Top DOE all other professional, scientific, and technical services contractors
In the 12 months ending Oct 5, 2026, the Department of Energy obligated $2.8B in net prime contract dollars under NAICS 541990, up 25.3% from $2.2B in the preceding 12 months. 32 prime contractors received positive obligations, and 1 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Energy. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DOE contractors for NAICS 541990
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 | Battelle Energy Alliance, LLC | $2.4B | $1.9B | 85.6% | — |
| 2 | Oak Ridge Associated Universities, Incorporated | $233.2M | $186.7M | 8.3% | — |
| 3 | Seatech Global Security Solutions | $48.7M | $16.0M | 1.7% | ▲ 2 |
| 4 | Booz Allen Hamilton Inc | $48.0M | $42.6M | 1.7% | ▼ 1 |
| 5 | Parsons Government Services International Inc. | $40.1M | $25.9M | 1.4% | ▼ 1 |
| 6 | Hunatek System Solutions LLC | $14.2M | $14.6M | 0.5% | — |
| 7 | Koniag Emerging Technologies LLC | $7.9M | $0 | 0.3% | New |
| 8 | Cherokee Nation Defense Solutions LLC | $3.7M | $3.4M | 0.1% | — |
| 9 | OLD Harbor Solutions LLC | $2.5M | $2.0M | 0.1% | — |
| 10 | The MITRE Corporation | $1.4M | $1.0M | 0.1% | ▲ 1 |
| 11 | Hyperion Research Holdings, LLC | $830K | $29K | 0.0% | ▲ 17 |
| 12 | J Foster & Associates LLC | $526K | $479K | 0.0% | — |
| 13 | L. E. Peabody & Associates, Inc | $400K | $60K | 0.0% | ▲ 12 |
| 14 | Bluepath Labs LLC | $380K | $1.1M | 0.0% | ▼ 4 |
| 15 | American National Standards Institute Incorporated | $350K | $0 | 0.0% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Battelle Energy Alliance, LLC$1.9B → $2.4B (+$468.8M) · now #1
- Oak Ridge Associated Universities, Incorporated$186.7M → $233.2M (+$46.5M) · now #2
- Seatech Global Security Solutions$16.0M → $48.7M (+$32.7M) · now #3
Largest declines
- Htgs-Culmen JV LLC$5.8M → −$3.5M (−$9.3M) · no latest-period obligations
- Bluepath Labs LLC$1.1M → $380K (−$760K) · now #14
- Hunatek System Solutions LLC$14.6M → $14.2M (−$397K) · now #6
New to this market
4 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Koniag Emerging Technologies LLC | Jun 2, 2026 | $7.9M |
| American National Standards Institute Incorporated | Jun 30, 2026 | $350K |
| Kpler Inc | Aug 12, 2026 | $100K |
| National Academy of Sciences | Feb 24, 2026 | $85K |
Where the money comes from
Funding sub-agencies within the Department of Energy, 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 Energy | $2.8B | $2.2B | Up $567.2M (25.3%) |
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 |
|---|---|---|---|
| 89703025FAR400021 | Booz Allen Hamilton Inc TECHNICAL, PROFESSIONAL, AND ADMINISTRATIVE SUPPORT SERVICES (TPASS) FOR ARPA-E. | $54.9M | Feb 28, 2027 |
| 89233123CNA000306 | Hunatek System Solutions LLC STRATEGIC ADVISORY SERVICES FOR GMS (NA-21) | $7.8M | Apr 4, 2027 |
| 89303026CIM000014 | Koniag Emerging Technologies LLC SERVICES ENCOMPASS A WIDE RANGE OF ADMINISTRATIVE, FINANCIAL, AND TECHNICAL SUPPORT FUNCTIONS FOR OCIO. | $7.9M | Jun 21, 2027 |
| 89233125FNA400716 | Seatech Global Security Solutions TASKS INCLUDE DESIGN, INTEGRATION, CONSTRUCTION, COMMUNICATIONS, LOGISTICS, TRAINING, AND EQUIPMENT PROCUREMENT TO SUPPORT THE DEPLOYMENT OF COUNTER NUCLEAR SMUGGLING SYSTEMS.… | $14.0M | Sep 4, 2027 |
| 89233125FNA400737 | Seatech Global Security Solutions LATIN AMERICA TASK ORDER FOR COUNTER NUCLEAR SMUGGLING SYSTEM DEPLOYMENT SERVICES IN SUPPORT OF THE NNSA OFFICE OF NUCLEAR SMUGGLING DETECTION AND DETERRENCE TO PREVENT NUCLEAR… | $7.4M | Sep 17, 2027 |
| DESC0014664 | Oak Ridge Associated Universities, Incorporated MANAGEMENT OF THE OAK RIDGE INSTITUTE FOR SCIENCE AND EDUCATION | $1.4B | Sep 30, 2027 |
| 89233125CNA000427 | Hunatek System Solutions LLC STRATEGIC AND PROGRAMMATIC SUPPORT SERVICES FOR THE NATIONAL NUCLEAR SECURITY ADMINISTRATION'S OFFICE OF GLOBAL MATERIAL SECURITY. | $25.7M | Sep 30, 2027 |
| 89233124FNA400648 | Parsons Government Services International Inc. TASKS INCLUDE DESIGN, INTEGRATION, CONSTRUCTION, COMMUNICATIONS, LOGISTICS, TRAINING, AND EQUIPMENT PROCUREMENT TO SUPPORT THE DEPLOYMENT OF COUNTER NUCLEAR SMUGGLING SYSTEMS.… | $20.2M | Nov 30, 2027 |
| 89233125FNA400705 | Parsons Government Services International Inc. TASKS INCLUDE DESIGN, INTEGRATION, CONSTRUCTION, COMMUNICATIONS, LOGISTICS, TRAINING, AND EQUIPMENT PROCUREMENT TO SUPPORT THE DEPLOYMENT OF COUNTER NUCLEAR SMUGGLING SYSTEMS.… | $14.1M | Nov 30, 2027 |
| 89303723FEM400282 | Cherokee Nation Defense Solutions LLC TECHNICAL SUPPORT SERVICES OF SAFEGUARDS, SECURITY AND EMERGENCY SERVICES AT THE DEPARTMENT OF ENERGY SAVANNAH RIVER SITE | $13.2M | Mar 31, 2028 |
Common questions
Who are the top DOE contractors for NAICS 541990?
In the latest 12 months, Battelle Energy Alliance, LLC ($2.4B), Oak Ridge Associated Universities, Incorporated ($233.2M), Seatech Global Security Solutions ($48.7M) received the most DOE obligations for all other professional, scientific, and technical services.
How concentrated is this market?
The eight largest primes held 99.7% of positive obligations, and Battelle Energy Alliance, LLC alone held 85.6%. 4 contractors won their first obligations in this market during the latest 12 months.
Are any large DOE NAICS 541990 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 89703025FAR400021 (Booz Allen Hamilton Inc, $54.9M obligated), ending Feb 28, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$99.3MFigures 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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