Top DoD engineering services contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $35.2B in net prime contract dollars under NAICS 541330, down 19.4% from $43.7B in the preceding 12 months. 1,723 prime contractors received positive obligations, and 136 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 541330
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Electric Boat Corporation | $7.0B | $6.3B | 19.8% | — |
| 2 | Booz Allen Hamilton Inc | $1.4B | $1.6B | 3.9% | ▲ 1 |
| 3 | Science Applications International Corporation | $1.3B | $1.2B | 3.6% | ▲ 3 |
| 4 | Northrop Grumman Systems Corporation | $1.3B | $1.8B | 3.6% | ▼ 2 |
| 5 | Raytheon Company | $1.0B | $1.3B | 2.9% | ▼ 1 |
| 6 | Lockheed Martin Corporation | $873.1M | $1.2B | 2.5% | ▼ 1 |
| 7 | The Boeing Company | $727.0M | $784.1M | 2.1% | ▲ 2 |
| 8 | CACI, Inc. - Federal | $656.9M | $711.9M | 1.9% | ▲ 2 |
| 9 | General Dynamics Mission Systems, Inc. | $612.5M | $454.4M | 1.7% | ▲ 8 |
| 10 | BAE Systems Technology Solutions & Services Inc. | $610.6M | $958.9M | 1.7% | ▼ 3 |
| 11 | Leidos, Inc. | $564.7M | $657.6M | 1.6% | ▲ 1 |
| 12 | The Charles Stark Draper Laboratory, Inc. | $561.3M | $398.7M | 1.6% | ▲ 8 |
| 13 | HII Mission Technologies Corp | $520.9M | $620.2M | 1.5% | ▲ 1 |
| 14 | General Dynamics Information Technology, Inc. | $449.9M | $534.3M | 1.3% | ▲ 1 |
| 15 | Beyond New Horizons, LLC | $384.9M | $404.4M | 1.1% | ▲ 4 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Electric Boat Corporation$6.3B → $7.0B (+$679.3M) · now #1
- Amentum Technology, Inc.$66.2M → $263.3M (+$197.2M) · now #23
- The Charles Stark Draper Laboratory, Inc.$398.7M → $561.3M (+$162.6M) · now #12
Largest declines
- Tcom, L.P.$690.9M → $103.4M (−$587.5M) · now #41
- Northrop Grumman Systems Corporation$1.8B → $1.3B (−$479.4M) · now #4
- Lockheed Martin Corp$792.1M → $344.2M (−$447.9M) · now #20
New to this market
178 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Agile JV, LLC | Feb 27, 2026 | $59.4M |
| M&N-Bmcd Lant Siop JV | Jan 21, 2026 | $57.7M |
| Raytheon Southeast Asia Systems Company | May 27, 2026 | $33.0M |
| Akima Mission Optimization LLC | Mar 5, 2026 | $13.3M |
| Seaward Services, Inc. | Dec 5, 2025 | $12.8M |
| World Wide Technology LLC | May 15, 2026 | $11.3M |
| Stantec-AECOM Siop JV | Jan 14, 2026 | $10.0M |
| Innovative People and Technology Corporation | Feb 17, 2026 | $8.5M |
Where the money comes from
Funding sub-agencies within the Department of Defense, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Department of the Navy | $20.7B | $23.9B | Down $3.3B (13.7%) |
| Department of the Air Force | $7.2B | $9.5B | Down $2.4B (24.9%) |
| Department of the Army | $5.5B | $7.5B | Down $2.0B (26.3%) |
| Immediate Office of the Secretary of Defense | $875.0M | $1.0B | Down $159.3M (15.4%) |
| Missile Defense Agency | $228.6M | $297.3M | Down $68.7M (23.1%) |
| U.S. Special Operations Command | $156.1M | $187.3M | Down $31.2M (16.7%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 47QFCA21F0058 | Peraton Inc. OPERATIONAL PLANNING IMPLEMENTATION AND ASSESSMENT SERVICES (OPIAS) BASE AWARD. | $806.2M | Jan 5, 2027 |
| 47QFCA24F0033 | v2x Aerospace LLC WARFIGHTER TRAINING READINESS SOLUTIONS W-TRS | $625.1M | Feb 28, 2027 |
| 47QFCA21F0087 | CACI NSS, LLC SPECIAL OPERATIONS FORCES EMERGING THREATS OPERATIONS AND PLANNING SUPPORT | $789.3M | Mar 28, 2027 |
| N6426720F3001 | HII Mission Technologies Corp AWARD OF NITE TASK ORDER | $744.1M | May 11, 2027 |
| 47QFCA22F0039 | HII Mission Technologies Corp THE PURPOSE OF THIS TO IS TO PROVIDE TECHNOLOGY INTEGRATED SERVICES TO NSIN AND ITS MISSION PARTNERS FOR THE PURPOSE OF COUNTERING AND DETERRING CURRENT AND EMERGING GLOBAL… | $744.8M | Jul 24, 2027 |
| 47QFCA22F0047 | Booz Allen Hamilton Inc TASK ORDER AWARD | $1.3B | Sep 5, 2027 |
| 47QFCA22F0051 | Leidos, Inc. THE PURPOSE OF THIS TO IS TO PROVIDE RESEARCH, DESIGN, DEVELOPMENT, INTEGRATION, T&E, INITIAL FIELDING AND OPERATION, LOGISTICS, MAINTENANCE, SUSTAINMENT, AND TRAINING FOR… | $1.0B | Sep 13, 2027 |
| 47QFCA25F0009 | Science Applications International Corporation SYSTEM SOFTWARE LIFECYCLE ENGINEERING SSLE | $722.4M | Sep 14, 2027 |
| FA882320C0004 | l3harris Technologies, Inc. AWARD OF MAINTENANCE OF SPACE SURVEILLENCE AND INTEGRATED CAPABILITIES CONTRACT | $1.1B | Jan 31, 2028 |
| W31P4Q23C0008 | Lockheed Martin Corporation THIS UCA IS FOR A PARTIAL STATEMENT OF WORK (SOW) SCOPE LIMITED TO PROCURING LONG LEAD ITEMS (LLI), PROGRAM MANAGEMENT, AND SYSTEMS ENGINEERING ASSOCIATED WITH BATTERY 2 FOR A… | $604.9M | Feb 28, 2028 |
Common questions
Who are the top DoD contractors for NAICS 541330?
In the latest 12 months, Electric Boat Corporation ($7.0B), Booz Allen Hamilton Inc ($1.4B), Science Applications International Corporation ($1.3B) received the most DoD obligations for engineering services.
How concentrated is this market?
The eight largest primes held 40.2% of positive obligations, and Electric Boat Corporation alone held 19.8%. 178 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 541330 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 47QFCA21F0058 (Peraton Inc., $806.2M obligated), ending Jan 5, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$206.2MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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