July 1, 1999

Mr. Shawn K. McCoy
1309 N. Hudson Street
Arlington, VA 22201

Dear Shawn:

On behalf of Hadron I am pleased to renew the offer for you to
continue in the position of Vice President of Hadron, as approved
by the Compensation committee of the Hadron Board of Directors.
The annual salary for this position is currently $5,000.00, paid
bi-weekly.  In addition, I am pleased to renew the offer for you to
continue as the President of Hadron's subsidiary, SyCom Services,
Inc., (SyCom) reporting to George Fowler, President of Hadron.  The
annual salary accompanying this position is $115,000 per annum paid
bi-weekly.

The term of your employment is for one year, subject to renewal
annually, at the Company's discretion, for two additional one-year
terms; provided, however, that the Company shall have the right to
terminate your employment with no further obligation on the part of
the Company if you are convicted of a felony or a crime of moral
turpitude or if the Company determines that you have not
satisfactorily performed your duties.  In the event that the
Company terminates your employment without cause, or if the Company
decides not to renew this agreement for any reason other than those
specified above, you shall receive six months' severance pay paid
out over six months in full and complete satisfaction of any claim
you may have by virtue of such termination of or election not to
renew your agreement with the Company.

In the event your employment agreement is renewed on July 1, 2000,
you shall be entitled to an increase in annual salary which is
commensurate with the annual increase awarded to other executive
officers of the Company, as determined by the Board of Directors.

During the term of your employment, you shall be entitled to
participate, on the same terms and conditions as other executive
employees of the Company, in such major medical, dental, life
insurance, 401(k), and other employee benefits which the Company
now provides or in the future may provide to its executive
employees.  You shall be entitled to four weeks of paid vacation
leave and two weeks of sick leave per year.
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Mr. Shawn McCoy
July 1, 1999
Page 2

In addition, and as part of your compensation package, you shall
continue to receive a car allowance in the amount of $350 per
month.  Furthermore, the Company will reimburse you for all
reasonable expenses incurred in the performance of your duties in
accordance with the Company's standard policy.

You will also be a member of the Hadron Bonus Plan for Fiscal Year
2000, if one is established.

In addition to the above, you will be eligible to receive incentive
stock options as stipulated in the Hadron, Inc. 1994 Stock Option
Plan, As Amended and approved by the Board of Directors.

After review of the terms and conditions expressed above, sign the
agreement in the space provided and return a copy to me.  George
Fowler and I look forward to the opportunity to continue to work
with you here at Hadron and EISI.  I believe you will continue to
find the position challenging and worthy of your talents.

Very truly yours,


/S/ C.W. GILLULY

C. W. Gilluly
Chairman of the Board and
Chief Executive Officer



Accepted:

/S/ SHAWN K. McCOY            7/1/99

________________________      __________
Shawn K. McCoy                     Date

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