Federal Contracts in NAICS 541620 (Environmental Consulting Services)

770 total opportunities indexed 194 award notices 576 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
HISTORICAL RESEARCH ASSOCIATES, INC. CAGE 0KCU2	4	$50.5M
MABBETT & ASSOCIATES, INC. CAGE 361J7	4	$602.9M
WOODS CANYON ARCHAEOLOGICAL CONSULTANTS, INC. CAGE 3GXZ1	3	$546K
C.J. SETO SUPPORT SERVICES, LLC CAGE 1NAP7	3	$900.0M
LRS FEDERAL LLC CAGE 4B5X4	3	$900.0M
FE-CT JV, LLC CAGE 01U70	3	$900.0M
STELL SIA SALAS O'BRIEN LLC CAGE 97R33	3	$900.0M
Pinyon-Sundance JV, LLC CAGE 05R93	3	$54.1M
SWCA, INCORPORATED CAGE 0WHS6	3	$1.7M
ESPINOZA CULTURAL SERVICES, LLC CAGE 5ZT77	2	$163K
AECOM TECHNICAL SERVICES, INC. CAGE 4L767	2	$456K
EGC, INC. CAGE 55A09	2	$59K
BIO-WEST INC CAGE 0K4M3	2	$51.0M
JWJ CONSULTING, LLC CAGE 7PZP7	2	$40K
ZIMMETRY ENVIRONMENTAL MANAGEMENT, CORP CAGE 3GXC4	2	$8.0M
STELL ENVIRONMENTAL ENTERPRISES INC CAGE 3S0T3	2	$63K
ENVIRONMENTAL DATA SERVICES, LIMITED CAGE 07LL5	2	$19K
MARSTEL-DAY, LLC CAGE 1WA73	2	$477K
AFS-IEI JV, LLC CAGE 15U38	2	$8.0M
Colorado State University CAGE 4B575	2	$516K

Award Trends (2024-2026)

Year	Awards	Total Obligated
2026	108	$545.0M
2025	62	$5.3B
2024	24	$148.4M

Top Buying Agencies

Agency	Solicitations
INTERIOR, DEPARTMENT OF THE	210
DEPT OF DEFENSE	182
VETERANS AFFAIRS, DEPARTMENT OF	87
AGRICULTURE, DEPARTMENT OF	76
ENVIRONMENTAL PROTECTION AGENCY	69
GENERAL SERVICES ADMINISTRATION	60
COMMERCE, DEPARTMENT OF	16
TRANSPORTATION, DEPARTMENT OF	15
ENERGY, DEPARTMENT OF	12
HEALTH AND HUMAN SERVICES, DEPARTMENT OF	10

Set-Aside Breakdown

Set-Aside Type	Opportunities
Open / Full and Open	371
SBA	272
NONE	50
SDVOSBC	30
8A	29
WOSB	5
8AN	5
ISBEE	4
WOSBSS	2
SBP	2

Active Opportunities

Title	Agency	Deadline
Kiowa Grasslands Heritage Survey Cibola National Forest	AGRICULTURE, DEPARTMENT OF	2026-07-15T01:00:00+02:00
Notice of Intent to Award a BPA Call Order	AGRICULTURE, DEPARTMENT OF	2026-07-25T05:59:00+02:00
Conex Refurbishment, Maxwell AFB, Al	DEPT OF DEFENSE	2026-07-16T19:00:00+02:00
Stuttgart Tree Database services	DEPT OF DEFENSE	2026-07-15T12:00:00+02:00
NRCS Montana - National Resources Inventory (NRI) Grazing land Field Study Data Collection	AGRICULTURE, DEPARTMENT OF	2026-07-14T23:00:00+02:00
COAST GUARD YARD WASTEWATER ENVIRONMENTAL SAMPLING AND ANALYSIS	HOMELAND SECURITY, DEPARTMENT OF	2026-07-20T16:00:00+02:00
Environmental Health and Safety Industrial Hygiene Services for Maryland Army National Guard (MDARNG) Maintenance Facili	DEPT OF DEFENSE	2026-07-28T17:00:00+02:00
R499--Confined Space Inventory Service	VETERANS AFFAIRS, DEPARTMENT OF	2026-07-20T22:30:00+02:00
Environmental Compliance Program Management for USAG Daegu	DEPT OF DEFENSE	2026-07-31T06:00:00+02:00
VAMMS Unit design Optimization of vehicle add-on m	ENVIRONMENTAL PROTECTION AGENCY	2026-08-06T18:00:00+02:00

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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