Top 31 Contractors in PSC F101: Air Quality Support Services, Aug 2025–Jul 2026

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC F101: Air Quality Support Services, FY2025.

The top 10 won 70% of PSC F101 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$7,957,521 Net of deobligations, by contracts coded PSC F101
Contractors
32 Parent companies with an obligation
Largest contractor
Q & A Diversified LLC $2.06 million, 21.2% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 31 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1 $2,055,669
Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
2 $1,214,452
Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; up 2 since Aug 2024–Jul 2025.
3 $944,950
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4 $555,182
Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #9 in FY2025; up 3 since Aug 2024–Jul 2025.
5 $454,790
Rank history: #4 in FY2021, #7 in FY2022, #5 in FY2023, #5 in FY2024 and #6 in FY2025; up 3 since Aug 2024–Jul 2025.
6
Brand Construction LLC
$395,225
Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #12 in FY2025; up 5 since Aug 2024–Jul 2025.
7 $361,024
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
8 $278,236
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9 $275,908
Rank history: not on the FY2021–FY2022 lists, #6 in FY2023, #8 in FY2024 and #5 in FY2025; down 4 since Aug 2024–Jul 2025.
10 $244,081
Rank history: #3 in FY2021, #5 in FY2022, #3 in FY2023, #3 in FY2024 and #2 in FY2025; down 7 since Aug 2024–Jul 2025.
11
Teya Enterprises LLC
$208,869
Rank history: not on the FY2021 list, #10 in FY2022, #7 in FY2023, #10 in FY2024 and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12 $184,686
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13 $172,187
Rank history: #7 in FY2021, #9 in FY2022, #10 in FY2023, #20 in FY2024 and #11 in FY2025; down 3 since Aug 2024–Jul 2025.
14 $167,763
Rank history: #9 in FY2021, not on the FY2022 list, #14 in FY2023, not on the FY2024 list and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15 $160,924
Rank history: #2 in FY2021, #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 14 since Aug 2024–Jul 2025.
16 $128,243
Rank history: #31 in FY2021, #25 in FY2022, #22 in FY2023, #21 in FY2024 and #30 in FY2025; up 10 since Aug 2024–Jul 2025.
17 $99,900
Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
18 $97,260
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19 $87,681
Rank history: #16 in FY2021, #29 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20 $66,674
Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; unchanged since Aug 2024–Jul 2025.
21
Kane Environmental, Inc.
$47,621
Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, #18 in FY2024 and #20 in FY2025; down 3 since Aug 2024–Jul 2025.
22 $33,291
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; down 9 since Aug 2024–Jul 2025.
24 $23,800
Rank history: #25 in FY2021, #16 in FY2022, not on the FY2023–FY2024 lists and #19 in FY2025; down 3 since Aug 2024–Jul 2025.
25 $17,880
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
26 $16,302
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
27 $15,797
Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and #27 in FY2025; unchanged since Aug 2024–Jul 2025.
28 $5,991
Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29 $5,300
Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; up 2 since Aug 2024–Jul 2025.
30 $5,216
Rank history: not on the FY2021 list, #15 in FY2022, #32 in FY2023, not on the FY2024 list and #28 in FY2025; down 2 since Aug 2024–Jul 2025.
31
Burychka DRT LLC
$2,704
Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
Show 6 more

31 of 32 contractors listed here. See the rest on GovTribe.

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 $9.68 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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 PSC F101 contractors in Aug 2025–Jul 2026?

1. Q & A Diversified LLC ($2.06M), 2. Verina-Renova JV LLC ($1.21M), 3. University of North Carolina System Office ($945K), 4. Techlaw Consultants Inc. ($555K), 5. American Testing, Inc. ($455K), 6. Brand Construction LLC ($395K), 7. One Nation Innovation ($361K), 8. Richard Grubb and Associates, Inc. ($278K), 9. Bluestone Interspec JV, LLC ($276K), 10. University of North Carolina At Chapel Hill ($244K).

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