Top DoD other scientific and technical consulting services contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $523.2M in net prime contract dollars under NAICS 541690, down 34.8% from $802.3M in the preceding 12 months. 165 prime contractors received positive obligations, and 19 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 541690
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 | General Dynamics One Source LLC | $100.0M | $81.6M | 19.0% | ▲ 1 |
| 2 | System High Corporation | $59.5M | $55.1M | 11.3% | ▲ 2 |
| 3 | Parsons Government Services Inc. | $38.2M | $153.4M | 7.3% | ▼ 2 |
| 4 | Lockheed Martin Corporation | $37.8M | $65.5M | 7.2% | ▼ 1 |
| 5 | v2x Aerospace LLC | $31.1M | $860K | 5.9% | ▲ 80 |
| 6 | Mantech Advanced Systems International, Inc. | $30.7M | $39.6M | 5.9% | ▼ 1 |
| 7 | Modern Technology Solutions, Inc. | $14.6M | $0 | 2.8% | New |
| 8 | Ameresco Select, Inc. | $13.4M | $15.8M | 2.6% | ▲ 2 |
| 9 | Kegman Inc. | $12.6M | $14.5M | 2.4% | ▲ 2 |
| 10 | Goldbelt Professional Services, LLC | $12.4M | $9.3M | 2.4% | ▲ 6 |
| 11 | k2 Group, Inc. | $10.1M | $9.1M | 1.9% | ▲ 7 |
| 12 | W R Systems Ltd. | $9.3M | $4.4M | 1.8% | ▲ 20 |
| 13 | Technology Security Associates, Inc. | $8.9M | $8.8M | 1.7% | ▲ 7 |
| 14 | t3i, Inc. | $8.8M | $1.9M | 1.7% | ▲ 46 |
| 15 | Janus Research Group, LLC | $7.7M | $18.7M | 1.5% | ▼ 7 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- v2x Aerospace LLC$860K → $31.1M (+$30.2M) · now #5
- General Dynamics One Source LLC$81.6M → $100.0M (+$18.4M) · now #1
- Modern Technology Solutions, Inc.$0 → $14.6M (+$14.6M) · now #7
Largest declines
- Parsons Government Services Inc.$153.4M → $38.2M (−$115.2M) · now #3
- Lockheed Martin Corporation$65.5M → $37.8M (−$27.7M) · now #4
- Raytheon Company$19.0M → $0 (−$19.0M) · no latest-period obligations
New to this market
29 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Modern Technology Solutions, Inc. | Sep 8, 2026 | $14.6M |
| Seventh Emergence Solutions, LLC | Apr 10, 2026 | $2.7M |
| Nightwing Intelligence Solutions, LLC | Jan 13, 2026 | $2.3M |
| Willowview Consulting, Inc. | Jul 1, 2026 | $1.6M |
| Environmental Assessment Services, LLC | Jan 29, 2026 | $1.4M |
| Rogerson Consulting LLC | Jun 16, 2026 | $933K |
| Bell Textron Inc | Dec 9, 2025 | $761K |
| DAV-Force, Inc. | Mar 23, 2026 | $631K |
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 Air Force | $271.8M | $362.9M | Down $91.0M (25.1%) |
| Department of the Army | $93.9M | $183.6M | Down $89.6M (48.8%) |
| Department of the Navy | $60.1M | $109.6M | Down $49.5M (45.2%) |
| Defense Advanced Research Projects Agency | $31.5M | $32.8M | Down $1.3M (4.0%) |
| Defense Threat Reduction Agency | $19.2M | $24.5M | Down $5.2M (21.5%) |
| Missile Defense Agency | $17.4M | $29.9M | Down $12.5M (41.8%) |
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 |
|---|---|---|---|
| H9240022C0002 | Vantor Services Inc. JICSOC GEOSPATIAL SBIR PHASE 3 | $47.9M | Oct 31, 2026 |
| HT001122C0016 | Kennell & Associates Inc SUPPORT FOR STATISTICAL ANALYSIS IN THE AREAS OF (1) BUDGETING, PRICING AND FINANCIAL ANALYSIS (2) POLICY ANALYSIS (3) LIFECYCLE CONTRACT MANAGEMENT (4) CONTRACT COST ADJUSTMENT… | $33.1M | Dec 17, 2026 |
| HDTRA122C0026 | Akima Data Management LLC SECURITY SUPPORT SERVICES | $40.2M | Feb 28, 2027 |
| HR001122C0073 | System High Corporation PROGRAM SECURITY SERVICES | $146.4M | Mar 20, 2027 |
| FA564125F0011 | Parsons Government Services Inc. REQUIREMENTS FOR THE EARLY WARNING CAPABILITY (EWC) AND COMMAND AND CONTROL (C2) TASK ORDER (TO) UNDER THE AIR BASE AIR DEFENSE (ABAD) INDEFINITE DELIVERY/INDEFINITE QUANTITY… | $72.9M | Mar 31, 2027 |
| FA448410F0001 | Ameresco Select, Inc. SUPER ESPC FOR MID-ATLANTIC REGION | $35.8M | May 31, 2027 |
| FA702226F0014 | v2x Aerospace LLC THIS IS AN IDIQ CONTRACT WITH A 10 YEAR ORDERING PERIOD TO ACQUIRE NON-PERSONAL SERVICES FOR THE OPERATION, MAINTENANCE, AND SUSTAINMENT OF RADAR(S) LOCATED ON THE UNITED STATES… | $31.1M | Jun 22, 2027 |
| HQ085821C0013 | Mobius Consulting, LLC DEI LABOR | $37.4M | Jul 15, 2027 |
| HQ085822C0007 | System High Corporation ADVISORY AND ASSISTANCE SERVICES (A&AS) SUPPORTING THE DEVELOPMENT, IMPLEMENTATION, MAINTENANCE, AND ASSESSMENT OF SECURITY, EMERGENCY MANAGEMENT, AND PROGRAM PROTECTION FOR THE… | $87.8M | Aug 25, 2027 |
| N4740802F4965 | Ameresco Select, Inc. 200305!155882!1700!C7408 !NAVAL FACILITIES ENGINEERING COM!DEAM3699EE73682!C!N! !N!N4740802F4965P00001!20030206!20070930!101162741!039271064!006953418!N!SELECT ENERGY SERVICES,… | $29.1M | Sep 30, 2027 |
Common questions
Who are the top DoD contractors for NAICS 541690?
In the latest 12 months, General Dynamics One Source LLC ($100.0M), System High Corporation ($59.5M), Parsons Government Services Inc. ($38.2M) received the most DoD obligations for other scientific and technical consulting services.
How concentrated is this market?
The eight largest primes held 61.9% of positive obligations, and General Dynamics One Source LLC alone held 19.0%. 29 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 541690 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is H9240022C0002 (Vantor Services Inc., $47.9M obligated), ending Oct 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 541690 across all agencies
HHS · NAICS 541690
$552.5MDOE · NAICS 541690
$72.8MGSA · NAICS 541690
$43.9MCommerce · NAICS 541690
$39.9MDHS · NAICS 541690
$37.7MVA · NAICS 541690
$33.6MNASA · NAICS 541690
$24.9MDOT · NAICS 541690
$22.2MFigures 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.
Ready to connect your pursuit work?
GovEagle gives BD directors, capture managers, and proposal teams one AI workspace from pipeline through proposal, with CMMC/FedRAMP Certified compliance built in.