NAICS 541620: expiring federal contracts in Environmental Consulting Services, Illinois

What NAICS 541620 covers, and the national list →

NAICS 541620, performed in Illinois. 26 prime contracts reach the end of their current period of performance within 365 days, 3 of them within 30. The national list for this code covers every state, and every industry in Illinois is on one page.

Data as of October 21, 2026, from USAspending.

Expiring: 26; within 365 days in Illinois
In the next 30 days: 3; 9 within 90 days
Current holders: 16; across 7 agencies
Obligated to date: $7.9M; median $165.8K

The 10 soonest to end

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

The 10 contracts under NAICS 541620 in Illinois that end soonest
Current holder	Agency	Ends	Value	Renewal score
TOEROEK ASSOCIATES, INC. 68HE0526F0031 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	Oct 24, 2026	$199,827	10few signals No option periods left (current end date is the potential end date)
TROPICAL ENVIRONMENTAL INC 36C25226N0223 — open this award on USAspending	Department of Veterans Affairs Department of Veterans Affairs	Oct 30, 2026	$66,994	10few signals No option periods left (current end date is the potential end date)
ENVIRONMENTAL CONSULTING GROUP, INC. 47PF0023F0406 — open this award on USAspending	General Services Administration Public Buildings Service	Oct 31, 2026	$129,364	10few signals No option periods left (current end date is the potential end date)
TROPICAL ENVIRONMENTAL INC 36C25226N0178 — open this award on USAspending	Department of Veterans Affairs Department of Veterans Affairs	Nov 29, 2026	$33,664	10few signals No option periods left (current end date is the potential end date)
TETRA TECH, INC. 68HE0525F0129 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	Nov 30, 2026	$131,683	25some signals 1 offer received No option periods left (current end date is the potential end date)
TETRA TECH, INC. 68HE0525F0115 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	Dec 1, 2026	$265,011	25some signals 1 offer received No option periods left (current end date is the potential end date)
TROPICAL ENVIRONMENTAL INC 36C25226N0114 — open this award on USAspending	Department of Veterans Affairs Department of Veterans Affairs	Dec 18, 2026	$52,558	10few signals No option periods left (current end date is the potential end date)
MENDEZ GROUP, INC N4008525F0146 — open this award on USAspending	Department of Defense Department of the Navy	Dec 31, 2026	$64,650	25some signals Limited competition (NOT AVAILABLE FOR COMPETITION) No option periods left (current end date is the potential end date)
EASTERN RESEARCH GROUP INC 68HE0524F0010 — open this award on USAspending	Environmental Protection Agency Environmental Protection Agency	Jan 1, 2027	$276,094	25some signals 2 offers received No option periods left (current end date is the potential end date)
ENVIRONMENTAL CONSULTING GROUP, INC. 2033H626F00046 — open this award on USAspending	Department of the Treasury Bureau of the Fiscal Service	Feb 4, 2027	$42,777	15few signals Set-aside applies (SMALL BUSINESS SET ASIDE - TOTAL)

16 more expiring contracts in this list

This page shows the 10 soonest of 26 contracts under NAICS 541620 in Illinois 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 Illinois

Environmental Protection Agency14 expiring
Department of Veterans Affairs6 expiring
Department of Defense2 expiring
Department of Commerce1 expiring
Department of the Interior1 expiring

NAICS 541620 in Illinois: questions vendors ask

How many federal contracts under NAICS 541620 in Illinois are expiring?

26 prime contracts in Environmental Consulting Services (NAICS 541620) in Illinois reach the end of their current period of performance within 12 months: 3 within 30 days and 9 within 90. They are held by 16 different vendors and were bought by 7 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 in Illinois end?

The soonest ends on Oct 24, 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 in Illinois?

The agencies with the most expiring work here are Environmental Protection Agency (14 contracts), Department of Veterans Affairs (6 contracts), Department of Defense (2 contracts). In total 7 agencies have work under Environmental Consulting Services (NAICS 541620) in Illinois 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 21, 2026.

10 of the 10 contracts in the table above carry a renewal score, and 26 of the 26 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.