SI International on Winning Team Supporting U.S. Air Force Counterdrug/Counter Narco-Terrorism Program

RESTON, Va., Oct. 17 /PRNewswire-FirstCall/ -- SI International, Inc. (Nasdaq: SINT), an information technology and network solutions (IT) company, announced today that the Company is on the ARINC team that was awarded the Counterdrug/Counter Narco-Terrorism (CD/CNT) Engineering, Technical, Staff, and Management Support Services contract with the U.S. Air Force, Headquarters Air Combat Command, Homeland Defense, Civil Support, at Langley Air Force Base, VA. The overall contract has a one-year base period and two one-year options with an estimated value of $13 million, if all options are exercised. The contract value to SI International is approximately $6.5 million over the three-year period. The value of the contract win was included in the October 11, 2007 news release announcing awards in excess of $450 million for the month of September.

Under the contract, the ARINC and SI International will work with US Embassies, unified commands and components to develop strategic priorities and technical engineering details for funding/programming of CD/CNT systems requirements; provide acquisition management assistance into cost, schedule, and performance parameters associated with the potential installation/integration of surveillance and communications systems; support the quality of surveillance data provided to U.S. and Partner Nation Command and Control (C2) systems; provide systems engineering support and surveillance systems architecture development of future CD/CNT systems upgrades and integration efforts; monitor and analyze radar data feeds; and interface with USSOUTHCOM, USCENTCOM, USNORTHCOM, Joint InterAgency Task Force-South (JIATF-S), Joint Task Force-North (JTF-N), Air Marine Operations Center (AMOC), AFSOUTH, AFNORTH, and CENTAF. SI International has been supporting this program since the late 1990s.

"Using our rapid response, rapid deployment capabilities, SI International will be assisting the military in bringing new technologies to the warfighters to meet their mission-critical operational needs," said Brad Antle , President and CEO of SI International. "We are extremely honored that the ARINC and SI International team was selected by the U.S. Air Force to continue to support their counterdrug, counter narco-terrorism program."

About ARINC: ARINC Incorporated is a world leader in transportation communications and systems engineering. The company develops and operates communications and information processing systems and provides systems engineering and integration solutions to eight key industries: airports, aviation, aerospace and defense, government, healthcare, networks, security, and transportation. Founded to provide reliable and efficient radio communications for the airlines, ARINC is headquartered in Annapolis, Maryland, and maintains regional offices in London and Singapore , with over 3,200 employees worldwide. ARINCE is ISO 9001:2000 certified. For more information, visit the ARINC web site at .

About SI International: SI International, a member of the Russell 2000 and S&P SmallCap 600 indices, is a provider of information technology and network solutions (IT) primarily to the federal government. The Company combines technology and industry expertise to provide a full spectrum of state-of-the-practice solutions and services, from design and development to documentation and operations, to assist clients in achieving their missions. SI International is ranked as the 42nd largest Federal Prime IT Contractor by Washington Technology and has approximately 4,700 employees. More information about SI International can be found at .

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 competitive 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 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.

SOURCE SI International, Inc.