PSC B510: Special Studies/Analysis – Environmental Assessments
B510 is the product and service code (PSC) federal agencies use for special studies/analysis – environmental assessments, in the special studies – not r and d group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 4
- Spending, FY2026
- $195 million
- Share to small businesses
- 61%
Open contracts with PSC B510, due soonest
- Environmental Disposal Liabilities Survey
✦ The VA's Mann-Grandstaff medical center in Spokane, WA wants a contractor to do an Environmental Disposal Liabilities (EDL) survey of the main campus.
Due in 10 daysOct 19, 2026
- GUSG HABITAT HYDRO-LOGIC RESTORATION 202
✦ The Bureau of Land Management (Colorado State Office) wants a contractor to improve drainage on rural roads on government land near Crawford, Colorado, to help habitat for the…
Due in 12 daysOct 22, 2026
- Blanket Purchase Agreement of Laboratory Analyses Services for Worldwide Support
✦ The Navy's Engineering and Expeditionary Warfare Center (NAVFAC EXWC, Port Hueneme, CA) wants to set up Blanket Purchase Agreements with up to three accredited environmental…
Due in 28 daysNov 6, 2026
Where B510 sits in the PSC Manual
- Category: Service
- Group B: Special Studies/Analysis, Not R&D
- Group B5: Special Studies – Not R and D
- Code B510: Special Studies/Analysis – Environmental Assessments
NAICS codes used with PSC B510
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with B510 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 541620 | Environmental Consulting Services | $346.9 million |
| 562910 | Remediation Services | $75.3 million |
| 541690 | Other Scientific and Technical Consulting Services | $65.1 million |
| 541380 | Testing Laboratories and Services | $55.9 million |
| 541330 | Engineering Services | $19.6 million |
| 541990 | All Other Professional, Scientific, and Technical Services | $10.1 million |
| 237990 | Other Heavy and Civil Engineering Construction | On 1 open |
Who buys under PSC B510
Agencies with the most contract dollars under B510 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Environmental Protection Agency | $129.9 million |
| U.S. Customs and Border Protection | $122.4 million |
| Department of the Army | $119.4 million |
| Department of the Navy | $32.5 million |
| Bureau of Reclamation | $23.9 million |
| National Oceanic and Atmospheric Administration | $22.5 million |
| Department of Energy | $16.3 million |
| Federal Acquisition Service | $16.1 million |
On open notices right now, the most B510 work comes from Dept of Defense, Department of the Interior and Department of Veterans Affairs.
Federal spending under PSC B510 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $244.4 million |
| FY2025 | $163.4 million |
| FY2026 | $195 million |
| FY2027 (so far) | $213,807 |
Who wins PSC B510 contracts
| Company | Obligated, last 3 years |
|---|---|
| Tetra Tech, Inc. | $53.7 million |
| Vernadero Group Inc | $36.1 million |
| Gulf South Research Corp | $30.8 million |
| Minatoishi Palumbo Architects, Inc. | $29.5 million |
| HDR Environmental, Operations and Construction, Inc. | $25.8 million |
| Dawson Solutions, Inc. | $25 million |
| Kemron Environmental Services, Inc. | $24.6 million |
| Eastern Research Group Inc | $20.7 million |
| WSP USA Solutions Inc | $17.9 million |
| Jacobs Engineering Group Inc. | $16.6 million |
Related PSC codes
- B502 Special Studies/Analysis – Air Quality
- B503 Special Studies/Analysis – Archeological/Paleontological
- B504 Special Studies/Analysis – Chemical/Biological
- B505 Special Studies/Analysis – Cost Benefit
- B506 Special Studies/Analysis – Data (Other Than Scientific)
- B507 Special Studies/Analysis – Economic
- B509 Special Studies/Analysis – Endangered Species: Plant/Animal
- B513 Special Studies/Analysis – Feasibility (Non – Construction)
- B516 Special Studies/Analysis – Animal/Fisheries
- B517 Special Studies/Analysis – Geological
Frequently asked questions
What is PSC B510?
B510 is the service code in the federal Product and Service Code (PSC) Manual for special studies/analysis – environmental assessments, under B (Special Studies/Analysis, Not R&D) and B5 (Special Studies – Not R and D). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC B510?
Most federal contract dollars under PSC B510 go with NAICS 541620 (Environmental Consulting Services), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC B510?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 4 open notices use PSC B510 right now. FedReady can match new ones to your business and email you, free.