Government defense contracting runs on a fixed cycle. Congress appropriates money, the Department of Defense obligates it to a contract, companies bid or negotiate, and the winner builds the item. In fiscal year 2025 the federal government committed about $793 billion on contracts. The count comes from a Government Accountability Office snapshot published in May 2026.
The pipeline starts earlier than the award, with the budget request that Congress then shapes. The path from request to appropriation appears in the Navy's FY2026 budget request. An award is the middle of the story, not the start.
The records below are short, dated, and official. Two are Congressional Research Service primers updated in February 2026, and one is the GAO snapshot of the full contracting year. The same spending questions sit on the government news desk.
Where Does The Money For A Contract Begin?
The money begins with Congress. "Congress typically authorizes and appropriates procurement funding to DOD for nonconstruction investments," according to the CRS primer on procurement, updated as of February 11, 2026. An appropriation is a legal permission to spend. Nothing can be contracted against until it exists.
Two accounts carry most of the work. Procurement buys the item itself. Research and development money pays for the years before it, per the same primer. Congress renews both accounts each year, so the cycle resets with every budget.
The scale of what follows is recorded each year. Federal agencies committed about $793 billion on contracts in fiscal year 2025, per the GAO snapshot. That was an increase of $17.8 billion over the prior year, after adjusting for inflation.
What Is An Obligation In Government Defense Contracting?
An obligation is the act of committing money, not the act of paying it. "Obligation is the term used when agencies enter into contracts, employ personnel, or otherwise commit to spending money," the procurement primer states. A contract records the promise; the cash follows later.
The defense share of this activity leads government. DOD obligated $445 billion on defense contracts in fiscal year 2024, more than all other government agencies combined at $310 billion, according to the CRS primer on contractors.
The distinction matters on the books. An obligation can sit for years while a ship is built. Payment follows the work, sometimes long after the promise was recorded.
How Does A Program Reach Its First Big Contract?
Major programs cross a named gate. "A program that produces a major capability (e.g., an aircraft carrier) typically enters procurement after it receives Milestone C approval in the Defense Acquisition System," per the CRS primer. Before that point the work sits in development, funded through research and development appropriations.
The gate matters for contractors. Development work and production work draw on different accounts. A move across Milestone C therefore changes which budget pays the bills, and which contracts can follow.
Who Holds The Largest Shares Of Defense Contracts?
Five firms lead the list. Lockheed Martin, RTX Corporation, Boeing, Northrop Grumman, and General Dynamics received 30 percent of DOD contract obligations in fiscal year 2024, according to the contractors primer.
Structure explains part of the size. These companies act as primes, meaning they hold the direct contract with the government. Primes then subcontract portions of the work to smaller firms, so one award supports many companies under the same ceiling.
The rest of the money spreads wide. The same primer records DOD contracts with many other entities. Subcontracting moves the work outward, and each layer records its own awards.
Conclusion: A Cycle Of Named Steps
The pipeline holds together because each step has a name and a record. The appropriation authorizes, the obligation commits, the milestone clears, and the award binds a prime. In fiscal year 2025 the federal commitment reached about $793 billion. A year earlier, five primes held 30 percent of the defense total. The numbers change each year; the sequence of named steps does not. This connects to our earlier piece, Navy Recruiting Turnaround: 44,096 Accessions Against a 40,600 Goal in Fiscal 2025.
