Top DOE engineering services contractors
In the 12 months ending Oct 5, 2026, the Department of Energy obligated $706.0M in net prime contract dollars under NAICS 541330, up 45.1% from $486.4M in the preceding 12 months. 57 prime contractors received positive obligations, and 8 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 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 | Bwxt Enrichment Operations, LLC | $199.7M | $67.0M | 28.3% | ▲ 1 |
| 2 | Mele Associates Inc | $107.4M | $112.1M | 15.2% | ▼ 1 |
| 3 | Techsource, LLC | $77.4M | $49.9M | 10.9% | — |
| 4 | KBC Energy Solutions LLC | $45.3M | $29.8M | 6.4% | ▲ 1 |
| 5 | Parsons Government Services Inc. | $45.3M | $28.6M | 6.4% | ▲ 1 |
| 6 | Keylogic, LLC | $35.8M | $43.5M | 5.1% | ▼ 2 |
| 7 | RSI Nuclear, LLC | $33.7M | $18.1M | 4.8% | ▲ 2 |
| 8 | Technomics Inc | $26.3M | $22.3M | 3.7% | ▼ 1 |
| 9 | Allegheny Science & Technology Corporation | $21.4M | $19.0M | 3.0% | ▼ 1 |
| 10 | Bluewater Federal Solutions, Inc. | $17.3M | $14.3M | 2.5% | — |
| 11 | Edgewater Federal Solutions, Inc. | $10.5M | $7.8M | 1.5% | ▲ 1 |
| 12 | Cherokee Nation Strategic Programs, L.L.C. | $9.3M | $9.5M | 1.3% | ▼ 1 |
| 13 | Southwest Research Institute | $7.2M | $6.0M | 1.0% | ▲ 1 |
| 14 | Potomacwave, Inc. | $6.6M | $5.7M | 0.9% | ▲ 1 |
| 15 | Systematic Management Services, Inc. | $6.6M | $7.8M | 0.9% | ▼ 2 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Bwxt Enrichment Operations, LLC$67.0M → $199.7M (+$132.7M) · now #1
- Techsource, LLC$49.9M → $77.4M (+$27.5M) · now #3
- Parsons Government Services Inc.$28.6M → $45.3M (+$16.8M) · now #5
Largest declines
- Keylogic, LLC$43.5M → $35.8M (−$7.7M) · now #6
- Transpacific Technologies, Inc.$5.0M → $0 (−$5.0M) · no latest-period obligations
- Mele Associates Inc$112.1M → $107.4M (−$4.7M) · now #2
New to this market
8 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Rhinocorps Ltd. Co. | Sep 15, 2026 | $4.8M |
| Systems Planning and Analysis, Inc. | Jun 1, 2026 | $4.0M |
| Street Legal Industries LLC | Aug 6, 2026 | $680K |
| MSS Services, Inc. | May 11, 2026 | $314K |
| Bizsolutions 360 Inc. | Jan 23, 2026 | $105K |
| Kbensko Consulting, LLC | Sep 28, 2026 | $98K |
| Hazen and Sawyer, D.P.C. | Sep 29, 2026 | $92K |
| Siemens Energy Inc | Jan 7, 2026 | $14K |
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 | $704.9M | $485.7M | Up $219.2M (45.1%) |
| Federal Energy Regulatory Commission | $1.0M | $705K | Up $328K (46.5%) |
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 |
|---|---|---|---|
| 89303019FET400015 | Bluewater Federal Solutions, Inc. LABOR PROGRAM MANAGEMENT/IT SUPPORT ENTERPRISE INFORMATION TECHNOLOGY SUPPORT SERVICES TO INCLUDE SOFTWARE DEVELOPMENT AND INTEGRATION, INFRASTRUCTURE ENGINEERING, SYSTEM… | $69.4M | Dec 19, 2026 |
| 89233122FNA400454 | Mele Associates Inc U.S. DEPARTMENT OF ENERGY, NATIONAL NUCLEAR SECURITY ADMINISTRATION'S (DOE/NNSA)BLANKET PURCHASE AGREEMENT (BPA) HOLDERS--RFQ 89233122QNA000228 TECHNICAL, ANALYTICAL, AND… | $47.3M | Mar 31, 2027 |
| 89233122FNA400427 | Systematic Management Services, Inc. U.S. DEPARTMENT OF ENERGY/NATIONAL NUCLEAR SECURITY ADMINISTRATION (DOE/NNSA) OFFICE OF EMERGENCY OPERATIONS (NA-40)TECHNICAL SUPPORT SERVICES | $37.2M | Mar 31, 2027 |
| 89243122FSC400412 | Edgewater Federal Solutions, Inc. OFFICE OF SCIENTIFIC AND TECHNICAL INFORMATION MISSION SUPPORT SERVICES | $42.3M | Jun 30, 2027 |
| 89233123FNA400553 | Mele Associates Inc TECHNICAL SUPPORT SERVICES FOR NEST U.S. DEPARTMENT OF ENERGY (DOE)/NATIONAL NUCLEAR SECURITY ADMINISTRATION (NNSA), OFFICE OF COUNTERTERRORISM AND COUNTER-PROLIFERATION (NA-80) | $57.0M | Sep 24, 2027 |
| 89233122FNA000107 | Parsons Government Services Inc. THE Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO), NA-93, PROVIDES CONTRACT MANAGEMENT AND CONTRACT OVERSIGHT FOR ONGOING CAPITAL PROJECTS AND MAJOR ITEMS OF EQUIPMENT AT… | $52.6M | Sep 27, 2027 |
| 89233125FNA400727 | Techsource, LLC TECHNICAL SUPPORT SERVICES FOR STOCKPILE SERVICES DIVISION (NA-12) | $41.8M | Sep 29, 2027 |
| 89233123FNA400555 | Mele Associates Inc TECHNICAL SUPPORT SERVICES FOR WEAPONS OF MASS DESTRUCTION (WMD) COUNTERTERRORISM TABLETOP EXERCISE (TTX) AND TRAINING PROGRAMS FOR THE DEPARTMENT OF ENERGY (DOE), NATIONAL… | $45.8M | Sep 30, 2027 |
| 89243323CFE000075 | Keylogic, LLC STRATEGIC ANALYSIS SUPPORT SERVICES | $178.9M | Jan 31, 2028 |
| 89243323CFE000074 | KBC Energy Solutions LLC MISSION EXECUTION SUPPORT SERVICES | $171.6M | Mar 31, 2028 |
Common questions
Who are the top DOE contractors for NAICS 541330?
In the latest 12 months, Bwxt Enrichment Operations, LLC ($199.7M), Mele Associates Inc ($107.4M), Techsource, LLC ($77.4M) received the most DOE obligations for engineering services.
How concentrated is this market?
The eight largest primes held 80.8% of positive obligations, and Bwxt Enrichment Operations, LLC alone held 28.3%. 8 contractors won their first obligations in this market during the latest 12 months.
Are any large DOE 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 89303019FET400015 (Bluewater Federal Solutions, Inc., $69.4M obligated), ending Dec 19, 2026. 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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