Document:

<PAGE>

                                                                    Exhibit 10.5
                                                                    ------------
EARTHWATCH INCORPORATED

                                    Contract
                                      for
                              Engineering Services
                                    between
                            Earthwatch Incorporated
                                      and
                                Ball Aerospace &
                            Technologies Corporation

                              Contract #9602-0117

         EarthWatch Incorporated: "An Imaging and Information Company"
-------------------------------------------------------------------------------
               1900 Pike Road, Longmont, Colorado USA 80501-6700
                      Tel: 303.682.3800 Fax: 303.682.3848
<PAGE>

                                                  Contract #9602-0117

                       Table of Contents

Article 1      Services

Article 2      Price

Article 3      Payment

Article 4      Period of Performance

Article 5      Warranty

Article 6      Independent Contractor

Article 7      Indemnification

Article 8      Proprietary Information

Article 9      Access

Article 10     Delegation of Responsibility

Article 11     Force Majeure

Article 12     Termination

Article 13     Applicable Laws

Article 14     Arbitration

Article 15     Liability

Article 16     Assignment

Article 17     Entire Agreement

Article 18     No Third Party Beneficiaries

Article 19     Severability

                                                                               2
<PAGE>

                                                             Contract #9602-0117

This Contract is entered into this 1st day of March, 1996, by and between
Earthwatch, Incorporated, a corporation organized and existing under the laws of
the State of Delaware, having an office at 1900 Pike Road, Longmont, Colorado,
80501, (hereinafter referred to as "Earthwatch"), and Ball Aerospace and
Technologies Corporation, a corporation organized and existing under the laws of
the State of Delaware, having an office at 10 Longs Peak Drive, Broomfield,
Colorado, 80021 (hereinafter referred to as "BATC").

                                  WITNESSETH
                                  ----------

WHEREAS, Earthwatch has a need for engineering and technical management support
for integration and test of privately owned satellite remote sensing systems,

WHEREAS, BATC is willing to provide the engineering and technical management
support to assist Earthwatch's technical staff,

WHEREAS, BATC has agreed with Earthwatch to provide technical assistance to
Earthwatch for certain consideration,

NOW, THEREFORE, in consideration of the mutual premises and covenants herein
contained, the parties hereby agree as follows:

Article 1 Services
------------------

BATC will provide and Earthwatch will pay for the engineering and technical
management support required to assist Earthwatch in the integration and test of
satellite remote sensing systems throughout the period of performance and in
accordance with the terms and conditions of this contract. Such services shall
be performed by individuals as employees of BATC, an independent contractor.
BATC shall not provide Services under this Agreement, which are performed by its
employees, in jurisdictions where such employees have not been admitted to
practice such professional services or otherwise do not have a requisite
professional license or certification. BATC shall determine both the staffing
required and the particular personnel assigned to perform the Services. The work
contemplated to be performed by BATC shall be at or about the Earthwatch
facilities located in California and Colorado.

                                                                               3
<PAGE>

                                                  Contract #9602-0117

Article 2 Price
---------------

The price of the Services is exclusive of all sales, use, value added, excise,
privilege, personal property or other taxes or duties occasioned by the use of
the Services.

2.1  Labor
----------

All Labor charges shall be at BATC's actual labor costs plus burdens and profit
at eight (8) percent. The following hourly rates represent the average selling
price per labor hour for each of the available labor categories:

<TABLE>
<CAPTION>
Engineering                       Production & Test
-------------------------------   -------------------------
Position          Avg Hrly Rate   Position    Avg Hrly Rate
--------          -------------   --------    -------------
<S>               <C>             <C>         <C>
Sr Mqr            $118.00         Sr Mgr            $113.00
Mgr               $ 98.00         Mgr               $ 95.00
Pr Eng'r          $103.00         Pr Eng'r          $100.00
Sr Eng'r          $ 83.00         Sr Eng'r          $ 88.00
Eng'r/TS2         $ 68.00         Eng'r/TS2         $ 68.00
Eng'r/TS1         $ 53.00         Eng'r/TS1         $ 57.00
Sr Adm/Sup        $ 75.00         Sr Adm/Sup        $ 73.00
Adm/Sup2          $ 54.00         Adm/Sup2          $ 63.00
Adm/Supl          $ 41.00         Adm/Supl          $ 44.00
Sr Tech           $ 47.00         Sr Tech           $ 52.00
Tech              $ 35.00         Tech              $ 36.00
Sr Insp           $ 45.00         Sr Insp           $ 44.00
Insp              $ 30.00         Insp              $ 31.00
Sr Dr/Gr          $ 46.00         Sr Plnr           $ 48.00
Sr Plnr           $ 46.00         Sr Mach           $ 55.00
Plnr              $ 36.00         Mach              $ 34.00
Sr Cler           $ 37.00         Sr Cler           $ 33.00
Cler              $ 31.00         Cler              $ 29.00
Pr Ass'y          $ 32.00

Sample Calculations (Engineering Category)
-------------------------------------------------
Sr Mgr                5 hrs x $118/hr = $590.00
Sr Eng'r               2 hrs x $83/hr = $166.00
Tech                  2.5 hrs x $35/hr = $87.50
-------------------------------------------------
                             Total = $843.50
</TABLE>

                                                                               4
<PAGE>

                                                  Contract #9602-0117

2.2  Materials
--------------

All Material charges shall be at BATC's actual cost plus burdens at 143 percent.
Profit shall not be included in Material charges.

Sample Calculations:
     3 electronic transistors @  $7.50 = $22.50
                                       X 1.43 burden
                                       ------
                                       $32.18

2.3  Other Direct Costs (ODC)
-----------------------------

ODC charges such as expenditures for telephone, mailing, computer time and
miscellaneous expenses shall be charged at BATC's actual cost plus burdens at
126 percent. Profit shall not be included in ODC charges.

2.3.1  Travel

Travel costs including airfare, automobile rental, lodging, meals, and
miscellaneous expense will be charged at BATC's actual costs as defined in BATC
Directive and Procedure No. D & P 10.03, dated May 1, 1992 as amended, plus
burdens at 126 percent. Profit will not be included in travel charges.

Article 3  Payment
------------------

Payment will be made by Earthwatch within net 30 days after the date of BATC's
monthly invoice to:

          Ball Corporation
          10 Longs Peak Drive
          Broomfield, CO 80021

Article 4 Period of Performance
-------------------------------

The term of this Contract is from 1 March 1996 through 31 December 1996. Any
work requested that will require performance beyond this date will require a
written amendment to this contract.

                                                                               5
<PAGE>

                                                             Contract #9602-0117

Article 5  Warranty
-------------------

BATC AGREES TO PERFORM ITS SERVICES WITH THAT STANDARD OF CARE AND GOOD FAITH AS
IT USES IN PERFORMING SERVICES FOR ITS OWN ACCOUNT. THE FOREGOING WARRANTY IS IN
LIEU OF ALL OTHER WARRANTIES, GUARANTEES, DUTIES OR OBLIGATIONS, WHETHER
EXPRESSED, IMPLIED OR STATUTORY, ANY REPRESENTATION OR WARRANTY AS TO
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARISING OUT OF THIS CONTRACT
OR THE SERVICES.

Article 6  Independent Contractor
---------------------------------

BATC shall not and shall not be deemed to, as a result of the performance of the
work, supervise, direct or have control over the performance by Earthwatch or
its lower tier subcontractors (if any) and vendors (if any) nor shall BATC have
authority over or responsibility for means, methods, techniques, sequences or
procedures of work selected by Earthwatch or its subcontractors and vendors or
for any failure to comply with any contract requirements, laws, regulations,
rules, ordinances or codes applicable to Earthwatch's work. BATC does not
guarantee the performance of work by Earthwatch, its subcontractors and vendors;
Earthwatch shall be solely responsible for the performance of its work in
accordance with Earthwatch's contract with its customers and for the performance
of Earthwatch's subcontractors and vendors in their respective contracts with
Earthwatch.

