UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  December 1, 2004

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 7.01                                Regulation FD Disclosure

On October 5, 2004, SI International, Inc. (the “Company”) announced that it had been awarded a firm fixed price, time and materials, and cost-plus fixed-fee contract by the U.S. Army to provide Human Resources, Personnel Services and Support (the “HRSolutions Contract”).  The HR Solutions Contract was awarded as an indefinite delivery, indefinite quantity (ID/IQ) contract with a contract ceiling value of $458 million over a five-year period, including one-year base and four option years exercisable by the Government.  On November 30, 2004, the Company was awarded its first task order under the HRSolutions Contract for a one-year period and with a task order value of approximately $416,000.

The above-referenced statements may contain forward-looking statements that are made pursuant to the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995.  Expressions of future goals and similar expressions reflecting something other than historical fact are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements.  These forward-looking statements involve a number of risks and uncertainties, which are described in SI International, Inc.’s filings with the Securities and Exchange Commission.  These risks and uncertainties include: differences between authorized amounts and amounts received by SI International, Inc. under government contracts; government customers’ failure to exercise options under contracts; changes in federal government (or other applicable) procurement laws, regulations, policies and budgets; and SI International, Inc.’s ability to attract and retain qualified personnel; and the important factors discussed in the Risk Factors section of the annual report on Form 10-K/A filed by SI International, Inc. with the Securities and Exchange Commission and available directly from the Commission at www.sec.gov..  The actual results may differ materially from any forward-looking statements due to such risks and uncertainties.  SI International, Inc. undertakes no obligations to revise or update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.