Federal Contracts in NAICS 541620 (Environmental Consulting Services)

572 total opportunities indexed 152 award notices 420 open / pre-award

What is NAICS 541620?

Providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, the restoration of contaminated land and water, and regulatory compliance. EPA Superfund site assessments, NEPA compliance support for federal construction, and USACE Section 404/401 wetlands permitting are three high-volume federal use cases. DOI BLM and USFWS also buy extensively for public-lands stewardship.

SBA small-business size standard: $19.0M average annual receipts

Top Awardees in NAICS 541620

Vendor	Awards	Total Value
Jessy's Tag Service	36	$251.2M
MABBETT & ASSOCIATES, INC. CAGE 361J7	4	$602.9M
STELL SIA SALAS O'BRIEN LLC CAGE 97R33	3	$900.0M
LRS FEDERAL LLC CAGE 4B5X4	3	$900.0M
C.J. SETO SUPPORT SERVICES, LLC CAGE 1NAP7	3	$900.0M
SWCA, INCORPORATED CAGE 0WHS6	3	$1.7M
HISTORICAL RESEARCH ASSOCIATES, INC. CAGE 0KCU2	3	$501K
FE-CT JV, LLC CAGE 01U70	3	$900.0M
WESTON-TECHLAW JV LLC CAGE 8HBB0	2	$41K
AMERIPRO GROUP LLC CAGE 8EPG6	2	$2.0M
EAGLE SYNERGISTIC OPTIMIZING TECHNOLOGIES, LLC CAGE 84P33	2	$301K
EGC, INC. CAGE 55A09	2	$59K
AECOM TECHNICAL SERVICES, INC. CAGE 4L767	2	$456K
Colorado State University CAGE 4B575	2	$516K
WOODS CANYON ARCHAEOLOGICAL CONSULTANTS, INC. CAGE 3GXZ1	2	$505K
ZIMMETRY ENVIRONMENTAL MANAGEMENT, CORP CAGE 3GXC4	2	$8.0M
AFS-IEI JV, LLC CAGE 15U38	2	$8.0M
ENVIRONMENTAL DATA SERVICES, LIMITED CAGE 07LL5	2	$19K
Oneida-Stantec JV LLC CAGE 9VWT6	1	$1.5M
NELSON LAND MANAGEMENT LLC CAGE 9RKJ2	1	$12K

Award Trends (2024–2026)

Year	Awards	Total Obligated
2026	66	$147.9M
2025	62	$5.3B
2024	24	$148.4M

Top Buying Agencies

Agency	Solicitations
INTERIOR, DEPARTMENT OF THE	152
DEPT OF DEFENSE	138
VETERANS AFFAIRS, DEPARTMENT OF	62
ENVIRONMENTAL PROTECTION AGENCY	61
GENERAL SERVICES ADMINISTRATION	51
AGRICULTURE, DEPARTMENT OF	42
TRANSPORTATION, DEPARTMENT OF	11
JUSTICE, DEPARTMENT OF	10
COMMERCE, DEPARTMENT OF	10
HOUSING AND URBAN DEVELOPMENT, DEPARTMENT OF	9

Set-Aside Breakdown

Set-Aside Type	Opportunities
Open / Full and Open	286
SBA	192
NONE	37
8A	26
SDVOSBC	20
8AN	5
WOSB	3
ISBEE	2
SBP	1

Active Opportunities

Title	Agency	Deadline
R--Superfund Technical Assessment and Response Team (	ENVIRONMENTAL PROTECTION AGENCY	2026-05-13T00:00:00+00:00
B--RFI BOEM Enhancing Spill Risk Analysis	INTERIOR, DEPARTMENT OF THE	2026-06-05T00:00:00+00:00
Industrial Hygiene Testing and Survey	DEPT OF DEFENSE	2026-05-12T10:00:00-04:00
Environmental and Social Technical Assistance	UNITED STATES INTERNATIONAL DEVELOPMENT FINANCE CORPORATION	2026-05-21T14:00:00-04:00
CES Cross-Connection Survey	DEPT OF DEFENSE	2026-05-13T10:00:00-07:00
FY26 KFO RAPTOR SURVEYS	INTERIOR, DEPARTMENT OF THE	2026-05-14T17:00:00-05:00
H--Subpart J Test Oil Storage, Repack & Distribution	ENVIRONMENTAL PROTECTION AGENCY	2026-05-14T00:00:00+00:00
F--NOAA Fisheries Wide Chemical Emergency Response	COMMERCE, DEPARTMENT OF	2026-05-12T00:00:00+00:00
Superior National Forest Rare Plant Survey	AGRICULTURE, DEPARTMENT OF	2026-05-20T00:00:00+00:00
Ottawa National Forest Silver Branch Plant Survey 3	AGRICULTURE, DEPARTMENT OF	2026-05-22T00:00:00+00:00

How to Bid Federal Contracts in NAICS 541620

EPA Regional Advisory Contracts (RAC) and Environmental Services Acquisition Team (ESAT) IDIQs are the flagship vehicles. USACE CEMRD and CENWD have large environmental A-E IDIQs. Small-business set-asides are the norm — the sector is dominated by HUBZone-located environmental firms in rural contaminated areas. NEPA expertise + state-specific natural-resources licenses are key differentiators.

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