Department of Defense (DoD) contracts

About contracting with the DoD

The Department of Defense is by a wide margin the largest single procurement buyer in the US federal government, accounting for more than half of all federal contract dollars in a typical year. DoD spending is split across the four military services (Army, Navy, Air Force, Marine Corps), the Defense Logistics Agency, the Defense Health Agency, and numerous other defense agencies and field activities. Each maintains its own contracting commands with delegated authority. The Defense Logistics Agency alone awards tens of billions of dollars annually for consumable supplies, fuel, subsistence, and medical material — most of it through DLA Internet Bid Board System (DIBBS) for smaller buys and through structured solicitations on SAM.gov for larger requirements. Major weapons-system buying is concentrated at NAVSEA (ships), NAVAIR (naval aircraft and missiles), AFLCMC (Air Force aircraft and electronics), and the Army Contracting Command's major subordinate commands. Base-operations support and military construction (MILCON) — typically run by NAVFAC and USACE — drive a steady stream of facilities, utilities, and construction awards. For small and mid-sized businesses, the most accessible path into DoD is through service contracts under set-asides (8(a), HUBZone, SDVOSB, WOSB), DLA simplified acquisitions through DIBBS, and subcontracting under prime contractor mentor-protégé arrangements. DoD also runs the largest SBIR/STTR programmes of any federal agency, which can be a valuable on-ramp for technology firms. Vendors targeting DoD should have a clean SAM.gov registration, the appropriate NAICS codes selected (541330 for engineering, 541512 for IT, 541715 for R&D, 236220 for construction), and where possible at least one socioeconomic certification. See our guides on the SAM.gov alternative search experience and federal contract search for more on filtering opportunities.

Read the full DoD contracting guide →