Top EPA engineering services contractors
In the 12 months ending Oct 5, 2026, the Environmental Protection Agency obligated $57.7M in net prime contract dollars under NAICS 541330, down 12.4% from $65.8M in the preceding 12 months. 31 prime contractors received positive obligations, and 12 of them accounted for 80% of that spend.
Prime contracts funded by the Environmental Protection Agency. 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 EPA 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 | HDR-OBG a Joint Venture | $7.7M | $7.1M | 13.2% | ▲ 2 |
| 2 | CDM Federal Programs Corporation | $7.2M | $8.3M | 12.4% | — |
| 3 | Noresco, LLC | $7.1M | $3.2M | 12.2% | ▲ 4 |
| 4 | WSP USA Solutions Inc | $4.3M | $14.2M | 7.4% | ▼ 3 |
| 5 | M. C. Dean, Inc. | $4.2M | $4.8M | 7.3% | ▼ 1 |
| 6 | General Dynamics Information Technology, Inc. | $3.6M | $3.5M | 6.2% | — |
| 7 | Kalman & Company, Inc. | $2.6M | $1.6M | 4.5% | ▲ 5 |
| 8 | Arcadis U.S., Inc. | $2.6M | $1.8M | 4.4% | ▲ 2 |
| 9 | Energy Systems Group, LLC | $2.4M | $1.8M | 4.0% | ▲ 2 |
| 10 | Dynotec-KZF JV, LLC | $2.3M | $0 | 4.0% | New |
| 11 | Hana Engineers & Consultants LLC | $2.3M | $778K | 3.9% | ▲ 7 |
| 12 | Amentum Technology, Inc. | $2.1M | $1.9M | 3.7% | ▼ 3 |
| 13 | Richard Mcelhiney Architect, PLLC | $1.7M | $718K | 2.9% | ▲ 7 |
| 14 | KAL Architects, Inc. | $1.5M | $0 | 2.6% | New |
| 15 | Jacobs Government Services Company | $1.3M | $3.8M | 2.3% | ▼ 10 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Noresco, LLC$3.2M → $7.1M (+$3.9M) · now #3
- Dynotec-KZF JV, LLC$0 → $2.3M (+$2.3M) · now #10
- Hana Engineers & Consultants LLC$778K → $2.3M (+$1.5M) · now #11
Largest declines
- WSP USA Solutions Inc$14.2M → $4.3M (−$9.9M) · now #4
- Jacobs Government Services Company$3.8M → $1.3M (−$2.5M) · now #15
- Jacobs Engineering Group Inc.$1.4M → −$114K (−$1.5M) · no latest-period obligations
New to this market
3 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Dynotec-KZF JV, LLC | Apr 22, 2026 | $2.3M |
| KAL Architects, Inc. | Aug 11, 2026 | $1.5M |
| GEO Consultants Corporation | Jul 31, 2026 | $350K |
Where the money comes from
Funding sub-agencies within the Environmental Protection Agency, 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 |
|---|---|---|---|
| Environmental Protection Agency | $57.7M | $65.8M | Down $8.2M (12.4%) |
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 |
|---|---|---|---|
| 68HERC21C0055 | Process Applications, Inc. TECHNICAL SUPPORT FOR DRINKING WATER OPTIMIZATION PROGRAM | $5.0M | Oct 30, 2026 |
| W912DQ22F3000 | WSP USA Solutions Inc EO14042 DIAMOND ALKALI SUPERFUND REMEDIAL DESIGN OVERSIGHT LOWER 8.3 MILES OF THE LOWER PASSAIC RIVER | $7.1M | Nov 11, 2026 |
| 140D0426F0061 | M. C. Dean, Inc. ORDER 1 BASELINE SYSTEM SUPPORT AND OPERATION AND MAINTENANCE (O&M) FOR SES BPA | $2.9M | Dec 4, 2026 |
| W912DQ22F3014 | WSP USA Solutions Inc TASK ORDER - POST-CONSTRUCTION OPERATION, MAINTENANCE, AND MONITORING (OM&M) PROGRAM FOR THE UPPER HUDSON RIVER REMEDY (OPERABLE UNIT 1 [OU1]AND OU2) | $9.2M | Dec 13, 2026 |
| W912DQ22F3002 | WSP USA Solutions Inc REMEDIAL INVESTIGATION/FEASIBILITY STUDY | $5.9M | Feb 13, 2027 |
| W912DQ21F3052 | Arcadis U.S., Inc. ARCHITECT AND ENGINEERING SERVICES FOR PROPERTY INVESTIGATIONS AND REMEDIAL DESIGNS FOR WELSBACH/GENERAL GAS MANTLE SUPERFUND SITE IN CAMDEN & GLOUSCESTER CITY, NJ | $13.8M | Feb 28, 2027 |
| 47QFLA22F0075 | General Dynamics Information Technology, Inc. SCIENTIFIC AND TECHNICAL SUPPORT FOR THE GREAT LAKES NATIONAL PROGRAM OFFICE | $21.3M | Mar 19, 2027 |
| 68HERH21F0172 | Kalman & Company, Inc. GS-00F-343CA/68HERH21F0172 AIRBORNE SPECTRAL PHOTOMETRIC ENVIRONMENTAL COLLECTION TECHNOLOGY (ASPECT), DATA PROCESSING, DEVELOPMENT AND SENSOR SUPPORT SERVICES (DPDS) | $9.6M | Jul 7, 2027 |
| W912DQ23F3017 | AECOM Technical Services, Inc. MEEKER AVENUE RI/FS - ARCHITECT-ENGINEERING SERVICES | $6.7M | Mar 12, 2028 |
| W912DQ24F3028 | Jacobs Government Services Company PRP REMEDIAL ACTION OVERSIGHT | $3.0M | Apr 2, 2028 |
Common questions
Who are the top EPA contractors for NAICS 541330?
In the latest 12 months, HDR-OBG a Joint Venture ($7.7M), CDM Federal Programs Corporation ($7.2M), Noresco, LLC ($7.1M) received the most EPA obligations for engineering services.
How concentrated is this market?
The eight largest primes held 67.6% of positive obligations, and HDR-OBG a Joint Venture alone held 13.2%. 3 contractors won their first obligations in this market during the latest 12 months.
Are any large EPA 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 68HERC21C0055 (Process Applications, Inc., $5.0M obligated), ending Oct 30, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
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$751.6MDOE · NAICS 541330
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$286.4MFigures 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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