Article 7  Indemnification
--------------------------

Earthwatch recognizes that it is solely responsible for its own performance, the
performance of its subcontractors and any other consultants with respect to the
Earthwatch business activities or any other use which may be made of the work
furnished hereunder. Earthwatch hereby waives any claim it may have against
BATC, its officers, directors, contractors, subcontractors, employees and
agents, and agrees to indemnify and save BATC, its officers, directors,
contractors, subcontractors, employees, and agents harmless from any and all
claims, losses, lawsuits, damages, costs or expenses including reasonable
attorneys' fees including without limitation claims by Earthwatch employees,
arising from or relating to:

(a)  the performance or nonperformance by BATC of the work or the furnishing by
     BATC of facilities, equipment or administrative and technical information
     or assistance hereunder, irrespective of whether such claim, loss, lawsuit,
     damage,

                                                                               6
<PAGE>

                                                  Contract #9602-0117

     cost or expense arises out of or is alleged to have arisen out of or caused
     by breach of warranty or otherwise, except in the case of BATC's gross
     negligence or willful misconduct;

(b)  the use by Earthwatch of any technical information, administrative
     assistance, consultations or advice furnished by BATC or its employees that
     infringes or is alleged to infringe any patents, copyrights or other
     intellectual property rights owned by third parties;

(c)  damage to property of BATC and its customers, and injuries, including fatal
     injury, to all persons arising out of or related to this Contract.

The provisions of this section shall survive rescission, termination, expiration
or cancellation of this Contract.

Article 8  Proprietary Information
----------------------------------

Earthwatch and BATC understand that data or information disclosed by either
party or any of its operating divisions to any employee during the performance
of this agreement may be deemed to be Proprietary and Confidential to the
disclosing party. Therefore, the parties undertake to treat and maintain such
data in strict secrecy and confidence.

Data and information generated by BATC under the terms of this contract shall be
considered Earthwatch Proprietary and marked accordingly. Earthwatch shall have
exclusive right to use this data for other markets. Exclusive of the data and
information generated under the terms of this agreement, Earthwatch and BATC
understand that certain other data disclosed by either party may be deemed
Proprietary and Confidential by that party.

This Article shall not restrict the use by either party of information which, as
established by written documentation, is substantially in its entirety (i)
publicly available from sources other than as a result of disclosure directly or
indirectly by either party, (ii) obtained on a nonconfidential basis from a
source other than the disclosing party which is entitled to disclose the
information and/or (iii) independently developed by the receiving party without
use of the other party's Proprietary data provided.

Both parties shall exercise all proper diligence and use every proper precaution
to prevent any other party from having access to Proprietary data provided,
however, that either party shall be entitled to disclose the Proprietary data to
responsible consultants, advisors, vendors and suppliers of equipment, software
and services who are necessary to carry out its business and the purposes of
this Agreement and who have entered into nondisclosure

                                                                               7
<PAGE>

                                                  Contract #9602-0117

agreements with the receiving party in a form no less restrictive that the terms
of this Article.

Both parties shall abide by all confidentiality obligations relating to third
party information that may be included in the Proprietary data disclosed to the
receiving party, provided that the receiving party is notified in writing or
otherwise becomes aware of such confidentiality obligations prior to the time
that the party fails to abide by such obligations, and shall indemnify and hold
the other harmless form and against all claims, damages, losses, costs and
expenses (including reasonable attorneys' fees) arising out of or alleged to
have arisen out of either party's failure to do so, provided that the other
party is notified in writing by the disclosing party or otherwise becomes aware
of such confidentiality obligations prior to the time of the failure to abide by
such obligations.

The provisions of this section shall survive rescission, termination, expiration
or cancellation of this Contract.

Notwithstanding any provision of this agreement, Earthwatch shall have the
exclusive right to use data and information developed by BATC for Earthwatch in
commercial markets as defined in the Property Transfer Agreement dated January
27, 1995 and BATC shall have the right to use such data and information for all
other uses and markets.

Article 9  Access
-----------------

Earthwatch agrees to grant access to representatives of BATC to its facilities
and its employees, agents and consultants to provide the services provided for
under this Agreement, if necessary.

Article 10 Delegation of Responsibilities
----------------------------------------

In consultation with Earthwatch, BATC may delegate its responsibilities and
obligations hereunder from time to time as may be required in its discretion,
but no such delegation shall operate to relieve either party from its
responsibility for the faithful performance of this Agreement.

                                                                               8
<PAGE>

                                                             Contract #9602-0117

Article 11  Force Majeure
-------------------------

BATC or Earthwatch, as appropriate, shall be excused for failure to perform any
part of this Agreement due to events beyond its control, including but not
limited to: fire, storm, flood, earthquake, explosion, accident, acts of public
enemy, riots and other civil disturbances, injunctions, transportation embargoes
or delays, acts of God, failure of performance of third parties necessary to
BATC's or Earthwatch's performance under this Agreement, or the laws or
regulations of the federal, state or local government or branch or agency
thereof; provided, however, no force majeure event shall excuse the obligation
of the party claiming the benefit of a force majeure event from paying the
applicable fees for any services provided by the other party.

Article 12 Termination
----------------------

Earthwatch may terminate BATC's assistance by giving thirty (30) days advance
written notice to BATC, specifying the effective date upon which BATC's services
are terminated. In such event, BATC shall be paid pursuant to the terms of this
Contract for (a) all work performed up to the effective date of such
termination, (b) for time and materials using the rates in Article 4 above,
which may be incurred by BATC after the effective date of termination
attributable to bringing BATC's work to an orderly conclusion. A proposal for
(b) above shall be submitted to Earthwatch within thirty (30) days of written
notification of termination; such proposal when added to the work accomplished
to date shall not exceed the total value of this Contract.

Article 13 Applicable Laws
--------------------------

This Contract shall be governed by and construed in accordance with the laws of
the STATE OF COLORADO, U.S.A.

Article 14 Arbitration
----------------------

Any dispute or controversy arising out of, in connection with or in relation to
this Contract will be determined and settled, at the election of either party
made within sixty (60) days of receipt of written notice of the existence of any
such dispute or controversy, by arbitration to be held in Denver, Colorado, in
accordance with the rules then prevailing of the American Arbitration
Association. Arbitration may be conducted by one arbitrator by mutual agreement
of the parties or by three arbitrators, if the parties cannot so agree, with
each party choosing one arbitrator and the chosen arbitrators choosing the
third. Any award rendered therein shall be final and binding upon BATC

                                                                               9
<PAGE>

                                                             Contract #9602-0117

and Earthwatch and may be entered thereon in the appropriate state court of the
State of Colorado for the City and County of Denver.

Article 15  Liability
---------------------

a)   The sole remedy of Earthwatch for any claim relating to the performance or
nonperformance of the Services or other obligations under this Contract shall be
a refund by BATC to Earthwatch of any charges or fees paid for the applicable
Services. It is expressly agreed that the Contract sets forth the sole and
exclusive remedies available to Earthwatch and that BATC's liabilities are
limited as set forth herein. BATC has neither granted nor assumed any other
warranties, guarantees, duties, liabilities or obligations, either express,
implied, statutory, at law or in equity.

b)   BATC shall, under no circumstances, be liable for special, incidental,
exemplary, punitive, or consequential damages, including, but not limited to,
loss of profit or anticipated revenue, interest, loss of use, loss by reason of
non-operation or service, cost of substitute materials or equipment,
nonconforming or defective goods or services furnished hereunder or other such
claims arising from any cause whatsoever, whether or not such loss or damage is
based in contract, warranty, tort (including negligence), strict liability,
indemnity or otherwise. Earthwatch shall indemnify and hold BATC harmless from
any such damages as may be claimed by any direct or indirect customer of
Earthwatch.

c)   The total liability of BATC for all claims of any kind, whether based in
contract, warranty, tort (including negligence), strict liability, indemnity or
otherwise, arising out of, connected with or resulting from BATC's performance
or breach of this Contract or from nonperformance of the goods or services
furnished under this Contract, shall in no event exceed the total consideration
for the goods and services furnished hereunder.

