Computer Sciences Corp. [CSC] and Germany’s Siemens [SI] have each won contracts worth close to $500 million each from the Transportation Security Administration (TSA) to provide computing hardware and services and maintenance support for security equipment respectively.

Under the Information Technology Infrastructure Program (ITIP), CSC will provide computing and communications hardware, software and services and will also help protect the agency’s information network from cyber threats and provide flexibility to accommodate changes in demand for information technology capabilities. The contract has a base year and four one-year options.

CSC will support TSA facilities worldwide under the contract. Unisys [UIS] was the incumbent contractor, a TSA spokeswoman told Defense Daily.

“This program ensures that TSA can fulfill our mission at airports around the country using secure technology systems and receiving the support necessary to carry out our critical work,” Emma Garrison-Alexander, assistant administrator, Information Technology/Chief Information Officer at TSA, said in a statement. The contract was competed under the Department of Homeland Security’s EAGLE contract.

Separately, TSA has awarded Siemens a potential $468.6 million contract through February 2014 to maintain an Integrated Logistics Support program to sustain the agency’s security equipment–excluding Explosives Detection Systems (EDS)–at the nation’s Category IV through Category X airports. Category X airports have the largest traffic volumes and Category IV airports the lowest.

The base period of the contract runs until Jan. 31, 2010, and then contains four one-year options. The performance period will move award of the next contract away from the end of the government’s fiscal year.

Siemens has been doing the maintenance work on checkpoint X-Ray systems, explosive trace detectors, and walk-through portal screening systems since March 2005 when it unseated Boeing [BA], which had been doing the work since June 2002. Siemens has received about $530 million under its original contract. Some of those funds include work the company will be continuing under an extension that runs into February 2010 for warehousing security equipment. The new contract doesn’t include the warehousing work, which will be competed as a small business set aside for an award early next year.

Other work Siemens will be doing under the new contract, which goes into effect Sept. 30, is program management, performance based logistics services, TSA Service Response Center services, and associated information technology infrastructure.

Maintenance related work on EDS systems, which screen checked baggage for explosives, is contracted to the manufacturers of the equipment, General Electric [GE], L-3 Communications [LLL] and Reveal Imaging Technologies.