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                                                                    Exhibit 10.7

                              CONSULTING AGREEMENT

         THIS CONSULTING AGREEMENT (the "Agreement"), made this 18th day of
August, 2004, is entered into by Charles River Laboratories International, Inc.,
with its principal place of business at 251 Ballardvale Street, Wilmington,
Massachusetts 01887 (the "Company"), and Mr. Dennis R. Shaughnessy, an
individual residing at, 92 Old Right Road, Ipswich, Massachusetts 01938 (the
"Consultant").

                                  INTRODUCTION

         The Company desires to retain the services of the Consultant and the
Consultant desires to perform certain services for the Company. The Company
acknowledges that the Consultant will be serving under a faculty appointment at
Northeastern University's College of Business Administration during the
consulting period, and accordingly his services to the Company will be limited
by the terms of his appointment. In consideration of the mutual covenants and
promises contained herein and other good and valuable consideration, the receipt
and sufficiency of which is hereby acknowledged, the parties agree as follows:

1.   SERVICES. The Consultant agrees to perform consulting services to and for
     the Company in the area of corporate development, and more specifically in
     the identification, development and negotiation of merger and acquisition
     opportunities in support of the Company's executive responsible for the
     corporate development function, as may be reasonably requested from time to
     time by the Company's Chief Executive Officer. Consultant's principal
     engagement will be the project specified on EXHIBIT A. Such services will
     be provided on a mutually agreeable schedule, and shall not exceed four
     days per month during the academic year (September through April).
     Consultant will be provided with reasonable and appropriate out-of-pocket
     expense reimbursement by CRL where necessary for Consultant to deliver
     the required services. Any travel required will be subject to Consultant's
     reasonable consent. Charles River will make limited office space,
     including appropriate IT capability, available as needed for the conduct
     of any consulting services requested by CRL not referenced in Exhibit A.
     Notwithstanding the foregoing, to the extent the Company wishes to retain
     Consultant from time to time to provide legal services to or on behalf of
     the Company, such services would be provided by Consultant on a negotiated
     fee-for-service basis independent of the compensation provided hereunder
     for corporate development consulting services.

2.   TERM. This Agreement shall have an effective date set forth on the
     signature page hereto, but services shall be provided beginning January 1,
     2005, and shall continue through the period ending July 28, 2006 (such
     period being referred to as the "Consultation Period"), unless sooner
     terminated in accordance with the terms hereof. The parties may thereafter
     agree to extend the period of the Consulting Agreement, but only by mutual
     consent and otherwise on terms satisfactory to the Company.

3.   COMPENSATION.

     3.1  CONSULTING FEES. During the Consultation Period, the Company shall pay
          to the Consultant a consulting fee of $100,000 per year, payable in
          equal bi-weekly installments. This equates to aggregate consulting fee
          payments of approximately $150,000 for the anticipated 18-month
          consulting period.

     3.2  BENEFITS. In his capacity as a consultant, the Consultant shall
          continue to participate in CRL's medical and dental plans under the
          current family coverage arrangement, on the same basis as he would
          have if he was an executive officer of the Company during this period,
          with CRL paying 100% of costs associated with COBRA coverage during
          the Consultation Period.

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4.   TERMINATION.

          This Agreement shall automatically terminate in the event of:

          (i)   the Consultant's death;

          (ii)  fraud, dishonesty, willful malfeasance, or gross negligence on
                the part of the Consultant in connection with his performance of
                the services to be provided pursuant hereto;

          (iii) the conviction of the Consultant of, or the entry of a pleading
                of guilty by the Consultant to, any crime involving moral
                turpitude or any felony;

          (iv)  the disability of the Consultant; or

          (v)   the commission of an intentional act of false and misleading
                public disparagement of CRL by the Consultant.

