Top 100 Contractors in PSC M1: Operate Government Owned Buildings, Jul 2025–Jun 2026
Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe
The top 10 won 70% of PSC M1 contract dollars from July 2025 through June 2026
Ranking facts
- Contract obligations
- $44,932,480,017 Net of deobligations, by contracts coded PSC M1 or a code under it
- Contractors
- 924 Parent companies with an obligation
- Largest contractor
- Honeywell International Inc. $6.43 billion, 13.8% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $6,428,670,941 | |||
| 2 | $5,458,269,089 | |||
| 3 |
Fluor Corporation
Top agencies
|
$5,159,765,627 | ||
| 4 | $3,948,728,580 | |||
| 5 |
Ut-Battelle LLC
Top agencies
|
$3,090,480,030 | ||
| 6 | $2,948,045,894 | |||
| 7 | $1,706,217,884 | |||
| 8 | $1,317,641,278 | |||
| 9 | $1,270,400,000 | |||
| 10 |
Grimes Aerospace Company
|
$1,224,325,054 | ||
| 11 | $1,063,754,284 | |||
| 12 | $1,024,124,489 | |||
| 13 | $965,977,578 | |||
| 14 | $956,315,599 | |||
| 15 | $841,002,959 | |||
| 16 | $740,127,128 | |||
| 17 | $635,106,872 | |||
| 18 | $347,669,909 | |||
| 19 | $318,172,175 | |||
| 20 |
Suratech LLC
Top agencies
|
$289,988,170 | ||
| 21 | $252,559,154 | |||
| 22 | $222,742,114 | |||
| 23 | $210,173,094 | |||
| 24 |
Sodexo Management Inc.
Top agencies
|
$206,130,639 | ||
| 25 | $200,339,344 | |||
| 26 | $156,240,049 | |||
| 27 | $146,214,196 | |||
| 28 | $136,550,336 | |||
| 29 | $116,943,014 | |||
| 30 |
LDRM LLC
Top agencies
|
$115,014,948 | ||
| 31 | $106,257,232 | |||
| 32 | $99,589,154 | |||
| 33 |
Midwest Air Traffic Control Service Inc
Top agencies
|
$98,467,365 | ||
| 34 |
The GEO Group, Inc.
Top agencies
|
$82,690,640 | ||
| 35 | $76,666,979 | |||
| 36 |
CAE USA Inc.
Top agencies
|
$76,596,833 | ||
| 37 |
Pacific-Gulf Marine, Inc.
Top agencies
|
$76,197,293 | ||
| 38 |
Koa Lani JV LLC
Top agencies
|
$74,316,573 | ||
| 39 | $74,009,958 | |||
| 40 |
Indyne, Inc.
Top agencies
|
$73,828,539 | ||
| 41 |
Ocean Duchess, Inc.
Top agencies
|
$73,533,661 | ||
| 42 | $72,172,440 | |||
| 43 |
KBR Wyle Services LLC
|
$65,059,740 | ||
| 44 | $63,079,620 | |||
| 45 |
Olin Corporation
Top agencies
|
$62,073,807 | ||
| 46 | $59,877,742 | |||
| 47 |
RTX Corporation
Top agencies
|
$57,742,949 | ||
| 48 | $56,684,062 | |||
| 49 | $54,532,900 | |||
| 50 | $53,482,723 | |||
| 51 |
Horizon Djibouti Terminals Ltd
Top agencies
|
$46,746,500 | ||
| 52 |
Serco Inc
|
$44,767,075 | ||
| 53 |
Greenlight Group LLC
Top agencies
|
$43,821,000 | ||
| 54 | $42,165,106 | |||
| 55 |
T&H Services, LLC
Top agencies
|
$41,826,672 | ||
| 56 | $41,073,227 | |||
| 57 | $41,042,037 | |||
| 58 | $40,900,504 | |||
| 59 | $40,164,762 | |||
| 60 |
American Ordnance LLC
Top agencies
|
$37,198,194 | ||
| 61 | $36,947,318 | |||
| 62 |
CGI Federal Inc.
