Top 54 Contractors in PSC Z1BA: Maintenance of Air Traffic Control Towers, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 88% of FY2025 PSC Z1BA contract dollars
Ranking facts
- Contract obligations
- $53,824,080 Net of deobligations, by contracts coded PSC Z1BA
- Contractors
- 57 Parent companies with an obligation
- Largest contractor
- The Matthews Group Inc. $14.1 million, 25.6% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 54 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $14,120,332 | |||
| 2 | $10,162,032 | |||
| 3 |
E Corp
Top agencies
|
$9,043,618 | ||
| 4 | $4,450,259 | |||
| 5 | $4,362,415 | |||
| 6 | $2,887,312 | |||
| 7 | $930,814 | |||
| 8 | $930,350 | |||
| 9 | $900,214 | |||
| 10 |
Walsh Federal LLC
Top agencies
|
$891,718 | ||
| 11 | $661,922 | |||
| 12 |
JIM Jam, Inc.
Top agencies
|
$626,967 | ||
| 13 | $624,584 | |||
| 14 | $496,521 | |||
| 15 | $487,974 | |||
| 16 |
Ahtna Builders, LLC
Top agencies
|
$397,283 | ||
| 17 |
Indus Insight, JV
Top agencies
|
$317,351 | ||
| 18 | $297,134 | |||
| 19 |
J & J 2000 Inc.
Top agencies
|
$293,753 | ||
| 20 | $240,952 | |||
| 21 | $187,188 | |||
| 22 | $125,397 | |||
| 23 |
M2 Federal Inc.
Top agencies
|
$114,740 | ||
| 24 |
Dawson Mcg, Inc.
Top agencies
|
$100,063 | ||
| 25 | $86,113 | |||
| 26 |
Weil Construction Inc
Top agencies
|
$78,167 | ||
| 27 | $66,643 | |||
| 28 | $54,800 | |||
| 29 |
Addon Services LLC
Top agencies
|
$53,974 | ||
| 30 | $52,323 | |||
| 31 | $52,091 | |||
| 32 | $43,709 | |||
| 33 |
CMP Commercial Construction Inc
Top agencies
|
$35,389 | ||
| 34 | $35,000 | |||
| 35 | $32,680 | |||
| 36 |
Trane U.s. Inc.
Top agencies
|
$31,590 | ||
| 37 |
Schindler Elevator Corporation
Top agencies
|
$30,562 | ||
| 38 | $29,369 | |||
| 39 | $27,454 | |||
| 40 | $25,620 | |||
| 41 |
Contracting One LLC
Top agencies
|
$24,839 | ||
| 42 |
Veterans Elite Inc
Top agencies
|
$23,000 | ||
| 43 | $22,860 | |||
| 44 |
Grot, Inc.
Top agencies
|
$22,636 | ||
| 45 |
United Rentals, Inc.
Top agencies
|
$21,085 | ||
| 46 |
Core Consolidated LLC
Top agencies
|
$20,000 | ||
| 47 |
Bartkowski Life Safety Corp
Top agencies
|
$19,639 | ||
| 48 |
Lacusong Leilani
Top agencies
|
$18,131 | ||
| 49 | $17,915 | |||
| 50 | $17,325 | |||
| 51 |
Deep Reflection, Inc.
Top agencies
|
$11,400 | ||
| 52 |
Sunbelt Rentals Inc.
Top agencies
|
$9,058 | ||
| 53 | $6,298 | |||
| 54 | $2,092 |
Show 29 more
54 of 57 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 $55.1 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.
- Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
- Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
- 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 Z1BA contractors in FY2025?
1. The Matthews Group Inc. ($14.1M), 2. West Point Contractors, Inc. ($10.2M), 3. E Corp ($9.04M), 4. Guardian Construction, Inc. ($4.45M), 5. Mckenzie Construction & Site Development LLC ($4.36M), 6. Tj&B Air Conditioning and Electric, LLC ($2.89M), 7. A / C Services & Mechanical LLC ($931K), 8. Cornerstone Construction Services, LLC ($930K), 9. Trinity of Utah Incorporated ($900K), 10. Walsh Federal LLC ($892K).
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