          As used in this Agreement, the term "disability" shall mean the
inability of the Consultant, due to physical or mental disability, for a period
of 90 days, whether or not consecutive, during a 360-day period to perform the
services to be provided pursuant to this Agreement. A determination of
disability shall be made by a physician satisfactory to both the Consultant and
the Company; provided that if the Consultant and the Company do not agree on a
physician, the Consultant and the Company shall select a physician and these two
together shall select a third physician, whose determination as to disability
shall be binding on all parties.

         In the event of termination for any of the reasons set forth above, the
Consultant (or, if applicable, his estate) shall be entitled to payment for
services performed and expenses paid or incurred prior to the effective date of
termination. Such payments shall constitute full settlement of any and all
claims of the Consultant of every description against the Company.
Notwithstanding the foregoing, the Company may terminate this Agreement,
effective immediately upon receipt of written notice, if the Consultant breaches
or threatens in writing to breach any provision of Section 6.

5.   COOPERATION. The Consultant shall diligently perform his obligations under
     this Agreement. The Company shall provide such access to its information
     and property as may be reasonably required in order to permit the
     Consultant to perform his obligations hereunder.

6.   CONFIDENTIAL INFORMATION. The Consultant will not disclose, except as set
     forth herein, any confidential or proprietary information of the Company
     during the Consultation Period and for an 18-month period thereafter.
     Confidential or proprietary information shall not include any information
     which becomes generally known or available to the public other than as a
     result of a disclosure by the Consultant. The Consultant may disclose any
     such information if compelled by any state or Federal law or regulation, or
     to any employees, directors, officers, advisors or representatives of the
     Company, as the Consultant deems necessary or appropriate.

7.   INDEPENDENT CONTRACTOR STATUS. The Consultant shall perform all services
     under this Agreement as an "independent contractor" and not as an employee
     or agent of the Company. The Consultant is not authorized to assume or
     create any obligation or responsibility, express or implied, on behalf of,
     or in the name of, the Company or to bind the Company in any manner.

8.   NOTICES. All notices required or permitted under this Agreement shall be in
     writing and shall be deemed effective upon deposit in the United States
     Post Office, addressed to the other party at the address shown above, or at
     such other address or addresses as either party shall designate to the
     other in accordance this Section 8.

9.   ENTIRE AGREEMENT. This Agreement, together with a Letter Agreement of even
     date herewith and the Change in Control Severance Agreement referenced
     therein, together constitute the entire agreement between the parties and
     supersedes all prior agreements and understandings, whether written or
     oral, relating to the subject matter of this Agreement. In the event of a
     conflict between this Agreement and the Letter Agreement, the terms of the
     Letter Agreement shall prevail. This Agreement may be amended or modified
     only by a written instrument executed by both the Company and the
     Consultant. This Agreement may not be assigned by the Company without
     Consultant's prior consent. This Agreement shall be

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binding upon any successor to the Company that might result from a merger or
other transaction.

10.  GOVERNING LAW. This Agreement shall be construed, interpreted and enforced
     in accordance with the laws of the Commonwealth of Massachusetts
     (regardless of its, or any other jurisdiction's choice of law rules).

11.  SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon, and inure to
     the benefit of, both parties and their respective successors and assigns,
     including any corporation with which, or into which, the Company may be
     merged or which may succeed to its assets or business; provided, however,
     that the obligations of the Consultant are personal and shall not be
     assigned by him.

12.  MISCELLANEOUS.

     12.1  No delay or omission by either party in exercising any right under
           this Agreement shall operate as a waiver of that or any other right.
           A waiver or consent given by either party on any one occasion shall
           be effective only in that instance and shall not be construed as a
           bar or waiver of any right on any other occasion.

     12.2  In the event that any provision of this Agreement shall be invalid,
           illegal or otherwise unenforceable, the validity, legality and
           enforceability of the remaining provisions shall in no way be
           affected or impaired thereby.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement
effective as of the day and year set forth above.

CHARLES RIVER LABORATORIES                   CONSULTANT
INTERNATIONAL, INC.