Article 16  Assignment
----------------------

Earthwatch shall not assign the Contract or any benefits arising therefrom
without the prior written consent of BATC. This provision against assignment
shall not apply to the sale or merger of either party with a third party.

Article 17  Entire Agreement
----------------------------

This Contract constitutes the entire agreement among the parties hereto with
respect to the subject matter hereof and supercedes and cancels all previous
agreements,

                                                                              10
<PAGE>

                                                  Contract #9602-0117

negotiations, commitments and/or representations made among the parties hereto
either oral or in writing. This Contract cannot be altered, amended, modified or
supplemented except by written instrument or instruments signed by respective
duly authorized representatives of the parties hereto.

Article 18  No Third Party Beneficiaries
----------------------------------------

Each of the provisions of this Agreement is for the sole and exclusive benefit
of the parties hereto assigned respectively, as their interests may appear, and
shall not be deemed for the benefit of any other person or entity or group of
persons or entities.

Article 19  Severability
------------------------

The provisions of this Contract shall be deemed to be severable, and any
invalidity of any provision of this Contract shall not affect the validity of
the remaining provisions of this Contract.

                                                                              11
<PAGE>

                                                 Contract #9602-0117

IN WITNESS WHEREOF, the parties hereto have caused this Contract to be executed
by their respective duly authorized representatives as of the date first above
written.

EARTHWATCH, INCORPORATED

By:/s/ Richard N. Herring            2/29/96
   ---------------------------       -------
       Richard N. Herring            Date
       Chief Executive Officer

BALL AEROSPACE & TECHNOLOGIES CORPORATION

By:/s/ E. L. Vande Noord              3/4/96
   --------------------------         ------
       E. L. Vande Noord              Date
       Senior Vice President
       General Manager

                                                                              12
<PAGE>

                                   AMENDMENT 1
                                       to
                               CONTRACT 9602-0117
                                    between
           EARTHWATCH, INC. AND BALL AEROSPACE AND TECHNOLOGIES CORP.
                                    for the
                              ENGINEERING SERVICES

This Amendment incorporates the following changes to the Contract. The changes
are identified by the relevant article number.

Article 2.1 is deleted in its entirety and replaced with the following:

2.1    Labor
------------

All labor charges shall be at BATC's actual labor costs plus burdens and profit
at eight percent (8%)

Article 2.2 is amended as follows:

2.2    Materials
----------------

All material charges shall be at BATC's actual cost plus burdens of 19 percent
(19%).

Sample calculations:

          3 electronic transistors @ $7.50 = $22.50
                            burden @   19% = $ 4.28
                                             ------
          Billable Amount                    $26.78

Article 4 is amended to extend the period of performance until December 31,
1997.

ARTICLE 4  Period of Performance
--------------------------------

The article is amended to extend the period of performance through 31 December
1997. The total period of performance now is from 1 March 1996 to 31 December
1997.

                                    1 of 2
<PAGE>

                                                              Contract 9602-0117
                                                                     Amendment 1
                                                                        02/24/97

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their respective duly authorized representatives as of Monday, February 24,
1997.

EARTHWATCH, INCORPORATED

By: /s/ Richard N. Herring
   -----------------------------                 -------------------------------
   Richard N. Herring                            Date: February 24, 1997
   Chief Executive Officer

BALL AEROSPACE SYSTEMS DIVISION

By: /s/ George Niquette                          2/28/97
   -----------------------------                 -------------------------------
   George Niquette                               Date
   Manager, Contracts

                                    2 of 2
<PAGE>

                                   AMENDMENT 2

                                       to

                               CONTRACT 9602-0117

                                    between

           EARTHWATCH, INC. AND BALL AEROSPACE AND TECHNOLOGIES CORP.

                                    for the

                              ENGINEERING SERVICES

This Amendment incorporates the following changes to the Contract. The changes
are identified by the relevant article number.

Article 4 is amended to extend the period of performance until December 31,
1998.

ARTICLE 4 PERIOD OF PERFORMANCE
-------------------------------

The article is amended to extend the period of performance through 31 December
1998. The total period of performance now is from 1 March 1996 to 31 December
1998.

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their respective duly authorized representatives as of Wednesday, February 4,
1998.

EARTHWATCH, INCORPORATED

By: /s/  Barbara S. Keller                      2/11/98
   -----------------------------                ------------------------------
                                                Date
BALL AEROSPACE SYSTEMS DIVISION

By: /s/ T.H. Lapotosky                          2/4/98
   -----------------------------                -------------------------------
   T.H. Lapotosky                               Date
   Director, Contracts &
   Government Compliance
<PAGE>

                                   AMENDMENT 3

                                       to

                               CONTRACT 9602-0117

                                    between

           EARTHWATCH, INC. AND BALL AEROSPACE AND TECHNOLOGIES CORP.

                                    for the

                             ENGINEERING SERVICES

This Amendment incorporates the following changes to the Contract.

               Page 4
               Page 5

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their respective duly authorized representatives as of Tuesday, February
17,1998.

EARTHWATCH, INCORPORATED

By: /s/ Barbara Keller                            3/6/98
   --------------------------------               ---------------------------
                                                  Date

BALL AEROSPACE SYSTEMS DIVISION

By: /s/ T.H. Lapotosky                            2/17/98
   --------------------------------               ---------------------------
   T.H. Lapotosky                                 Date
   Drector, Contracts &
   Government Compliance
<PAGE>

                                                             Contract #9602-0117
                                                                 Amendment No. 3

Article 2     Price
-------------------

The price of the Services is exclusive of all sales, use, value added, excise,
privilege, personal property or other taxes or duties occasioned by the use of
the Services.

2.1    Labor
------------

All labor charges shall be at BATC's actual labor costs plus burdens and profit
at eight (8) percent. The following hourly rates represent the average selling
price per labor hour for each of the available labor categories:

<TABLE>
<CAPTION>
1998 Labor Rates
---------------------------------------------------------------------------------------------------
Engineering                                       Production & Test

Position                         Avg. Hrly Rate   Position                           Avg. Hrly Rate
--------                         -------------    --------                           --------------
<S>                              <C>              <C>                                <C>
Senior Manager                      $142.23       Senior Manager                         $159.17
Manager                             $120.40       Manager                                $128.40
Principal Engineer                  $128.35       Principal Engineer                     $133.37
Senior Engineer                     $103.49       Senior Engineer                        $118.68
Engineer/Tech Spec 2                $ 82.24       Engineer/Tech Spec 2                   $ 91.61
Engineer/Tech Spec 1                $ 63.31       Engineer/Tech Spec 1                   $ 75.86
Senior Administrator/Supervisor     $ 92.67       Senior Administrator/Supervisor        $ 97.05
Administrator/Supervisor 2          $ 65.29       Administrator/Supervisor 2             $ 84.21
Administrator/Supervisor 1          $ 51.09       Administrator/Supervisor 1             $ 58.52
Senior Technician                   $ 61.56       Senior Technician                      $ 70.24
Technician                          $ 45.09       Technician                             $ 51.63
Senior Inspector                    $ 56.61       Senior Inspector                       $ 63.13
Inspector                           $ 39.60       Inspector                              $ 43.17
Senior Drafting/Graphics            $ 57.22       Senior Planner                         $ 65.34
Senior Planner                      $ 55.62       Senior Machinist                       $ 72.78
Planner                             $ 43.30       Machinist                              $ 52.54
Senior Clerical                     $ 45.16       Senior Clerical                        $ 48.65
Clerical                            $ 38.10       Clerical                               $ 39.04
</TABLE>

