GSA serves as the federal government's "business manager” and leverages the buying power of the federal government to acquire best value for taxpayers and federal customers by providing real estate, products, services, and information technology solutions to enable federal employees to accomplish their missions worldwide. GSA is comprised of two major business lines: the Public Buildings Service and the Federal Acquisition Service. Did You Know? GSA's operations are equivalent in size and complexity to those of large Fortune 500 corporations!