NAICS 541620 · federal market

Environmental Consulting Services federal contracts

Who buys NAICS 541620 (Environmental Consulting Services) work, who wins it, and what's open right now — from FY2026 USAspending awards and live SAM.gov solicitations.

Contract data as of Oct 18, 2026 (USAspending) · recent coverage verified weekly

Obligated · FY2026
$558.9M
Q4 FY2026 vs prior quarter: +202%
Contract awards · FY2026
1,259
new awards with a start date in the window
Open opportunities
9
active on SAM.gov now
Recompetes · next 12 months
1,225
$1.2B in expiring contracts
SBA small-business size standard
$19M average annual receipts
Distinct buying agencies
24
Average award
$444K
Trend

Quarter over quarter

QuarterAwardsObligatedChange
Q1 FY2026135$69.8M—
Q2 FY2026308$146.9M+110%
Q3 FY2026260$85.1M-42%
Q4 FY2026556$257.0M+202%

Federal fiscal quarters (Q1 = Oct–Dec). Awards are counted in the quarter they start; obligations are the award's obligated amount.

Competition

Top contractors · FY2026

#ContractorObligatedAwardsShare
1VERNADERO GROUP INC$63.4M1011.4%
2GENERAL DYNAMICS CORP$40.1M87.2%
3GULF SOUTH RESEARCH CORP$37.4M96.7%
4THE CADMUS GROUP LLC$25.8M224.6%
5ECO & ASSOCIATES, INC.$25.7M74.6%
6TETRA TECH, INC.$23.7M614.2%
7TIERRA RIGHT OF WAY SERVICES LTD$22.6M44.0%
8TOEROEK ASSOCIATES, INC.$17.0M513.0%
9EASTERN RESEARCH GROUP INC$15.4M562.8%
10WES HOLDINGS, INC.$15.2M272.7%

Registrations are rolled up to their corporate parent (USAspending parent UEI), so a company with several SAM registrations ranks once.

Where the money goes

Top agencies buying NAICS 541620

Set-asides

Set-aside mix

Set-aside typeObligatedShare
Small business set-aside$31.7M43.9%
8(a)$12.1M16.7%
SDVOSB$4.3M6.0%
WOSB / EDWOSB$5.1M7.0%
HUBZone$17K0.0%
Other (Indian economic enterprise, veteran, …)$254K0.4%
No set-aside (full & open)$18.9M26.1%

Share of obligations on awards whose set-aside type is recorded — 13% of this market's dollars. Most USAspending bulk-archive records leave the field blank, so blank awards are excluded rather than counted as full & open.

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NAICS 541620 by agency

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Related NAICS codes (5416xx)

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Agencies buying this work

Source: USAspending.gov contract awards (prime awards with a start date from Oct 1, 2025 through Sep 30, 2026), SAM.gov contract opportunities, and SBA size standards. Recompetes are contracts whose final end date — options included — falls in the next 12 months. Figures are recomputed when a new USAspending load lands. See our data sources.