Sample Calculations (Engineering Category)
------------------------------------------
<TABLE>
<CAPTION>
                                     Hours                Rate                 Price
                                     -----                ----                 -----
<S>                                  <C>                <C>                  <C>
Senior Manager                          5               $142.23              $  711.16
Senior Engineer                         2               $103.49              $  206.98
Technician                            2.5               $ 45.09              $  112.73
                                      9.5                                    $1,030.87
-----------------------------------------------------------------------------------------------------
</TABLE>

                                    Page 4
<PAGE>

                                                             Contract #9602-0117
                                                                 Amendment No. 3

2.2    Materials
----------------

All material charges shall be at BATC's actual costs plus burdens at 115
percent. Profit shall not be included in Material charges.

Sample Calculations:

     3 Electronic Transistors @  $7.50     $22.50
     Burden Factor                1.15       1.15
                                           ------
                                           $25.88
2.3    Other Direct Costs (ODC)
-------------------------------

ODC charges such as expenditures for telephone, mailing, computer time and
miscellaneous expenses shall be charged at BATC's actual cost plus burdens at
124 percent. Profit shall not be included in ODC charges.

2.3.1   Travel

Travel costs including airfare, automobile rental, lodging, meals and
miscellaneous expenses will be charged at BATC's actual costs as defined in BATC
Directive and Procedures No. D&P 10.03, dated May 1, 1992 as amended, plus
burdens at 124 percent. Profit shall not be included in travel charges.

Article 3    Payment
--------------------

Payment will be made by EarthWatch within net 30 days after the date of BATC's
monthly invoice to:

          Ball Corporation
          10 Longs Peak Drive
          Broomfield, CO 80021

Article 4    Period of Performance
----------------------------------

The term of this Contract is from 1 March 1996 through 31 December 1998. Any
work requested that will require performance beyond this date will require a
written amendment to this contract.

                                    Page 5
<PAGE>

                                   AMENDMENT 4

                                       to

                               CONTRACT 9602-0117

                                    between

           EARTHWATCH, INC. AND BALL AEROSPACE AND TECHNOLOGIES CORP.

                                    for the

                              ENGINEERING SERVICES

This Amendment incorporates the following changes to the Contract.

               Page 5

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their respective duly authorized representatives as of Tuesday, February
17,1998.

EARTHWATCH, INCORPORATED

   /s/ Herbert F. Satterlee III                    1/15/99
By:___________________________________________     ________________
   Herbert F. Satterlee III                        Date

BALL AEROSPACE SYSTEMS DIVISION

   /s/ T.H. Lapotosky                              8/17/98
By:___________________________________________     ________________
   T.H. Lapotosky                                  Date
   Director, Contracts & Government Compliance
<PAGE>

                                  AMENDMENT 5

                                      to

                              CONTRACT 9602-0117

                                    between

          EARTHWATCH, INC. AND BALL AEROSPACE AND TECHNOLOGIES CORP.

                                    for the

                             ENGINEERING SERVICES

This Amendment incorporates the following changes to the Contract.

               Page 4, Article 2.1 "Labor"
               Page 5, Article 2.3 "Other Direct Costs (ODC)"
               Page 4, Article 4 "Period of Performance"

Entire Agreement. This Amendment, including the EXHIBITS hereto constitute the
entire understanding of the parties with respect to the subject matter of this
Agreement and supersedes all prior and contemporaneous agreements or
understandings. By signing this Amendment, each party represents to the other
that it has the authority to sign this Amendment and this Amendment is
enforceable against it in accordance with its terms.

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their respective duly authorized representatives.

EARTHWATCH, INCORPORATED

   /s/ Herbert F. Satterlee III                    01/25/99
By:___________________________________________     ________________
   Herbert F. Satterlee III                        Date

BALL AEROSPACE SYSTEMS DIVISION

   /s/ T.H. Lapotosky                              1/25/99
By:___________________________________________     ________________
   T.H. Lapotosky                                  Date
   Director, Contracts & Government Compliance
<PAGE>

Amendment No. 5
Contract #9602-0117
Page 2

2.1 Labor
---------

All Labor charges shall be a BATC's actual labor costs plus burdens and profit
at eight (8) percent. The following hourly rates represent the average selling
price per labor hour for each of the available labor categories:

1999 Labor Rates by Category with 1999 Applied pricing Rates

<TABLE>
<CAPTION>
                                    Avg. Hourly                                     Avg. Hourly
     Engineering Position               Rate        Production & Test Position          Rate
     --------------------               ----        --------------------------          ----
<S>                                 <C>            <C>                              <C>
Senior Manager                        $164.27      Senior Manager                     $196.24
Manager                               $149.90      Manager                            $170.75
Principal Engineer                    $147.81      Principal Engineer                 $178.15
Senior Engineer                       $119.14      Senior Engineer                    $142.46
Engineer/Tech. Spec 2                 $ 93.48      Engineer/Tech. Spec 2              $108.46
Engineer/Tech Spec. 1                 $ 73.23      Engineer/Tech. Spec 1              $ 89.86
Senior Administrator/Supervisor       $ 97.13      Senior Administrator/Supervisor    $115.27
Administrator/Supervisor 2            $ 77.20      Administrator/Supervisor 2         $ 98.02
Administrator/Supervisor 1            $ 62.97      Administrator/Supervisor 1         $ 74.13
Senior Technician                     $ 66.58      Senior Technician                  $ 83.77
Technician                            $ 52.85      Technician                         $ 59.79
Senior Inspector                      $ 64.56      Senior Inspector                   $ 77.34
Inspector                             $ 46.29      Inspector                          $ 55.31
Senior Drafting/Graphics              $ 69.23      Senior Planner                     $ 81.87
Senior Planner                        $ 61.87      Senior Machinist                   $ 91.89
Planner                               $ 51.50      Machinist                          $ 61.44
Senior Clerical                       $ 51.85      Senior Clerical                    $ 57.38
Clerical                              $ 40.46      Clerical                           $ 50.19
</TABLE>

Sample Calculations (Engineering Category)
<TABLE>
<CAPTION>
                               Hours               Rate                Price
                               -----               ----                -----
<S>                            <C>               <C>                 <C>
Senior Manager                    5              $164.27             $  821.35
Senior Engineer                   2              $119.14             $  238.28
Technician                      2.5              $ 52.85             $  132.12
                                ---                                  ---------
                                9.5                                  $1,191.75
</TABLE>

2.3.1 Travel
------------

Travel costs including airfare, automobile rental, lodging, meals, and
miscellaneous expense will be charged at BASD's actual costs as defined in BATC
Directive and Procedure No. D&P 10.3, dated May 1, 1992 as amended, plus burdens
at 126% plus profit at eight (8%) percent.

Article 4 - Period of Performance
---------------------------------

Change the first sentence to read: "The term of this Contract is from 1 March
1996 through 31 December 1999."
<PAGE>

                                   AMENDMENT 6
                                       to
                               CONTRACT 9602-0117
                                    between
           EARTHWATCH, INC. AND BALL AEROSPACE AND TECHNOLOGIES CORP.
                                    for the
                              ENGINEERING SERVICES

This Amendment incorporates the following changes to the Contract as changed by
Amendment 1 of 2 February 1997, Amendment 2 of 11 February 1998, Amendment 3 of
6 March 1998, Amendment 4 of 15 January 1999, and Amendment 5 of 25 January
1999. The changes are identified by the relevant article number. All other terms
not noted as changed by this Amendment remain in force.

