General Services Administration (GSA) contracts

About contracting with the GSA

The General Services Administration plays a dual role in federal procurement — it is itself a substantial buyer through its Public Buildings Service, and it operates the Multiple Award Schedule programme that other federal agencies use to buy from. The Public Buildings Service manages the federal civilian real-estate portfolio: roughly 370 million square feet of office and other space spread across federal-owned and leased buildings. PBS contracts heavily for construction and major renovation, janitorial services, guard services, building operations and maintenance, energy-management work, and elevator maintenance. These are typically multi-year contracts with strong small-business utilisation. The Federal Acquisition Service runs the Multiple Award Schedule programme (also called GSA Schedules or MAS) — the largest IDIQ-style contract vehicle in the federal government, with over $40 billion in annual sales. Getting on a GSA Schedule is itself a significant procurement process: vendors submit a proposal, GSA evaluates pricing and capability, and successful vendors receive a five-year Schedule contract with three five-year option periods. Federal agencies then issue task orders directly to Schedule holders, often via GSA eBuy. The MAS programme is structured around Large Categories (e.g., 33 Information Technology, 36 Office Management, 51 Industrial Products and Services). FAS also runs major government-wide acquisition contracts (GWACs) such as Alliant, OASIS, and others, plus the Enterprise Infrastructure Solutions (EIS) telecommunications vehicle. The Technology Transformation Services (including 18F and the Centers of Excellence) buys agile-development and digital-services work, often through the FAS Highly Adaptive Cybersecurity Services and Agile/De-Risking programmes. Small businesses should consider GSA Schedule onboarding as a strategic investment — it broadens visibility to many federal buyers. Vendors targeting GSA direct work should align with 236220 (construction), 561720 (janitorial), 561612 (guards), and 541512 (IT services). See our SAM.gov alternative, best SAM.gov alternatives, and federal contract search pages for context on GSA opportunities.

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