NAICS 541620 · Professional, Scientific, and Technical Services
NAICS 541620: Environmental Consulting Services
This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry.
$19M receiptsSBA size standard
0open contracts now
95posted in the last 12 months
5416Management, Scientific, and Technical Consulting Services
Open government contracts under NAICS 541620
Nothing is open under NAICS 541620 today. New solicitations post every day; search all open contracts or check back.
What NAICS 541620 covers
This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry.
Not in this code
Establishments primarily engaged in environmental remediation are classified in Industry 562910, Remediation Services.
Establishments primarily engaged in providing environmental engineering services are classified in Industry 541330, Engineering Services.
Establishments primarily engaged in providing environmental testing services are classified in Industry 541380, Testing Laboratories and Services.
Establishments primarily engaged in promoting the preservation and protection of the environment are classified in U.S. Industry 813312, Environment, Conservation and Wildlife Organizations.
Establishments primarily engaged in individual activities as part of an ecological restoration project are classified according to the primary activity.
Government establishments primarily engaged in administering, overseeing, and managing governmental ecological restoration programs are classified in Industry 924110, Administration of Air and Water Resource and Solid Waste Management Programs.
SBA size standard
A business is small under NAICS 541620 if it has no more than $19 million in average annual receipts (averaged over the last five completed fiscal years, including affiliates).
Source: SBA Table of Size Standards, effective 2023-03-17. Always check the size standard printed in the solicitation itself.
Who buys it
Departments that posted the most NAICS 541620 solicitations in the last two years:
Alaska marmot survey · Interior · posted September 11, 2026
F--Pine Ridge Environmental Assessment for Great Plai · Interior · posted September 11, 2026
Do this kind of work?
Send XL Eagle your price on an open environmental consulting services job. We write and submit the bid under our registrations. If we win, you do the work at your price. No fees.
NAICS 541620 is Environmental Consulting Services. This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry.
What is the SBA size standard for NAICS 541620?
The size standard for NAICS 541620 is $19 million in average annual receipts. Firms at or under it count as small businesses for contracts assigned this code.
Are there government contracts for environmental consulting services?
None are open under NAICS 541620 today, but 95 were posted in the last 12 months. New ones post daily.
Can I bid on NAICS 541620 contracts without registering in SAM.gov?
You need an active SAM.gov registration to win a federal contract in your own name. If you would rather skip that, XL Eagle can bid as the prime contractor using your price, and you do the work as our subcontractor.