Article 1 Services, add the following subsection:

1.1 Service Orders.

Service Orders are issued for the performance of work under this contract and
are incorporated into this Contract. Each service order will be dated, contain
anticipated start and completion dates, include a Statement of Work, a list of
deliverables, and a suggested funding profile. BATC's response is due within
five (5) working days of issue and not later than five (5) working days prior to
the start date to allow for a negotiation and agreement period. Each service
order will be mutually agreed on by signature of both parties prior to
completion and delivery.

Article 2 Price is amended as follows:

Article 2 Price.

All labor, material and other direct costs (ODC), including travel, shall be at
BATC's actual costs plus burdens, and profit at 8%. The guideline average
composite labor hour price is $138.00. This rate is for funding guidance and
will be updated periodically to reflect actual prices.

Article 4 Period of Performance is amended as follows:

Article 4 Period of Performance.

Extend the period of performance through 31 December 2000. The total period of
performance now is from 1 March 1996 to 31 December 2000.

                                    1 of 3
<PAGE>

                                                              Contract 9602-0117
                                                                     Amendment 6

Article 20 Changes is amended as follows:

Article 20 Changes.

Changes to this Contract or any of its Service Orders shall be in writing and
binding on the parties when signed by their respective authorized
representatives.

Article 20.1

EarthWatch may direct changes within the general scope of the Contract that
affect a Service Order.

Article 20.2

Changes that modify the completion, Statement of Work, or funding profile of a
Service Order will be negotiated between the parties and result in mutually
agreeable adjustments.

                                    2 of 3
<PAGE>

                                                              Contract 9602-0117
                                                                     Amendment 6

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their respective duly authorized representatives as of the date of the last
signature below.

EARTHWATCH INCORPORATED

   /s/ Shawn Thompson                            1/6/00
By:_________________________________________     _________________
                                                 Date

BALL AEROSPACE & TECHNOLOGIES CORP.
AEROSPACE SYSTEMS DIVISION

   /s/ Raul A. Rossell                           01/05/2000
By:_________________________________________     _________________
   Raul A. Rossell                               Date
   Manager of Contracts
   Commercial Space Operations

                                    3 of 3<PAGE>

                                                                    Exhibit 10.6
                                                                    ------------
                               February 26, 1999

                  Strategic Supplier Agreement By And Between
                             ITT Industries, Inc.
                    1919 West Cook Road, Ft. Wayne, Indiana

                                      And
                            EarthWatch Incorporated
                 1900 Pike Road, Longmont, Colorado USA 80501

This Strategic Supplier Agreement ("Agreement") is entered into by and between
ITT Industries, Inc. ("ITT"), an Indiana corporation, with a place of business
at 1919 West Cook Road, Fort Wayne, IN 46818 and EarthWatch Incorporated
("EarthWatch"), a Delaware corporation, with its principal place of business at
1900 Pike Road, Longmont, Colorado 80501.

WHEREAS, ITT and EarthWatch have entered into a separate agreement,  pursuant to
which ITT has committed to invest certain funds in EarthWatch as detailed in the
Investment Agreement to be signed in the near future; and

WHEREAS ITT possesses capabilities and expertise in the design and production of
custom designed and manufactured electro-optical Earth imaging spacecraft-borne
sensors; and

WHEREAS EarthWatch may have certain needs to acquire such sensors over the next
ten years;

NOW, THEREFORE, in consideration of the mutual covenants for ITT's investment
and other commitments, contained herein, the parties have agreed as follows:

1.   Definitions: For the purposes of this Agreement, the following terms shall
     have the respective meanings indicated below.

     1.1.  Best Value: The assessment by EarthWatch that a bona fide Solicited
           ----------
           Proposal in response to an EarthWatch RFP for a Sensor is in
           compliance in all material respects with such RFP and provides
           EarthWatch with an overall graded value representing Best Value as
           assessed reasonably and in good faith by EarthWatch. The assessment
           may include, but need not be limited to, cost, project schedule,
           practicality and feasibility of technical design, life cycle costs,
           reliability, estimated life, state of the art for Sensors, the use of
           specified subcontractors, and contract terms and conditions. Best
           Value, however, does not necessarily mean the lowest priced proposal.
           A Solicited Proposal submitted by ITT that satisfies the RFP's
           technical requirements (including schedule) and falls within or below
           EarthWatch's internal "should cost" range for the Sensor shall be
           considered to be Best Value.

                                       1
<PAGE>

     1.2.  Parties: EarthWatch and ITT.
           --------

     1.3.  Procurement of a Sensor: The purchase of a Sensor, either newly
           ------------------------
           manufactured or already existing, in response to an RFP, which
           ultimately results in title to the Sensor being transferred to
           EarthWatch or a wholly owned subsidiary of EarthWatch.

     1.4.  Request for Proposal (RFP): A written request by EarthWatch for
           --------------------------
           delivery of one or more Sensor(s). The RFP shall identify
           requirements for the Sensor based on EarthWatch's statement of work,
           shall specify a required delivery date, and shall state the terms and
           conditions associated with the procurement. The RFP shall include a
           Statement of Work that encompasses design (if required), manufacture,
           and delivery of the Sensor(s). The final content of an RFP, including
           Statement of Work, attachments, and the "should cost" analysis shall
           be the sole responsibility of EarthWatch.

     1.5.  Sensor: An electro-optical device that images the Earth from a
           ------
           spacecraft, encompassing all subsystems and components necessary for
           conversion of photons into digital electronic output for delivery to
           the spacecraft bus's wideband data system including optics, baffles,
           focal plane(s), sensor electronics, unique power supplies,
           calibration sources, optical covers, and built-in sensor thermal
           management systems, as well as any other subsystems or ancillary
           support equipment customarily provided with the type of sensor being
           procured. This definition of Sensor is intended to apply to what are
           normally considered "payload" instruments, and to exclude ancillary
           sensors normally part of a satellite bus, such as those used for
           attitude control.

     1.6.  Solicited Proposal: A proposal received in response to an EarthWatch
           ------------------
           Request for Proposal.

2.   Exclusive Provider of Sensors

     2.1.  EarthWatch agrees that ITT shall be the exclusive provider and Sensor
           systems integration prime contractor to EarthWatch of Sensors when
           EarthWatch procures a Sensor to fly on either a spacecraft procured
           by EarthWatch or to fly on a spacecraft owned or operated by another
           party. ITT in turn agrees to provide Sensor systems integration and
           other related services, and Solicited Proposals meeting EarthWatch's
           requirements, including that ITT provide Best Value in its proposals
           to provide Sensors to EarthWatch.

     2.2.  EarthWatch and ITT will cooperatively work to develop the concepts
           for the Sensors. ITT will be involved in all material aspects of the
           concept development and/or definition for the Sensors, including
           without limitation the "should cost" analysis for the Sensors, and in
           the development of all material elements for the resulting RFP. This
           includes insight and visibility into potential Sensor subsystem
           vendor identification by EarthWatch or ITT. As part of the concept
           development activity, EarthWatch will contract with ITT to cover cost
           items

                                       2
<PAGE>

           incurred during the concept development that ITT would not normally
           be incurring as part of ITT's own independent R&D, B&P, or other non-
           EarthWatch ongoing business. Notwithstanding the foregoing,
           EarthWatch shall have final control of the contents of any RFP
           resulting from this process. The RFPs and RFP exhibit or attachment
           documents, including the "should cost" analysis, that result from
           concept development process will be considered EarthWatch proprietary
           and confidential material for the purposes of Section 6.2, except to
           the extent specifically agreed upon by the parties; provided however,
           that this RFP information will be available to ITT and ITT's
           potential suppliers and subcontractors.