BY:                                          BY:

----------------------------------           -----------------------------------
James C. Foster                              Dennis R. Shaughnessy
Chairman, President & CEO

                                             EFFECTIVE DATE:
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                                                                  EXHIBIT 10.11

                          INVERESK RESEARCH GROUP, INC.
                             2002 STOCK OPTION PLAN

                                  OPTION AWARD

     OPTION AWARD made by Inveresk Research Group, Inc., a Delaware corporation
(the "Company") in favor of the person named on the signature page hereof (the
"Optionee") pursuant to the Inveresk Research Group, Inc. 2002 Stock Option Plan
(the "Plan") (capitalized terms used but not otherwise defined herein shall have
the respective meanings ascribed to them in the Plan);

     1.   GRANT OF STOCK OPTION.

     The Company hereby grants the Optionee an option (the "Option") to purchase
the number of shares of Common Stock set forth on the signature page of this
document, on the terms and subject to the conditions set forth in this Award and
the Plan.

     2.   OPTION PRICE.

     The Option Price per Share shall be as set forth on the signature page of
this document.

     3.   INITIAL EXERCISABILITY.

     Unless otherwise provided on an annex to this Option Award, subject to
paragraph 5 below, the Option, to the extent that there has been no termination
of the Optionee's employment or other service with the Company and the Option
has not otherwise expired or been forfeited, shall become exercisable one year
after the date of grant of the Option, at which time up to one-third of the
Shares covered by the Option may be acquired upon exercise. On each of the
second and third anniversaries of issuance, the Option shall become exercisable
as to an additional one-third of the underlying Shares.

     4.   EXERCISABILITY UPON AND AFTER TERMINATION OF OPTIONEE.

     (a)  If the Optionee's employment or other service with the Company and its
          Subsidiaries is terminated other than by (i) voluntary resignation of
          the Optionee, (ii) termination by the Company for Cause, or (iii)
          termination by reason of death, Retirement or Disability, no exercise
          of the Option may occur after the expiration of the three-month period
          following the termination, or if earlier, the expiration of the term
          of the Option as provided under paragraph 5 below.

     (b)  If the Optionee's employment or other service with the Company and its
          Subsidiaries terminates due to the death, Retirement or Disability of
          the Optionee, the Option may be exercised until the earlier of (i) one
          year from the date of termination of the employment or other service
          of the Optionee, or (ii) the date on which the term of the Option
          expires as provided under paragraph 5 below.

     (c)  Notwithstanding any other provision of this Option Award, if (i) the
          Optionee's employment or other service is terminated by the Company or
          a Subsidiary for Cause or (ii) the Optionee terminates employment with
          the Company and its Subsidiaries other than by reason of death,
          Retirement or Disability, the Option, to the extent then unexercised,
          shall thereupon cease to be exercisable and shall be forfeited
          forthwith.

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     (d)  No Option (or portion thereof) which had not become exercisable at the
          time of termination of employment shall ever be or become exercisable.
          No provision of this paragraph 4 is intended to or shall permit the
          exercise of the Option to the extent the Option was not exercisable at
          the time of termination of employment.

     5.   TERM.

     Unless earlier forfeited, the Option shall, notwithstanding any other
provision of this Option Award, expire in its entirety upon the tenth
anniversary of the date hereof. The Option shall also expire and be forfeited at
such earlier times and in such circumstances as otherwise provided hereunder or
under the Plan.

