On March 24, 2008, SI International, Inc. (the "Company") issued a press release announcing that the Company's Board of Directors authorized the expansion of the Company's stock repurchase program for the repurchase of up to an additional 700,000 shares of its common stock. This amount is in addition to the Board's previous 300,000 share authorization, bringing the total number of shares of common stock authorized for repurchase to 1 million. The aggregate maximum dollar amount to be spent on the repurchase program is $25 million. The share repurchase program will be funded from available cash and the Company's existing credit facility. Such press release is incorporated by reference from Exhibit 99.1 to this Form 8-K and is furnished to, but not filed with, the Commission.

(d) Exhibits

Exhibit
Number     Exhibit
99.1       Press Release dated March 24, 2008

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, financial information or reporting, 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 may involve a number of risks and uncertainties, which are described in the Company's filings with the Securities and Exchange Commission. These risks and uncertainties include: changes in federal government (or other applicable) procurement laws, regulations, policies and budgets; risks relating to contract performance; changes in the risks associated with the competitive process or environment (including as a result of bid protests); and the important factors discussed in the Risk Factors section of the annual report on Form 10-K filed by the Company 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. The Company 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.