     2.3.  After completion of concept definition and requirements
           specification, when EarthWatch procures a Sensor, it will issue an
           RFP to ITT. The RFP will specify a reasonable time limit for the
           submission of Solicited Proposals; this time limit will normally be
           thirty (30) to forty-five (45) days, but may be extended by agreement
           of EarthWatch.

     2.4.  Within the response time identified in the RFP, or as extended by
           mutual agreement, ITT will respond with a proposal for delivery of
           the Sensor.

     2.5.  Should ITT furnish a Solicited Proposal that fails to satisfy the
           definition of Best Value, EarthWatch, after the process in Section 4
           is completed, if elected by ITT, shall have the right to direct that
           a subcontract(s) be entered into with another supplier(s) to procure
           Sensor subsystem(s), which subsystem(s) would then be integrated into
           the Sensor under ITT's Sensor systems integration prime contract.

     2.6.  Upon receipt of a Best Value proposal, EarthWatch and ITT shall enter
           into good faith negotiations to allow the issuance of a contract.

3.   Determination of Best Value - EarthWatch may, in good faith, use one or
     more fair, reasonable and objective methods appropriate to the particular
     procurement to support a determination of Best Value. Possible methods
     include:

     3.1.  Following submission of a Solicited Proposal by ITT, EarthWatch may
           require ITT to provide back-up data to a Solicited Proposal including
           cost data and subcontract data.

     3.2.  During concept development, the Parties may discuss with potential
           Sensor subsystem suppliers alternative technologies that may improve
           performance or lower costs. The results of these discussions will be
           shared with the other Party to allow ITT to enhance the value to be
           delivered to EarthWatch and facilitate the determination of Best
           Value by EarthWatch. In order to be in a position to verify the Best
           Value of ITT's Solicited Proposal, EarthWatch may, upon release of
           the RFP for the Sensor, solicit non-binding proposals from
           alternative Sensor subsystem suppliers with notification to ITT.
           Alternative proposals for the Sensor, however, may not be solicited.

4.   Remedy for Non-Best Value Proposals

                                       3
<PAGE>

     4.1.  Should EarthWatch reasonably and in good faith determine that the ITT
           Solicited Proposal does not offer Best Value, EarthWatch shall so
           inform ITT in writing within forty-five (45) days of receipt of the
           Solicited Proposal. Any determination by EarthWatch that the ITT
           Solicited Proposal does not represent or does not constitute Best
           Value needs to be based upon significant, as opposed to minor,
           technical considerations and/or a total price differential of at
           least the following: twenty percent (20%) in connection with RFPs for
           which the EarthWatch "should cost" analysis is $50 million or less;
           ten percent (10%) in connection with RFPs for which such "should
           cost" analysis is greater than $50 million but no more than $150
           million; and five percent (5%) in connection with RFPs for which such
           "should cost" analysis is more than $150 million. EarthWatch's
           notification will provide a clear, detailed statement of why the ITT
           Solicited Proposal does not offer Best Value, and offer good faith,
           constructive suggestions on how ITT could improve its proposal so
           that it does offer Best Value (including the possibility that ITT
           engage one or more specified subcontractors). In no event, however,
           will EarthWatch have any obligation to provide ITT with any
           information that EarthWatch receives on a confidential basis and
           under a duty or obligation of non-disclosure from other suppliers.
           Where suppliers exist whose inclusion as ITT subcontractors would
           result in the ITT Proposal offering Best Value, then EarthWatch's
           notification should state this fact and identify such suppliers.

     4.2.  Within twenty (20) days of receipt of an EarthWatch notification per
           (S)4.1, ITT may take any of the following actions:

           (i)   ITT may revise and resubmit the Solicited Proposal, which shall
                 represent a good faith effort on the part of ITT to satisfy the
                 requirements of a Best Value proposal and which EarthWatch will
                 then evaluate and consider as provided in (S)4.1;

           (ii)  ITT may inform EarthWatch that it declines to modify the
                 Solicited Proposal, in which case the provisions of (S)4.2.1
                 shall apply; or

           (iii) ITT may appeal EarthWatch's determination that a Solicited
                 Proposal does not represent Best Value in accordance with
                 (S)4.3.

     4.2.1 Upon notice of a second determination of Non-Best Value by
           EarthWatch, and following completion of the appeal process set forth
           in (S)4.3, it is agreed that ITT's Sensor prime contract will become
           a cost reimbursable contract with a 15% fixed fee. EarthWatch shall
           have the right to direct that a subcontract(s) be entered into with
           another supplier(s) to procure Sensor subsystem(s), which
           subsystem(s) would be integrated into the Sensor under ITT's Sensor
           systems integration prime contract.

     4.3.  For any determination by EarthWatch that an ITT Solicited Proposal
           does not provide Best Value, ITT may request in writing, within the
           time limits of Section 4.2 as applicable, an evaluation of
           EarthWatch's determination that the proposal

                                       4
<PAGE>

           does not represent Best Value. Such evaluation shall be submitted to
           a three person committee consisting of the then current EarthWatch
           CEO, an EarthWatch board member selected by ITT, and one Independent
           EarthWatch director selected by majority vote of Independent Earth
           Watch directors. For the purposes of this section, a director is
           Independent if he or she was not nominated, elected, or appointed by
           and has no association (as such term is defined in Rule 142(b)(2) to
           the Securities Act of 1933) with any party having any agreement with
           respect to the sale of goods to EarthWatch. ITT shall have a fair
           opportunity to make a presentation to this committee on why ITT
           believes that its Solicited Proposal constitutes Best Value. The
           finding of this committee shall be the definitive determination of
           Best Value, be rendered within fourteen (14) days by majority vote,
           and shall be transmitted to the EarthWatch board as a whole and
           recorded in the board minutes. If the committee finds that the
           proposal does represent Best Value, EarthWatch and ITT shall enter
           into a contract for the Sensor. If the committee finds that the
           proposal does not represent Best Value, then EarthWatch may proceed
           according to Section 2.5; provided that ITT shall have the one time
           right within 30 days of a decision to resubmit a revised proposal per
           (S)4.2.(i), and EarthWatch shall evaluate and consider the
           resubmitted proposal as provided in (S)4.1, with the provisions of
           Section 4.2 and this Section 4.3 again being applicable such second
           time.

5.   Term, Termination, Rights and Obligations Upon Termination - Section 5
     lists the conditions that constitute delay or default by either Party, the
     remedies available to each Party, the obligations of each Party, and the
     conditions for termination.

     5.1.  Term. This Agreement, unless terminated earlier, and subject to the
           ----
           provisions of this (S)5.1 herein below, shall continue for ten (10)
           years from the effective date of this Agreement. This Agreement,
           while effective, shall apply to all Sensors, the Procurement of which
           occurs or is commenced during the Term of the Agreement, whether or
           not the Sensor is intended to fly on a spacecraft during the Term of
           the Agreement; provided, however, that the Parties intend that this
           Agreement shall cover and apply to at least six (6) Sensors, and
           agree that the Term of this Agreement shall extend, and be extended,
           for up to five (5) additional years to the extent necessary or
           appropriate to encompass or apply to such six (6) Sensors. Except for
           a termination in accordance with (S)5.2 and (S)5.3, the provisions of
           this Agreement shall survive termination or expiration to the extent
           necessary or appropriate to give effect to the preceding sentence. At
           the termination of the Agreement, the obligations under (S)6.2 shall
           continue for five years.

