Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, 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 41: Refrigeration, Air Conditioning/Circulating Equipment, FY2025.
The top 10 won 58% of PSC 41 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $635,204,060 Net of deobligations, by contracts coded PSC 41 or a code under it
- Contractors
- 870 Parent companies with an obligation
- Largest contractor
- Johnson Controls Federal Systems, LLC $179 million, 27.6% 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 | $179,115,965 | |||
| 2 |
Simulation Technologies Inc
Top agencies
|
$49,664,136 | ||
| 3 | $23,159,315 | |||
| 4 | $21,003,311 | |||
| 5 | $19,719,502 | |||
| 6 | $18,828,391 | |||
| 7 | $18,518,072 | |||
| 8 | $17,192,532 | |||
| 9 | $13,923,241 | |||
| 10 | $13,680,763 | |||
| 11 | $12,801,350 | |||
| 12 |
Grimes Aerospace Company
|
$8,383,745 | ||
| 13 |
RTX Corporation
Top agencies
|
$8,182,009 | ||
| 14 | $8,104,567 | |||
| 15 |
Hornet Acquisitionco LLC
|
$6,943,395 | ||
| 16 | $6,861,534 | |||
| 17 | $6,144,747 | |||
| 18 |
W S Darley & Co
Top agencies
|
$5,974,624 | ||
| 19 | $5,616,654 | |||
| 20 |
Parker-Hannifin Corporation
|
$5,082,341 | ||
| 21 | $4,845,738 | |||
| 22 |
General Electric Company
Top agencies
|
$4,607,096 | ||
| 23 | $4,602,029 | |||
| 24 | $4,482,311 | |||
| 25 |
Aldevra LLC
|
$4,258,430 | ||
| 26 | $3,892,952 | |||
| 27 |
Janels Industries Inc.
Top agencies
|
$3,705,042 | ||
| 28 | $3,469,614 | |||
| 29 |
Aggreko LLC
|
$3,087,743 | ||
| 30 | $3,032,630 | |||
| 31 |
Alvest (USA) Inc.
|
$2,514,120 | ||
| 32 | $2,453,433 | |||
| 33 | $2,435,217 | |||
| 34 |
Windward Enterprises, LLC
Top agencies
|
$2,396,677 | ||
| 35 | $2,287,812 | |||
| 36 |
ECI Defense Group, Inc.
Top agencies
|
$2,185,260 | ||
| 37 |
Rural Route 2, LLC
Top agencies
|
$2,126,600 | ||
| 38 |
JAL Enterprises, Inc.
Top agencies
|
$2,111,988 | ||
| 39 | $2,095,627 | |||
| 40 | $2,085,154 | |||
| 41 | $2,073,279 | |||
| 42 |
Tyco Fire Products LP
|
$2,034,397 | ||
| 43 | $1,891,431 | |||
| 44 | $1,873,615 | |||
| 45 | $1,859,014 | |||
| 46 |
K2 Contracting Group LLC
Top agencies
|
$1,741,486 | ||
| 47 | $1,721,051 | |||
| 48 | $1,678,378 | |||
| 49 |
United Rentals, Inc.
Top agencies
|
$1,645,070 | ||
| 50 | $1,506,346 | |||
| 51 |
Reon Inc.
Top agencies
|
$1,478,715 | ||
| 52 | $1,467,229 | |||
| 53 | $1,423,647 | |||
| 54 |
OST Services, LLC
Top agencies
|
$1,394,185 | ||
| 55 | $1,364,359 | |||
| 56 |
Conditioned Air, LLC
Top agencies
|
$1,289,887 | ||
| 57 |
Phoenix Trading Inc.
Top agencies
|
$1,252,795 | ||
| 58 | $1,167,835 | |||
| 59 | $1,095,191 | |||
| 60 | $1,090,740 | |||
| 61 |
Elevan LLC
Top agencies
|
$1,032,770 | ||
| 62 | $1,016,248 | |||
| 63 |
AKS Industries Inc.
Top agencies
|
$1,008,761 | ||
| 64 | $1,005,425 | |||
| 65 |
J.G.B. Enterprises Inc.
Top agencies
|
$991,666 | ||
| 66 |
The Ryan Group Inc
Top agencies
|
$962,412 | ||
| 67 |
American Air Filter Company Inc.
|
$887,675 | ||
| 68 | $880,831 | |||
| 69 | $871,250 | |||
| 70 |
Tactair Fluid Controls Inc
Top agencies
|
$861,394 | ||
| 71 | $854,190 | |||
| 72 | $848,899 | |||
| 73 | $824,287 | |||
| 74 |
Kihomac Inc.
Top agencies
|
$778,504 | ||
| 75 | $763,714 | |||
| 76 | $756,871 | |||
| 77 |
Andrews Refrigeration Inc.
Top agencies
|
$748,131 | ||
| 78 | $743,385 | |||
| 79 | $740,264 | |||
| 80 | $739,514 | |||
| 81 | $720,313 | |||
| 82 | $712,097 | |||
| 83 | $705,270 | |||
| 84 | $699,691 | |||
| 85 | $697,110 | |||
| 86 | $693,242 | |||
| 87 | $685,865 | |||
| 88 | $680,162 | |||
| 89 | $660,540 | |||
| 90 | $652,960 | |||
| 91 | $644,020 | |||
| 92 | $625,796 | |||
| 93 | $610,175 | |||
| 94 |
NSN Government Supply LLC
Top agencies
|
$583,764 | ||
| 95 | $579,695 | |||
| 96 |
H C Merchandisers, Inc.
Top agencies
|
$564,854 | ||
| 97 |
Makpak, LLC
Top agencies
|
$546,625 | ||
| 98 | $531,640 | |||
| 99 |
Indoff LLC
Top agencies
|
$519,204 | ||
| 100 | $516,274 |
Show 75 more
100 of 870 contractors listed here. See the rest on GovTribe.
Rankings for the codes under PSC 41
| Code | Net obligations | Largest contractor |
|---|---|---|
| 4130 Refrigeration and Air Conditioning Components | $237,766,980 | Johnson Controls Federal Systems, LLC |
| 4120 Air Conditioning Equipment | $211,715,104 | Johnson Controls Federal Systems, LLC |
| 4140 Fans, Air Circulators, and Blower Equipment | $140,958,064 | Kampi Components Co Inc. |
| 4110 Refrigeration Equipment | $44,706,608 | Outdoor Venture Corp |
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 $650 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 41 contractors in Aug 2025–Jul 2026?
1. Johnson Controls Federal Systems, LLC ($179M), 2. Simulation Technologies Inc ($49.7M), 3. Mainstream Engineering Corp ($23.2M), 4. Kampi Components Co Inc. ($21M), 5. STS International, Incorporated ($19.7M), 6. Heico Corp ($18.8M), 7. Honeywell International Inc. ($18.5M), 8. Atlantic Diving Supply, Inc. ($17.2M), 9. Atap Inc. ($13.9M), 10. Leonardo S.p.A. ($13.7M).
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