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
Rank history: #28 in FY2021, #40 in FY2022, #2 in FY2023 and #21 in FY2024; up 20 since FY2024.
2 $10,162,032
Rank history: not on the FY2021–FY2024 lists; new.
3 $9,043,618
Rank history: #2 in FY2021, #15 in FY2022, #5 in FY2023 and #2 in FY2024; down 1 since FY2024.
4 $4,450,259
Rank history: #12 in FY2021, not on the FY2022 list, #4 in FY2023 and #8 in FY2024; up 4 since FY2024.
5 $4,362,415
Rank history: not on the FY2021–FY2024 lists; new.
6 $2,887,312
Rank history: #3 in FY2021, #3 in FY2022, #52 in FY2023 and #25 in FY2024; up 19 since FY2024.
7 $930,814
Rank history: not on the FY2021–FY2024 lists; new.
8 $930,350
Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #4 in FY2024; down 4 since FY2024.
9 $900,214
Rank history: not on the FY2021–FY2024 lists; new.
10 $891,718
Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; down 9 since FY2024.
11 $661,922
Rank history: not on the FY2021–FY2022 lists, #1 in FY2023 and not on the FY2024 list; returned.
12 $626,967
Rank history: #5 in FY2021, #8 in FY2022, #41 in FY2023 and #38 in FY2024; up 26 since FY2024.
13 $624,584
Rank history: #14 in FY2021, #19 in FY2022, #17 in FY2023 and #14 in FY2024; up 1 since FY2024.
14 $496,521
Rank history: not on the FY2021 list, #9 in FY2022, #72 in FY2023 and not on the FY2024 list; returned.
15 $487,974
Rank history: not on the FY2021–FY2024 lists; new.
16 $397,283
Rank history: not on the FY2021–FY2024 lists; new.
17 $317,351
Rank history: not on the FY2021–FY2024 lists; new.
18 $297,134
Rank history: not on the FY2021–FY2022 lists, #3 in FY2023 and #42 in FY2024; up 24 since FY2024.
19 $293,753
Rank history: not on the FY2021–FY2024 lists; new.
20 $240,952
Rank history: not on the FY2021–FY2022 lists, #8 in FY2023 and not on the FY2024 list; returned.
21 $187,188
Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 14 since FY2024.
22 $125,397
Rank history: not on the FY2021–FY2024 lists; new.
23 $114,740
Rank history: not on the FY2021 list, #10 in FY2022, #27 in FY2023 and #6 in FY2024; down 17 since FY2024.
24 $100,063
Rank history: not on the FY2021–FY2024 lists; new.
25 $86,113
Rank history: not on the FY2021–FY2024 lists; new.
26
Weil Construction Inc
$78,167
Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and #10 in FY2024; down 16 since FY2024.
27 $66,643
Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and not on the FY2024 list; returned.
28 $54,800
Rank history: not on the FY2021–FY2024 lists; new.
29
Addon Services LLC
$53,974
Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 20 since FY2024.
30 $52,323
Rank history: not on the FY2021–FY2024 lists; new.
31 $52,091
Rank history: not on the FY2021–FY2024 lists; new.
32 $43,709
Rank history: not on the FY2021–FY2024 lists; new.
33
CMP Commercial Construction Inc
$35,389
Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; down 16 since FY2024.
34 $35,000
Rank history: #6 in FY2021, not on the FY2022 list, #18 in FY2023 and #3 in FY2024; down 31 since FY2024.
35 $32,680
Rank history: not on the FY2021–FY2024 lists; new.
36 $31,590
Rank history: not on the FY2021 list, #55 in FY2022 and not on the FY2023–FY2024 lists; returned.
37
Schindler Elevator Corporation 2 awardees, including Slade Industries, Inc.
$30,562
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and #40 in FY2024; up 3 since FY2024.
38 $29,369
Rank history: not on the FY2021–FY2024 lists; new.
39 $27,454
Rank history: not on the FY2021–FY2024 lists; new.
40 $25,620
Rank history: not on the FY2021–FY2024 lists; new.
41 $24,839
Rank history: not on the FY2021–FY2024 lists; new.
42
Veterans Elite Inc
$23,000
Rank history: not on the FY2021–FY2024 lists; new.
43 $22,860
Rank history: not on the FY2021 list, #53 in FY2022, #55 in FY2023 and #45 in FY2024; up 2 since FY2024.
44 $22,636
Rank history: not on the FY2021 list, #24 in FY2022, #29 in FY2023 and #13 in FY2024; down 31 since FY2024.
45 $21,085
Rank history: not on the FY2021–FY2024 lists; new.
46 $20,000
Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #49 in FY2024; up 3 since FY2024.
47
Bartkowski Life Safety Corp
$19,639
Rank history: #19 in FY2021, #33 in FY2022, #39 in FY2023 and #31 in FY2024; down 16 since FY2024.
48 $18,131
Rank history: not on the FY2021 list, #6 in FY2022, #13 in FY2023 and #36 in FY2024; down 12 since FY2024.
49 $17,915
Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #11 in FY2024; down 38 since FY2024.
50 $17,325
Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and #26 in FY2024; down 24 since FY2024.
51 $11,400
Rank history: not on the FY2021 list, #20 in FY2022 and not on the FY2023–FY2024 lists; returned.
52
Sunbelt Rentals Inc.
$9,058
Rank history: not on the FY2021–FY2024 lists; new.
53 $6,298
Rank history: not on the FY2021–FY2024 lists; new.
54 $2,092
Rank history: not on the FY2021 list, #25 in FY2022, #6 in FY2023 and #16 in FY2024; down 38 since FY2024.
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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