     5.2.  Default by ITT: ITT is in default of this Agreement ("Default") if
           --------------
           ITT:

           5.2.1.  breaches any material provision of the Agreement, or any
                   resulting contract for a Sensor, and does not commence curing
                   such breach within forty-five (45) days of written notice
                   thereof, or if such breach is not capable of cure within such
                   forty-five (45) day period, undertake

                                       5
<PAGE>

                  and continue diligent efforts to cure, and cure such breach
                  within ninety (90) days; or

          5.2.2.  seeks protection under any bankruptcy, receivership, creditors
                  arrangement, composition or comparable proceeding, if any such
                  proceeding is instituted against ITT and is not dismissed
                  within sixty (60) days, or if ITT shall admit, before a court
                  of law, its inability to pay its debts as such debts become
                  due.

     5.3. Remedies for ITT Default: In the event of Default by ITT, EarthWatch
          ------------------------
          may terminate this Agreement and any resulting Sensor contract, and
          may pursue any remedies available under law, including the Uniform
          Commercial Code if applicable, and also including equitable remedies
          or relief such as (without limitation) specific performance, except
          that ITT will not be liable for any incidental, special, indirect, or
          consequential damages.

     5.4. Default by EarthWatch: EarthWatch is in default of this Agreement
          ---------------------
          ("Default") if EarthWatch:

          5.4.1.  breaches any material provision of the Agreement, or any
                  resulting contract for a Sensor, and does not commence curing
                  such breach within forty-five (45) days of written notice
                  thereof, or if such breach is not capable of cure within such
                  forty-five (45) day period, undertake and continue diligent
                  efforts to cure, and cure such breach within ninety (90) days;
                  or

          5.4.2.  seeks protection under any bankruptcy, receivership, creditors
                  arrangement, composition or comparable proceeding, or if any
                  such proceeding is instituted against EarthWatch and is not
                  dismissed within sixty (60) days, or if EarthWatch shall
                  admit, before a court of law, its inability to pay its debts
                  as such debts become due .

     5.5. Remedies for EarthWatch Default: In the event of Default by
          -------------------------------
          EarthWatch, ITT may terminate this Agreement and any resulting Sensor
          contract, and/or may pursue any remedies available under law,
          including the Uniform Commercial Code if applicable, and also
          including equitable remedies or relief such as (without limitation)
          specific performance, except that EarthWatch will not be liable for
          any incidental, indirect, special, or consequential damages.

6.   Miscellaneous Other Terms

     6.1. Use of ITT Systems as a Supplier:  During the Term of this Agreement,
          --------------------------------
          EarthWatch will agree to include ITT Systems, a division of ITT ("ITT
          Systems"), on its list of preferred suppliers for custom efforts in
          those areas in which EarthWatch is aware that ITT Systems has
          resources and expertise. Possible areas include, but are not limited
          to, work, support and/or services related to:

                                       6
<PAGE>

          .    Development of ground command and control systems;

          .    Spacecraft simulator development;

          .    Satellite scheduling and tasking software;

          .    Earth ground stations which EarthWatch might undertake or
               commence beyond QuickBird 1 and 2; and

          .    Launch services and processing support for EarthWatch's
               satellites and/or payloads which EarthWatch might undertake or
               commence beyond QuickBird 1 and 2.

          6.1.1.    As reasonable, EarthWatch will notify ITT Systems of, and
                    furnish ITT Systems on a timely basis with, any competitive
                    requests for proposals released by EarthWatch relating to
                    those scopes in which ITT Systems has competencies known to
                    EarthWatch. Requests relating to standard off-the-shelf
                    products and requests that do not represent an opportunity
                    for ITT Systems to receive an award will not be furnished to
                    ITT Systems. EarthWatch will consider ITT Systems for the
                    award of a contract for compliant proposals submitted by ITT
                    Systems in response to such requests.

          6.1.2.    Both parties acknowledge that EarthWatch has existing
                    relationships with suppliers in some of the areas in which
                    ITT Systems possesses resources and expertise. Nothing in
                    this Section creates an obligation on the part of EarthWatch
                    to eliminate or alter such relationships.

     6.2. Mutual Confidentiality:  The Parties agree that all code, inventions,
          ----------------------
          algorithms, know-how and ideas and all other business, technical and
          financial information they obtain from the other Party are the
          confidential property of the disclosing Party ("Proprietary
          Information" of the disclosing Party). Except as expressly and
          unambiguously allowed therein, and except as might be required to
          comply with a court order or subpoena or other government directive or
          requirement, the receiving Party will hold in confidence and not use
          other than for the intended purpose or disclose any Proprietary
          Information of the disclosing Party and shall similarly bind its
          employees in writing. This obligation shall survive the expiration of
          this Agreement and shall terminate five years after the expiration of
          this Agreement.

          6.2.1.    Information Not Protected: The receiving Party shall not be
                    obligated under this Section with respect to information the
                    receiving Party can document or demonstrate:

                  6.2.1.1.  Is or has become readily publicly available without
                            restriction through no fault of the receiving Party
                            or its employees or agents; or

                                       7
<PAGE>

                  6.2.1.2.  Is received without restriction from a third party
                            lawfully in possession of such information and
                            lawfully empowered to disclose such information; or

                  6.2.1.3.  Was rightfully in the possession of the receiving
                            Party without restriction prior to its disclosure by
                            the other Party; or

                  6.2.1.4.  Was independently developed by employees or
                            consultants of the receiving Party without access to
                            such Proprietary Information.

     6.3.  Force Majeure:  Neither of the Parties shall be liable for default or
           -------------
           delay caused by any occurrence beyond its reasonable control,
           including but not limited to fires, strikes or labor disputes, acts
           of God, of governmental authority or of the public enemy, war, riot
           or civil commotion.

     6.4.  Assignment: Neither Party may assign any rights or obligations
           ----------
           hereunder without the prior express written consent of the other,
           except to a third party pursuant to a merger, sale of all or
           substantially all assets, transfer to a subsidiary, or other
           corporate reorganization, where such third party is liable, along
           with the assigning Party, for the duties and obligations set forth in
           this Agreement. Any purported assignment or transfer shall be void
           and ineffective without such written consent, provided that such
           permission will not be unreasonably withheld. Subject to the above
           restrictions on assignment, the Agreement shall inure to the benefit
           of and bind the successors and assigns of the Parties .

     6.5.  Notices: All contractual correspondence, including notices, reports
           -------
           and documentation, shall be addressed as follows:

                     EarthWatch Incorporated
                     Mr. Shawn Thompson, Director of Contracts
                     1900 Pike Road
                     Longmont, CO 80501
                     Phone No: 303.682.4927
                     Fax No.: 303.682.3848
                     E-mail: sthompson@digitalglobe.com

                     ITT Industries, Inc.
                     Mr. Conrad Cierniak
                     1919 West Cook Road
                     Fort Wayne, IN 46818
                     Phone No: (219) 451-6837
                     Fax No.:  (219) 451-6196
                     E-mail: cjcierni@itt.com

           Such communications shall be effective when they are received by the
           addressee; but if sent by certified mail or express courier service
           in the manner set forth above, they shall be effective five (5) days
           after being deposited in the mail or two (2) days after being
           delivered to the courier. Any Party may change its address

                                       8
<PAGE>

           for such communications, or may change its authorized representative
           under (S)6.6, by giving an appropriate notice to the other Party in
           conformity with this Section.

     6.6.  Authorized Representatives: The only individuals authorized to make
           --------------------------
           changes to this Agreement and to sign contract documents are:

           6.6.1.  for EarthWatch, Herbert F. Satterlee, III, President & CEO.

           6.6.2.  for ITT Industries, Dr. Marvin R. Sambur, President, ITT
                   Defense.

