Most companies on this site depend on the federal government. Many depend on one part of it. In federal fiscal year 2025, TransDigm, Oshkosh, Leonardo DRS, Lockheed Martin, RTX, Textron, Oracle, Boeing and Huntington Ingalls each got 90% or more of their prime contract obligations from a single department. TransDigm's share was 100%.
The government services companies are spread more widely. Booz Allen Hamilton is the least concentrated company we cover: its largest awarding department, the Department of Defense, accounted for 40.5% of its obligations.
What we measure. For each company we added up its matched prime contract obligations in federal fiscal year 2025 by awarding department, then divided the largest department's total by the company's total. Obligations are commitments to pay, not revenue, and one large multi-year award can tilt a year. Companies marked † have a contract match we are still reviewing.
Every company's largest department
| Company | Largest awarding department | Share of obligations | Next largest |
|---|---|---|---|
| Mercury Systems † | Department of Defense | 100% | None of note |
| TransDigm | Department of Defense | 100% | None of note |
| AeroVironment † | Department of Defense | 100% | None of note |
| Oshkosh | Department of Defense | 100% | None of note |
| Leonardo DRS | Department of Defense | 100% | None of note |
| Lockheed Martin | Department of Defense | 98.8% | NASA, 1% |
| RTX | Department of Defense | 98.5% | Department of Transportation, 0.6% |
| Northrop Grumman † | Department of Defense | 96.3% | NASA, 3.3% |
| BWX Technologies † | Department of Energy | 95.8% | Department of Defense, 4.2% |
| Textron | Department of Defense | 95.7% | Department of Transportation, 4.3% |
| Oracle | Department of Veterans Affairs | 94.7% | Department of Defense, 5.2% |
| Boeing | Department of Defense | 93% | NASA, 6.9% |
| Huntington Ingalls | Department of Defense | 92.1% | General Services Administration, 7.8% |
| General Dynamics | Department of Defense | 89.9% | General Services Administration, 2.6% |
| V2X | Department of Defense | 89.5% | General Services Administration, 7.5% |
| Amazon | Department of Defense | 88% | General Services Administration, 6.6% |
| Kratos Defense † | Department of Defense | 81.6% | General Services Administration, 18.3% |
| L3Harris | Department of Defense | 80.6% | Department of Transportation, 12.2% |
| Microsoft | Department of Defense | 77.8% | Department of Agriculture, 8.3% |
| KBR | Department of Defense | 77.2% | NASA, 16% |
| Amentum | Department of Defense | 77% | NASA, 8.5% |
| Teledyne † | Department of Defense | 74.2% | NASA, 25.5% |
| Palantir | Department of Defense | 70.2% | Department of Homeland Security, 8% |
| Dell Technologies | Department of Defense | 62.7% | Department of Veterans Affairs, 17.5% |
| CACI International | Department of Defense | 57.9% | General Services Administration, 24.6% |
| ICF International | Department of Health and Human Services | 53% | Department of the Interior, 13.5% |
| Maximus | Department of Veterans Affairs | 52.5% | Department of Health and Human Services, 24.5% |
| Fluor | Department of Defense | 48.4% | Department of Energy, 46.5% |
| Science Applications International | Department of Defense | 46.6% | General Services Administration, 23.2% |
| Parsons | Department of Defense | 44.6% | Department of State, 28.6% |
| Leidos | Department of Defense | 42.8% | Department of Veterans Affairs, 25% |
| Booz Allen Hamilton | Department of Defense | 40.5% | General Services Administration, 31.4% |
NASA is the National Aeronautics and Space Administration.
One department, several customers
"The Pentagon" is not a single buyer. The Army, Navy and Air Force each run their own budgets and contracting offices, as do defense agencies such as the Missile Defense Agency. One level down, the picture changes. For the companies most concentrated in the Department of Defense, the table shows the single military department or defense agency that awarded the most.
| Company | Largest defense buyer | Share of all obligations |
|---|---|---|
| TransDigm | Department of the Army | 90.1% |
| Huntington Ingalls | Department of the Navy | 84.4% |
| Oshkosh | Department of the Army | 81.7% |
| General Dynamics | Department of the Navy | 72.5% |
| Boeing | Department of the Air Force | 60.8% |
| Leonardo DRS | Department of the Army | 59.4% |
| Lockheed Martin | Department of the Navy | 55.6% |
| Textron | Department of the Navy | 49.2% |
| RTX | Department of the Navy | 48% |
| V2X | Department of the Army | 42.7% |
| Amazon | Department of the Navy | 37.3% |
Huntington Ingalls: obligations by awarding agency, FFY2025
Top awarding sub-agencies; the rest grouped as Other.
Show the data as a table
| Agency | Obligations | Share |
|---|---|---|
| Department of the Navy | $9.48B | 84.4% |
| Federal Acquisition Service | $879M | 7.8% |
| Department of the Air Force | $800M | 7.1% |
| Department of the Army | $43.1M | 0.4% |
| Defense Counterintelligence and Security Agency | $13.1M | 0.1% |
| Defense Threat Reduction Agency | $4.9M | 0% |
| Washington Headquarters Services | $4.1M | 0% |
| Missile Defense Agency | $2.9M | 0% |
| Other | $3.1M | 0% |
Huntington Ingalls is the clearest case. It builds aircraft carriers, submarines and amphibious ships, and the Department of the Navy awarded 84.4% of its obligations. The company also reports 99.9% of its revenue from the U.S. government. Few companies have as much of their business tied to one buyer's plans.
Civilian concentration
Maximus is the civilian counterpart. The Department of Veterans Affairs accounted for 52.5% of its obligations and the Department of Health and Human Services for 24.5%. The Department of Defense was 0.2%. Federal work is 55% of Maximus' revenue; its 10-K says much of the rest comes from state and local governments.
BWX Technologies looks even more concentrated, with 95.8% of matched obligations from the Department of Energy. But its matched obligations are far below the government revenue it reports, and the match is under review, so we don't rank it here.
Elsewhere, civilian departments rank second rather than first. The Department of Veterans Affairs is second for Leidos, at 25%, the Department of State is second for Parsons, at 28.6%, and the National Aeronautics and Space Administration is second for Amentum, at 8.5%.
Why concentration matters
A company concentrated in one department rises and falls more with that department's budget. Its spending is set mostly in one appropriations bill, its priorities can shift with a new strategy or a new program office, and its contracting staff decide when awards go out. A company spread across many departments faces many smaller versions of those risks at once.
Concentration in a department is not the same as concentration in a program. The Department of Defense buys thousands of different things, and a shipbuilder and a software firm can both depend on it for very different reasons. Each company page lists its largest awards, which show how much of the record rests on a few contracts.
Two caveats apply to every number here:
- Who signs is not always who pays. The General Services Administration often awards contracts on behalf of other agencies, including the Department of Defense. Where GSA is a company's second-largest department, as it is for Huntington Ingalls, General Dynamics, V2X, Amazon, CACI International, Science Applications International and Booz Allen Hamilton, some of that work may be funded by another department.
- Prime contracts only. Work a company does as a subcontractor appears under another company's name, so these figures describe its own prime contracts, not all of its federal revenue.
None of this is a forecast. It describes where each company's federal contract dollars came from in one year. Use the rankings for overall dependence and our shutdown guide for how the civilian-defense split plays out in a funding lapse.
How we did this
We took prime contract obligations on USAspending.gov (award types A to D) to every recipient we matched to each company in federal fiscal year 2025, grouped by awarding agency and sub-agency. The share is each department's obligations divided by the company's total across all departments. Joint ventures are kept out of their owners' totals. Matching rules are on the methodology page.