Top agencies
|
$34,938,968 | ||
| 63 | $34,441,465 | |||
| 64 | $33,410,063 | |||
| 65 | $33,337,420 | |||
| 66 | $32,194,025 | |||
| 67 |
The Timken Company
Top agencies
|
$32,090,928 | ||
| 68 |
Chevron Al Khalij
Top agencies
|
$31,677,923 | ||
| 69 | $30,198,624 | |||
| 70 |
BAE Systems
Top agencies
|
$27,837,461 | ||
| 71 | $27,098,535 | |||
| 72 |
CI2 Aviation, Inc.
Top agencies
|
$25,906,011 | ||
| 73 | $25,270,575 | |||
| 74 | $23,855,042 | |||
| 75 | $23,606,623 | |||
| 76 |
Adams and Associates Inc.
Top agencies
|
$23,138,612 | ||
| 77 |
Cruz Associates Inc.
Top agencies
|
$22,834,997 | ||
| 78 | $20,448,174 | |||
| 79 |
Pegasus Support Services LLC
|
$19,985,528 | ||
| 80 |
Eagle Harbor, LLC
Top agencies
|
$19,641,956 | ||
| 81 | $18,424,865 | |||
| 82 |
Katmai Technical Services LLC
|
$17,967,226 | ||
| 83 |
Maytag Aircraft LLC
Top agencies
|
$16,252,272 | ||
| 84 | $16,155,627 | |||
| 85 | $15,513,178 | |||
| 86 |
Tunista Logistics Solutions LLC
|
$14,874,330 | ||
| 87 | $14,776,011 | |||
| 88 |
Enviremedial Services, Inc.
Top agencies
|
$14,733,371 | ||
| 89 | $14,265,452 | |||
| 90 |
At2, LLC
Top agencies
|
$14,188,633 | ||
| 91 |
Data Monitor Systems Inc
|
$14,127,259 | ||
| 92 | $13,435,373 | |||
| 93 |
Emcor Group Inc.
Top agencies
|
$13,274,454 | ||
| 94 | $13,208,483 | |||
| 95 | $12,832,456 | |||
| 96 |
WSP USA Solutions Inc
|
$12,625,397 | ||
| 97 | $12,354,859 | |||
| 98 |
Guidehouse Inc.
Top agencies
|
$12,296,379 | ||
| 99 | $12,217,907 | |||
| 100 |
Prolog, Inc.
Top agencies
|
$12,170,639 |
Show 75 more
100 of 924 contractors listed here. See the rest on GovTribe.
Rankings for the codes under PSC M1
| Code | Net obligations | Largest contractor |
|---|---|---|
| M1JZ Operation of Miscellaneous Buildings | $19,019,139,139 | Honeywell International Inc. |
| M1FD Operation of Dining Facilities | $834,199,710 | Sodexo Management Inc. |
| M1PZ Operation of Other Non-Building Facilities | $743,404,316 | Tote Services, LLC |
| M1AZ Operation of Other Administrative Facilities and Service Buildings | $468,074,515 | LDRM LLC |
| M1NA Operation of Fuel Supply Facilities | $410,392,693 | Transmontaigne Partners LLC |
| M1GZ Operation of Other Warehouse Buildings | $255,751,231 | Amentum Holdings, Inc. |
| M1AA Operation of Office Buildings | $107,534,270 | Four Seasons Environmental Inc. |
| M1EB Operation of Maintenance Buildings | $79,004,796 | Pegasus Support Services LLC |
| M1ND Operation of Sewage and Waste Facilities | $42,377,487 | Veolia Water West Operating Services Inc. |
| M1PA Operation of Recreation Facilities (Non-Building) | $41,412,279 | R & D Maintenance Services Inc. |
| M1NE Operation of Water Supply Facilities | $24,489,325 | SES Energy Services LLC |
| M1LZ Operation of Parking Facilities | $24,422,894 | Mid-Atlantic Services Group, Inc. |
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 $46.5 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. 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 PSC M1 contractors in Jul 2025–Jun 2026?
1. Honeywell International Inc. ($6.43B), 2. Triad National Security LLC ($5.46B), 3. Fluor Corporation ($5.16B), 4. Battelle Memorial Institute ($3.95B), 5. Ut-Battelle LLC ($3.09B), 6. Consolidated Nuclear Security, LLC ($2.95B), 7. Pantexas Deterrence, LLC ($1.71B), 8. The Regents of the University of California ($1.32B), 9. MSM Group North America Inc. ($1.27B), 10. Grimes Aerospace Company ($1.22B).
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