     6.7.  No Joint Venture: No joint venture or partnership between the Parties
           ----------------
           shall be deemed or construed to have been created by this Agreement.
           Except as expressly set forth, no Party is by virtue of this
           Agreement authorized as an agent, employee or legal representative of
           any other Party. The relationship of the Parties is, and at all times
           will continue to be, that of independent contractors .

     6.8.  Severability:  If any provisions of this Agreement, or application
           ------------
           thereof, shall for any reason and to any extent be invalid or
           unenforceable, the remainder of this Agreement shall remain in full
           force and effect and be interpreted so as to best reasonably effect
           the intent of the Parties hereto.

     6.9.  No Waiver: The failure of any Party to enforce any of the provisions
           ---------
           of this Agreement shall not be construed to be a waiver of the right
           of such Party thereafter to enforce such provisions.

     6.10. Definitive Agreement: This Agreement, once signed and approved by
           --------------------
           each of the Parties, constitutes a legally binding and enforceable
           obligation on the part of each of the Parties hereto and their
           successors in interest, subject to the terms and conditions contained
           herein. The effectiveness of this Agreement shall be governed by
           (S)6.19.

     6.11. Compliance with Law: All Parties to this Agreement shall comply with
           -------------------
           all applicable federal, state, and local laws and regulations in
           performing their duties hereunder.

     6.12. Applicable Law: This Agreement shall be governed by and construed in
           --------------
           accordance with the laws of the State of Colorado, without regard to
           conflict-of-laws provisions.

     6.13. Dispute Resolution, Arbitration, and Jurisdiction:
           -------------------------------------------------

           6.13.1.  Efforts to Resolve Disputes: The Parties agree to use all
                    ---------------------------
                    reasonable efforts to resolve any disputes under, or in
                    relation to, the Agreement quickly and amicably to achieve
                    timely and full performance of the terms of the Agreement.
                    This expressly includes the right of the President or CEO of
                    either Party to personally discuss the disputed issue with
                    his or her counterpart of the other Party. This Section 6.13
                    shall not expand or delay the resolution of matters governed
                    by Section 4.3.

                                       9
<PAGE>

          6.13.2.  Notice of Dispute and Informal Resolution: Any Party that
                   -----------------------------------------
                   believes a dispute, controversy or claim has arisen under, or
                   relating to, the Agreement, or the termination hereof must
                   give written notice thereof to the other Party as soon as
                   reasonably practicable after the occurrence of the event or
                   matter which is the subject of such dispute, and in such
                   notice such Party shall provide particulars of the
                   circumstances and nature of such dispute and of its claim(s)
                   in relation thereto, and shall designate a person as its
                   representative for negotiations relating to the dispute,
                   which person shall have authority to settle the dispute. The
                   second Party shall give a written response to the first Party
                   within seven (7) days of the second Party's receipt of such
                   notice, specifying the second Party's position in relation to
                   the dispute and designating as its representative in
                   negotiations relating to the dispute a person with similar
                   authority. The designated representatives of each Party shall
                   then use all reasonable efforts to settle the dispute within
                   twenty (20) days.

          6.13.3.  Escalation of Informal Resolution: If the Parties' designated
                   ---------------------------------
                   representatives cannot resolve the dispute within that time,
                   the dispute may be escalated by either Party by submitting
                   the matter in writing to each Party's Authorized
                   Representative (as designated in Section 6.5 Notices, of this
                   Agreement), or to such other senior executives as may be
                   mutually agreed upon in writing by the Parties from time to
                   time.

          6.13.4.  Arbitration: Except for any matters subject to and finally
                   -----------
                   determined pursuant to Section 4.3, if the Parties cannot
                   resolve the dispute during the time period and in the manner
                   set forth in (S)6.13.1 through (S)6.13.3 herein, then any
                   claim, demand, or cause of action which arises out of or is
                   related to this Agreement, or the termination hereof
                   (collectively, "Claims"), shall be resolved by binding
                   arbitration in Washington, D.C., U.S.A., in accordance with:
                   (i) the then current commercial arbitration rules and
                   regulations of the American Arbitration Association (the
                   "AAA"); and (ii) the terms and conditions of this Agreement.
                   The terms of this Agreement shall control in the event of any
                   inconsistency between it and the AAA rules.

          6.13.5.  Arbitration Procedures: A Party desiring to submit a matter
                   ----------------------
                   to arbitration shall give written notice to the other Party.
                   The parties shall mutually agree upon an arbitrator, and in
                   the event that they cannot agree to an arbitrator, each Party
                   shall choose one arbitrator, who shall then pick a third
                   arbitrator who will arbitrate any Claims. Such third
                   arbitrator shall decide the matters submitted based upon the
                   evidence presented and the terms of this Agreement. Such
                   arbitrator shall issue a written award which shall state the
                   basis of the award and include detailed findings of fact and
                   conclusions of law. Any United States District Court of
                   competent jurisdiction may enter judgment upon any award,
                   either by confirming the award or by vacating, modifying or
                   correcting the award. Based on its review of the written
                   record of the

                                       10
<PAGE>

                   arbitration, the Court may vacate, modify or correct any
                   award: (i) based upon any of the grounds referred to in the
                   Federal Arbitration Act, (ii) where the arbitrator's findings
                   of fact are not supported by substantial evidence, or (iii)
                   where the arbitrator's conclusions of law are erroneous.

           6.13.6. Injunctive Relief: Except as limited by Section 4.3, nothing
                   -----------------
                   contained in this Section 6.13 shall prevent either Party
                   from seeking injunctive relief from any court of competent
                   jurisdiction prior to, during, or in addition to such
                   arbitration.

     6.14. Limitation of Liability: IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR
           -----------------------
           ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
           KIND IN CONNECTION WITH THIS AGREEMENT, EVEN IF SUCH PARTY HAS BEEN
           INFORMED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES.

     6.15. Entire Agreement: This Agreement constitutes the entire understanding
           ----------------
           and agreement of the Parties with respect to the subject matter and
           supersedes all prior and contemporaneous agreements or
           understandings. By signing this Agreement, each Party represents to
           the other that it has the authority to sign this Agreement and this
           Agreement is enforceable against it in accordance with its terms.

     6.16. Construction of Agreement. This Agreement has been negotiated by the
           -------------------------
           respective parties hereto and the language of this Agreement shall
           not be construed for or against any party.

     6.17. Public Announcements: Neither Party nor any of their officers,
           --------------------
           directors, employees, agents or representatives shall make any
           disclosure or public announcement with respect to the transaction
           contemplated by this Agreement without prior written approval of the
           other Party, except as such disclosures may be required by law.

     6.18. Headings.  Section headings used in this Agreement are inserted for
           --------
           convenience only and in no way are to be construed to define, limit
           or affect the construction or interpretation hereof.

     6.19. Effectiveness of the Agreement: Following execution, this Agreement
           ------------------------------
           becomes effective on the date that ITT conveys to EarthWatch the
           investment of $25 million detailed in the Investment Agreement
           between the Parties and EarthWatch conveys to ITT the corresponding
           shares of EarthWatch stock. Subject to the provisions of Section 5.1,
           this Agreement shall expire ten (10) years after the effective date.

This Strategic Supplier Agreement is executed on the dates and by the persons
whose names and signatures appear below and shall be effective in accordance
with (S)6.19.

                                       11
<PAGE>

ITT Industries, Inc.                  EarthWatch Incorporated

  /s/ Dr. Marvin R. Sambur               /s/ Herbert F. Satterlee, III
Signature                             Signature

    Dr. Marvin R. Sambur                    Herbert F. Satterlee, III
-----------------------------         ------------------------------------
Name                                  Name

    President, ITT Defense                  President & CEO
-----------------------------         ------------------------------------
Title                                 Title

       February 26, 1999                       February 26, 1999
Date                                  Date

                                       12

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