NAICS 541620: expiring federal contracts in Environmental Consulting Services

1,911 prime contracts under NAICS 541620 reach the end of their current period of performance within 365 days — the window in which a recompete is prepared, not announced. 99 of them end within 30 days.

Data as of October 20, 2026, from USAspending.

Expiring: 1,911; within 365 days
In the next 30 days: 99; 438 within 90 days
Current holders: 581; across 22 agencies
Obligated to date: $2.1B; median $266.1K

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.

Definition: 2022 NAICS, U.S. Census Bureau.

The 10 soonest to end

Ordered by end date. Every identifier links to the award on USAspending.

The 10 contracts under NAICS 541620 that end soonest
Current holder	Agency	State	Ends	Value	Renewal score
WESTON-TECHLAW JV LLC 68HERL26F0106 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	GA	Oct 20, 2026	$88,341	10few signals No option periods left (current end date is the potential end date)
FMF PANDION 75H70324F80005 — open this award on USAspending	Department of Health and Human Services Indian Health Service	CA	Oct 20, 2026	$70,046	70likely recompete Held 2 consecutive awards since 2023 1 offer received Set-aside applies (8(A) SOLE SOURCE)
VERNADERO GROUP INC W912P626FA010 — open this award on USAspending	Department of Defense Department of the Army	IL	Oct 20, 2026	$34,894	25some signals Set-aside applies (SMALL BUSINESS SET ASIDE - TOTAL) No option periods left (current end date is the potential end date)
CRITIGEN LLC 140L0621F0294 — open this award on USAspending	Department of the Interior Bureau of Land Management	CO	Oct 21, 2026	$3,455,558	30some signals 4 options have been exercised No option periods left (current end date is the potential end date)
ECOSYSTEM PLANNING & RESTORATION LLC 68HERC23F0481 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	TX	Oct 21, 2026	$353,793	30some signals 2 options have been exercised No option periods left (current end date is the potential end date)
HORSLEY WITTEN GROUP, INC. 68HERC25F0221 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	MA	Oct 21, 2026	$277,833	10few signals No option periods left (current end date is the potential end date)
WESTON-TECHLAW JV LLC 68HERH25F0034 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	VA	Oct 22, 2026	$46,273	10few signals No option periods left (current end date is the potential end date)
ACK3 CONSULTING, LLC 75N99026F00004 — open this award on USAspending	Department of Health and Human Services National Institutes of Health	MD	Oct 23, 2026	$300,700	0few signals
ACK3 CONSULTING, LLC 75N99026F00001 — open this award on USAspending	Department of Health and Human Services National Institutes of Health	MD	Oct 23, 2026	$170,939	25some signals Limited competition (NOT AVAILABLE FOR COMPETITION) No option periods left (current end date is the potential end date)
TOEROEK ASSOCIATES, INC. 68HE0526F0031 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	IL	Oct 24, 2026	$199,827	10few signals No option periods left (current end date is the potential end date)

1,901 more expiring contracts in this list

This page shows the 10 soonest of 1,911 contracts under NAICS 541620 that end within 365 days. A subscription opens the rest, with filters, renewal scores and a weekly email when something new enters your window.

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Who buys in this industry

Environmental Protection Agency520 expiring
Department of Defense417 expiring
Department of the Interior359 expiring
Department of Veterans Affairs144 expiring
Department of Commerce85 expiring

NAICS 541620 contracts: questions vendors ask

What is NAICS code 541620?

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. 1,911 federal contracts under this code end within 12 months.

How many federal contracts under NAICS 541620 are expiring?

1,911 prime contracts in Environmental Consulting Services (NAICS 541620) reach the end of their current period of performance within 12 months: 99 within 30 days and 438 within 90. They are held by 581 different vendors and were bought by 22 agencies. The figures are counted from USAspending, the government’s own record of prime contract awards, and rebuilt nightly.

When does the next NAICS 541620 contract end?

The soonest ends on Oct 20, 2026. The table on this page lists the 10 soonest to end, in order, with the incumbent, the awarding agency, the end date and the amount obligated so far. An end date is the date in the award record, not a forecast.

Which agencies buy environmental consulting services?

The agencies with the most expiring work here are Environmental Protection Agency (520 contracts), Department of Defense (417 contracts), Department of the Interior (359 contracts). In total 22 agencies have work under Environmental Consulting Services (NAICS 541620) ending within 12 months.

Does an expiring contract mean a recompete is coming?

Not on its own. A period of performance that ends is work somebody has to win again, but agencies also extend, consolidate, insource or cancel, and the award record does not say which in advance. Findingbase shows the dates and a renewal score built from five fixed rules, with the reasons each one fired; it does not predict the outcome and does not publish solicitations. The solicitation, when there is one, appears on SAM.gov.

How this page is built

Every contract here comes from USAspending, the federal government’s own record of prime contract awards. A contract appears when its current period of performance ends within 365 days. The table lists the 10 soonest to end — not the largest, and not the highest scoring — so it is a sample of what is really coming rather than a showcase. Award identifiers link back to the source. This page was last rebuilt for Oct 20, 2026.

10 of the 10 contracts in the table above carry a renewal score, and 1,911 of the 1,911 in the whole list do. A contract with no score has not been through scoring yet: that is not a low score, it is no score. Scoring works through the soonest expiry dates first.

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