Top 25 Contractors in NAICS 92411: Administration of Air and Water Resource and Solid Waste Management Programs, Jul 2025–Jun 2026
Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe
The top 10 won 78% of NAICS 92411 contract dollars from July 2025 through June 2026
Ranking facts
- Contract obligations
- $1,107,086 Net of deobligations, by contracts coded NAICS 92411 or a code under it
- Contractors
- 27 Parent companies with an obligation
- Largest contractor
- Erin Enerji Taahhut Insaat Sanayi VE Ticaret Limited Sirketi $281 thousand, 18.9% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 25 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $280,525 | |||
| 2 | $265,000 | |||
| 3 | $203,774 | |||
| 4 |
Chugai Technos Corporation
Top agencies
|
$108,614 | ||
| 5 | $87,681 | |||
| 6 |
State of Illinois
Top agencies
|
$56,947 | ||
| 7 | $46,649 | |||
| 8 | $41,959 | |||
| 9 | $35,409 | |||
| 10 |
Tetra Tech, Inc.
Top agencies
|
$32,604 | ||
| 11 | $30,471 | |||
| 12 |
White Lab S.R.L.
Top agencies
|
$30,215 | ||
| 13 | $25,000 | |||
| 14 |
Garratt-Callahan Company
Top agencies
|
$20,790 | ||
| 15 |
Schrass GMBH
Top agencies
|
$19,462 | ||
| 16 | $18,897 | |||
| 17 |
Department of Environment & Conservation Tennessee
Top agencies
|
$17,222 | ||
| 18 |
Integrated Water Systems W.L.L.
Top agencies
|
$15,464 | ||
| 19 | $11,162 | |||
| 20 | $10,000 | |||
| 21 |
City of Livermore
Top agencies
|
$4,916 | ||
| 22 | $4,800 | |||
| 23 | $3,361 | |||
| 24 | $2,940 | |||
| 25 | $1,304 |
25 of 27 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 92411
| Code | Net obligations | Largest contractor |
|---|---|---|
| 924110 Administration of Air and Water Resource and Solid Waste Management Programs | $1,107,086 | Erin Enerji Taahhut Insaat Sanayi VE Ticaret Limited Sirketi |
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $1.49 million obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Jul 2024–Jun 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 NAICS 92411 contractors in Jul 2025–Jun 2026?
1. Erin Enerji Taahhut Insaat Sanayi VE Ticaret Limited Sirketi ($281K), 2. Al Department Environmental Management ($265K), 3. Upper Mississippi River Basin Association ($204K), 4. Chugai Technos Corporation ($109K), 5. Montana Department of Environmental Quality ($87.7K), 6. State of Illinois ($56.9K), 7. Texas Commission On Environmental Quality ($46.6K), 8. Mojave Desert Air Quality Management District ($42K), 9. White Mountain Apache Tribe ($35.4K), 10. Tetra Tech, Inc. ($32.6K).
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