     6.   CONDITIONS TO EXERCISE.

     Any purported exercise of this Option shall only be treated as a valid
exercise of this Option if either: (a) a check made payable to the Optionee's
employer for an aggregate amount equal to all taxation and/or social security or
medicare contributions (if not previously paid by the Optionee or deducted from
the Optionee's remuneration), which the Optionee's employer may be required to
pay under Canadian, provincial or local legislation in respect of the relevant
exercise of this Option and in respect of the grant of this Option, either
accompanies the relevant notice of exercise or is received by the Optionee's
employer within three days following the receipt of the relevant notice of
exercise and such check is cleared through the Optionee's bank account within
seven days following its presentation by the Optionee's employer; or (b)
arrangements satisfactory to the Optionee's employer have been made for the
payment in cleared funds by the Optionee to the Optionee's employer within 30
days of the relevant exercise of this Option of an amount equal to all taxation
and/or social secuirty or medicare contributions (if not previously paid by the
Optionee or deducted from the Optionee's remuneration) which the Optionee's
employer may be required to pay under Canadian, provincial or local legislation
in respect of the relevant exercise of this Option and in respect of the grant
of this Option.

     7.   MISCELLANEOUS.

     (a)  THIS OPTION AWARD SHALL BE GOVERNED BY THE LAWS OF THE STATE OF
          DELAWARE, WITHOUT REFERENCE TO PRINCIPLES OF CONFLICT OF LAWS. The
          captions of this Option Award are not part of the provisions hereof
          and shall have no force or effect. This Option Award may not be
          amended or modified except by a written agreement executed by the
          parties hereto or their respective successors and legal
          representatives. The invalidity or unenforceability of any provision
          of this Option Award shall not affect the validity or enforceability
          of any other provision of this Option Award.

     (b)  The Committee may make such rules and regulations and establish such
          procedures for the administration of this Option Award as it deems
          appropriate. Without limiting the generality of the foregoing, the
          Committee may interpret this Option Award, with such interpretations
          to be conclusive and binding on all persons and otherwise accorded the
          maximum deference permitted by law. In the event of any dispute or
          disagreement as to the interpretation of this Option Award or of any
          rule, regulation or procedure, or as to any question, right or
          obligation arising from or related to this Option Award, the decision
          of the Committee shall be final and binding upon all persons.

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     (c)  All notices hereunder shall be in writing, and if to the Company or
          the Committee, shall be delivered to the Company or mailed to its
          principal office, addressed to the attention of the Chief Financial
          Officer; and if to the Optionee, shall be delivered personally, sent
          by facsimile transmission or mailed to the Optionee at the address
          appearing in the records of the Company. Such addresses may be changed
          at any time by written notice to the other party given in accordance
          with this paragraph 7(c).

     (d)  The failure of the Optionee or the Company to insist upon strict
          compliance with any provision of this Option Award or the Plan, or to
          assert any right the Optionee or the Company, respectively, may have
          under this Option Award or the Plan, shall not be deemed to be a
          waiver of such provision or right or any other provision or right of
          this Option Award or the Plan.

     (e)  The Optionee agrees that, at the request of the Committee, the
          Optionee shall represent to the Company in writing that the Shares
          being acquired are acquired for investment only and not with a view to
          distribution and that such Shares will be disposed of only if
          registered (or, if applicable, qualified) for sale under the
          Securities Act and any other applicable laws of any of the provinces
          or territories of Canada or if there is an available exemption for
          such disposition under the Securities Act and any other applicable
          laws of any of the provinces or territories of Canada. The Optionee
          expressly understands and agrees that, in the event of such a request,
          the making of such representation shall be a condition precedent to
          receipt of Shares upon exercise of the Option.

     (f)  Nothing in this Option Award shall confer on the Optionee any right to
          continue in the employ or service of the Company or its Subsidiaries
          or interfere in any way with the right of the Company or its
          Subsidiaries to terminate the Optionee's employment or service at any
          time.

     (g)  This Option Award and the Plan contain the entire agreement between
          the parties with respect to the subject matter hereof and supersedes
          all prior agreements, written or oral, with respect thereto.

     IN WITNESS WHEREOF, the Company has caused this Option Award to be duly
executed.

                                             INVERESK RESEARCH GROUP, INC.

                                             By:

                                             Name:   Walter S Nimmo

                                             Title:     Chief Executive Officer

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                                   OPTION DATA

Name of Optionee:

Number of shares covered by the Option:

Exercise Price:                          per share

Date:

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