Top 100 Contractors in PSC Z2: Maintenance, Alteration, Repair Nonbuildings, 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 Z2: Maintenance, Alteration, Repair Nonbuildings, FY2025.
The top 10 won 22% of PSC Z2 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $16,674,465,672 Net of deobligations, by contracts coded PSC Z2 or a code under it
- Contractors
- 3,680 Parent companies with an obligation
- Largest contractor
- Barnard Construction Company, Incorporated $1.35 billion, 7.8% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $1,350,263,517 | |||
| 2 | $517,591,408 | |||
| 3 | $345,040,000 | |||
| 4 | $270,175,310 | |||
| 5 | $256,713,492 | |||
| 6 | $251,255,091 | |||
| 7 | $249,875,254 | |||
| 8 | $235,461,804 | |||
| 9 |
Weston Solutions Holdings Inc
|
$180,825,211 | ||
| 10 |
Tutor Perini Corporation
|
$142,323,955 | ||
| 11 |
Clark Construction Group - California, LP
Top agencies
|
$135,750,000 | ||
| 12 | $127,277,586 | |||
| 13 |
NW Construction, Inc.
Top agencies
|
$123,789,530 | ||
| 14 | $120,706,516 | |||
| 15 | $116,267,451 | |||
| 16 | $113,300,164 | |||
| 17 |
Sauer Construction LLC
Top agencies
|
$111,737,518 | ||
| 18 | $109,815,157 | |||
| 19 |
J & J Maintenance Inc.
|
$87,665,150 | ||
| 20 |
Hcpa-Garco JV1
Top agencies
|
$85,650,000 | ||
| 21 |
Sea PAC Engineering Inc
|
$84,667,630 | ||
| 22 |
Kiewit Infrastructure South Co
|
$82,252,086 | ||
| 23 | $80,212,569 | |||
| 24 | $72,856,148 | |||
| 25 |
Greenberry Industrial LLC
|
$72,506,092 | ||
| 26 | $71,520,269 | |||
| 27 | $71,161,068 | |||
| 28 | $68,550,595 | |||
| 29 | $67,210,624 | |||
| 30 | $62,198,174 | |||
| 31 |
Terra Site Constructors LLC
|
$61,386,266 | ||
| 32 | $61,369,884 | |||
| 33 | $61,094,474 | |||
| 34 | $60,654,328 | |||
| 35 | $60,601,460 | |||
| 36 | $60,160,686 | |||
| 37 | $59,200,865 | |||
| 38 |
Atkins Nuclear Secured Holdings Corporation
Top agencies
|
$57,514,681 | ||
| 39 |
Fox-Esa JV LLC
Top agencies
|
$56,758,349 | ||
| 40 | $55,629,595 | |||
| 41 | $54,728,101 | |||
| 42 |
Agate Construction Company, Inc.
Top agencies
|
$53,000,000 | ||
| 43 | $52,992,521 | |||
| 44 | $52,165,780 | |||
| 45 | $51,982,768 | |||
| 46 | $51,161,975 | |||
| 47 | $50,495,183 | |||
| 48 | $50,379,299 | |||
| 49 | $49,462,138 | |||
| 50 |
Porr Government Services GMBH
|
$49,294,715 | ||
| 51 | $48,961,067 | |||
| 52 | $48,919,236 | |||
| 53 | $48,757,216 | |||
| 54 |
Semper TEK Inc
|
$47,680,099 | ||
| 55 | $46,195,584 | |||
| 56 |
V2X, Inc.
|
$46,084,779 | ||
| 57 | $45,607,356 | |||
| 58 | $45,519,061 | |||
| 59 |
The Haskell Company
Top agencies
|
$45,223,000 | ||
| 60 |
Chickasaw Nation
Top agencies
|
$44,581,562 | ||
| 61 |
PCL Construction Inc
Top agencies
|
$44,446,845 | ||
| 62 |
Nihon Meccs Co.,Ltd.
Top agencies
|
$44,075,864 | ||
| 63 |
Hurley JV, LLP
Top agencies
|
$43,822,884 | ||
| 64 | $43,273,037 | |||
| 65 | $42,970,816 | |||
| 66 | $42,792,533 | |||
| 67 | $42,261,726 | |||
| 68 | $41,658,005 | |||
| 69 |
Dawson Technical, Inc.
Top agencies
|
$41,600,000 | ||
| 70 | $41,529,219 | |||
| 71 |
WSP USA Environment & Infrastructure Inc.
|
$40,206,809 | ||
| 72 |
Cdeem Co
Top agencies
|
$39,550,000 | ||
| 73 |
Siemens Corporation
|
$39,427,613 | ||
| 74 | $39,197,451 | |||
| 75 | $38,958,126 | |||
| 76 |
Knight Const. & Supply Inc
Top agencies
|
$38,345,868 | ||
| 77 | $38,279,434 | |||
| 78 | $37,879,715 | |||
| 79 | $36,811,117 | |||
| 80 | $35,894,931 | |||
| 81 | $35,163,248 | |||
| 82 |
Tpc-Nan A Joint Venture
Top agencies
|
$35,001,298 | ||
| 83 | $34,961,232 | |||
| 84 | $34,759,786 | |||
| 85 | $33,789,554 | |||
| 86 | $32,946,565 | |||
| 87 |
Wichita Falls TRI-Tech LLC
Top agencies
|
$32,921,957 | ||
| 88 | $32,803,104 | |||
| 89 | $32,062,895 | |||
| 90 | $31,980,230 | |||
| 91 | $31,979,246 | |||
| 92 | $31,202,636 | |||
| 93 | $31,079,118 | |||
| 94 |
Cerris Builders, Inc.
Top agencies
|
$30,625,000 | ||
| 95 |
Environet Inc.
|
$30,449,507 | ||
| 96 |
Icon Si (Aust) PTY Ltd
Top agencies
|
$30,248,960 | ||
| 97 | $30,058,057 | |||
| 98 | $30,001,790 | |||
| 99 | $29,762,816 | |||
| 100 | $29,663,000 |
Show 75 more
100 of 3,680 contractors listed here. See the rest on GovTribe.
Rankings for the codes under PSC Z2
Show all 38
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 $17.4 billion 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 Z2 contractors in Aug 2025–Jul 2026?
1. Barnard Construction Company, Incorporated ($1.35B), 2. Kiewit-Alberici Siop Macc AJV ($518M), 3. Fisher Sand & Gravel Co ($345M), 4. BL Harbert International LLC ($270M), 5. Nan Inc. ($257M), 6. Peter Kiewit Sons', Inc. ($251M), 7. C.j. Mahan Construction Company, LLC ($250M), 8. Bristol Bay Native Corporation ($235M), 9. Weston Solutions Holdings Inc ($181M), 10. Tutor Perini Corporation ($142M).
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