMACEUTICALS, INC.

By:  /s/ MICHAEL P. ARLOTTO                 By:  /s/ SCOTT M. ROCKLAGE
   ----------------------------------          ---------------------------------

Print Name:  MICHAEL P. ARLOTTO, PH.D.      Print Name:  SCOTT M. ROCKLAGE
           ---------------------------                 -------------------------

Title:  VICE PRESIDENT                      Title:  CEO
      -------------------------------              -----------------------------

Date:  4/24/01                              Date:  4/25/01
     --------------------------------              -----------------------------

FEDERAL ID# 56-1323952

                                       22

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00028-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00028-of-00352.parquet"}]]