NAICS 541620: Environmental Consulting Services
Environmental Consulting Services is NAICS code 541620. A business is small under it with $19 million or less in average annual receipts. 10 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- $19 million or less in average annual receipts
- Open contracts now
- 10
- Federal spending, FY2026
- $1.1 billion
- Share won by small businesses
- 60%
- Small businesses registered
- 5,060
Open federal contracts for environmental consulting services
- SDREP Environmental Compliance Support
Due in 1 dayOct 6, 2026
- R10 START VI: Superfund Technical Assessment & Response Team (START) VI
Due in 2 daysOct 6, 2026
- Sources Sought - SLDA NCSO
Due in 5 daysOct 9, 2026
- Legionella Water Testing
Due in 9 daysOct 13, 2026
- AREMP AND WATER SAMPLE ANALYSIS
Due in 11 daysOct 15, 2026
- St. Louis District Environmental Consulting Services
No deadline
What NAICS 541620 covers
The Census Bureau's NAICS index lists these kinds of work under 541620:
- Ecological restoration consulting services
- Environmental reclamation planning services
- Sanitation consulting services
- Site remediation consulting services
- Wetland restoration planning services
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 541620
To count as a small business for a contract assigned NAICS 541620, your business must have $19 million or less in average annual receipts. Receipts are averaged over your last five completed fiscal years.
From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.
Who buys environmental consulting services
Agencies that awarded the most under NAICS 541620 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Environmental Protection Agency | $1.1 billion |
| Department of the Army | $549.2 million |
| National Oceanic and Atmospheric Administration | $302.6 million |
| U.S. Customs and Border Protection | $219.5 million |
| Department of Energy | $212.5 million |
| National Aeronautics and Space Administration | $136.5 million |
| Department of the Navy | $93.7 million |
| Bureau of Land Management | $83.2 million |
Open notices right now come from Dept of Defense (5), Department of the Interior (3), Environmental Protection Agency (1) and Department of Veterans Affairs (1).
Set-asides on open 541620 contracts
- No set-aside (full and open): 6
- Total small business set-aside: 3
- Service-disabled veteran-owned set-aside: 1
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Your competition
5,060 businesses with active SAM.gov registrations are rated small under NAICS 541620, most of them in California (522), Texas (467), Florida (414), Virginia (394) and Maryland (253). Look any of them up with the free CAGE code and UEI lookup.
Federal spending under 541620 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $1.5 billion |
| FY2025 | $1.1 billion |
| FY2026 | $1.1 billion |
| FY2027 (so far) | $2.5 million |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Related NAICS codes
- 541611 Administrative Management and General Management Consulting Services
- 541612 Human Resources Consulting Services
- 541613 Marketing Consulting Services
- 541614 Process, Physical Distribution, and Logistics Consulting Services
- 541618 Other Management Consulting Services
- 541690 Other Scientific and Technical Consulting Services
Frequently asked questions
What is NAICS code 541620?
541620 is the 2022 NAICS code for Environmental Consulting Services. The Census Bureau's index lists work such as ecological restoration consulting services, environmental reclamation planning services, sanitation consulting services under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 541620?
$19 million or less in average annual receipts. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.
Are there government contracts for environmental consulting services?
Yes. 10 federal contract opportunities under NAICS 541620 are open on SAM.gov right now. Agencies obligated about $1.1 billion under this code in fiscal year 2026, according to USAspending.gov.
How do I add NAICS code 541620 to my SAM.gov registration?
Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.
Keep going
- Search other NAICS codes by keyword or company
- How to choose NAICS codes for government contracts
- NAICS codes with the most open federal contracts
FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.