1 active solicitation·1 federal agency·Last refreshed Jul 11, 2026
Active opportunities in NAICS 541620
Refreshed continuously from SAM.gov and partner agencies. Showing the 1 most-urgent active solicitation.
Top primes in NAICS 541620
Federal primes ranked by total obligated dollars under NAICS 541620 over the last 5 fiscal years. Source: USAspending.gov.
#1
PROJECT ENHANCEMENT CORPORATION8 contracts · Department of Energy
$398.8M
#2
EASTERN RESEARCH GROUP INC8 contracts · Environmental Protection Agency
$172.0M
#3
LOCKHEED MARTIN SERVICES, LLC1 contract · Environmental Protection Agency
$139.9M
#4
ENVIRONMENTAL INCENTIVES, INC.4 contracts · Agency for International Development
$135.0M
Agencies buying NAICS 541620
The top federal customers historically active in NAICS 541620by obligated dollars. Match your past performance to the agency that’s most likely to write your next contract.
#1
Environmental Protection Agency44 contracts
$1.2B
#2
Department of Energy11 contracts
$510.2M
#3
Agency for International Development11 contracts
$274.7M
#4
Department of Commerce6 contracts
$273.5M
Frequently asked questions
What is NAICS 541620?
NAICS 541620 is the federal industry code for Environmental Consulting Services. The Census Bureau maintains the NAICS taxonomy; federal contracting officers use it to classify solicitations and confirm bidder eligibility.
How do I bid on federal contracts as a small business in NAICS 541620?
Register your business in SAM.gov, get a UEI, and confirm your NAICS code matches the solicitation's primary NAICS. Then write a capability statement that maps your past performance to the work in the RFP. Themis automates the matching and gives you a free AI brief for every active opportunity.
Do I need a SAM.gov registration to bid?
Yes — every federal contract award above the micro-purchase threshold requires the vendor to have an active SAM.gov registration with a Unique Entity Identifier (UEI) and the relevant NAICS codes listed on the registration.
What set-asides apply to NAICS 541620?
Common federal set-asides — Small Business (SBA), 8(a), HUBZone, SDVOSB, WOSB, EDWOSB — apply per solicitation, not per NAICS code. Each opportunity declares its own set-aside; Themis displays the eligibility class on every card so you can filter to ones you qualify for.
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