Top 66 Contractors in PSC J044: Maintenance, Repair and Rebuilding of Equipment: Furnace, Steam Plant, and Drying Equipment; and Nuclear Reactors, FY2025

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 64% of FY2025 PSC J044 contract dollars

Ranking facts

Contract obligations
$12,543,801 Net of deobligations, by contracts coded PSC J044
Contractors
68 Parent companies with an obligation
Largest contractor
Phoenix General Contractors, LLC $2.06 million, 15.8% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 66 rows as CSV

Full ranking

Rank Contractor Net obligations Share Trend
1 $2,063,915
Rank history: not on the FY2021–FY2022 lists, #4 in FY2023 and #7 in FY2024; up 6 since FY2024.
2 $1,140,992
Rank history: #4 in FY2021, #6 in FY2022, #6 in FY2023 and #8 in FY2024; up 6 since FY2024.
3 $940,209
Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; unchanged since FY2024.
4 $903,621
Rank history: not on the FY2021–FY2024 lists; new.
5 $740,580
Rank history: #1 in FY2021, #5 in FY2022, #1 in FY2023 and #2 in FY2024; down 3 since FY2024.
6 $701,205
Rank history: not on the FY2021 list, #7 in FY2022, #22 in FY2023 and #11 in FY2024; up 5 since FY2024.
7 $671,446
Rank history: #15 in FY2021, #76 in FY2022, #33 in FY2023 and #12 in FY2024; up 5 since FY2024.
8 $417,351
Rank history: #63 in FY2021, #38 in FY2022, #45 in FY2023 and #55 in FY2024; up 47 since FY2024.
9
Ameritech Contracting LLC
$368,949
Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 15 since FY2024.
10 $349,659
Rank history: not on the FY2021–FY2024 lists; new.
11 $323,436
Rank history: not on the FY2021–FY2022 lists, #66 in FY2023 and #29 in FY2024; up 18 since FY2024.
12 $276,013
Rank history: #3 in FY2021, not on the FY2022 list, #25 in FY2023 and #10 in FY2024; down 2 since FY2024.
13 $275,816
Rank history: not on the FY2021 list, #30 in FY2022, #15 in FY2023 and #18 in FY2024; up 5 since FY2024.
14 $263,503
Rank history: not on the FY2021–FY2024 lists; new.
15 $247,465
Rank history: not on the FY2021–FY2024 lists; new.
16 $245,652
Rank history: not on the FY2021–FY2024 lists; new.
17 $229,516
Rank history: #5 in FY2021, #9 in FY2022, #10 in FY2023 and #9 in FY2024; down 8 since FY2024.
18 $204,765
Rank history: #10 in FY2021, #14 in FY2022, #21 in FY2023 and #20 in FY2024; up 2 since FY2024.
19 $200,000
Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 14 since FY2024.
20 $185,613
Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 7 since FY2024.
21 $138,143
Rank history: not on the FY2021–FY2024 lists; new.
22 $137,800
Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 3 since FY2024.
23
United Pool Maintenance LLC
$133,086
Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #14 in FY2024; down 9 since FY2024.
24 $130,618
Rank history: not on the FY2021–FY2024 lists; new.
25 $99,829
Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #28 in FY2024; up 3 since FY2024.
26 $86,862
Rank history: #51 in FY2021, not on the FY2022–FY2023 lists and #31 in FY2024; up 5 since FY2024.
27
Onsite Construction Group LLC
$84,899
Rank history: not on the FY2021–FY2024 lists; new.
28 $71,686
Rank history: not on the FY2021–FY2024 lists; new.
29 $70,492
Rank history: #46 in FY2021, #52 in FY2022, #59 in FY2023 and #57 in FY2024; up 28 since FY2024.
30 $69,850
Rank history: not on the FY2021–FY2024 lists; new.
31 $62,500
Rank history: not on the FY2021–FY2024 lists; new.
32 $61,033
Rank history: #18 in FY2021, not on the FY2022–FY2023 lists and #41 in FY2024; up 9 since FY2024.
33 $58,080
Rank history: #39 in FY2021, #44 in FY2022, #29 in FY2023 and #40 in FY2024; up 7 since FY2024.
34 $55,516
Rank history: not on the FY2021–FY2024 lists; new.
35 $52,088
Rank history: #61 in FY2021, #59 in FY2022, #76 in FY2023 and not on the FY2024 list; returned.
36 $50,500
Rank history: not on the FY2021–FY2024 lists; new.
37 $50,500
Rank history: not on the FY2021 list, #13 in FY2022, #30 in FY2023 and #46 in FY2024; up 9 since FY2024.
38 $50,000
Rank history: #44 in FY2021, #4 in FY2022, #8 in FY2023 and #30 in FY2024; down 8 since FY2024.
39 $42,363
Rank history: not on the FY2021 list, #27 in FY2022, #68 in FY2023 and #33 in FY2024; down 6 since FY2024.
40
Carotek Inc.
$39,286
Rank history: not on the FY2021–FY2024 lists; new.
41 $29,573
Rank history: not on the FY2021–FY2024 lists; new.
42 $24,842
Rank history: #34 in FY2021, #49 in FY2022, #57 in FY2023 and #59 in FY2024; up 17 since FY2024.
43 $23,500
Rank history: not on the FY2021–FY2024 lists; new.
44 $23,103
Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 7 since FY2024.
45 $22,450
Rank history: #59 in FY2021, #58 in FY2022, #84 in FY2023 and #63 in FY2024; up 18 since FY2024.
46 $20,199
Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; down 40 since FY2024.
47 $19,600
Rank history: #77 in FY2021 and not on the FY2022–FY2024 lists; returned.
48 $19,450
Rank history: #80 in FY2021 and not on the FY2022–FY2024 lists; returned.
49 $18,636
Rank history: not on the FY2021–FY2024 lists; new.
50 $18,313
Rank history: not on the FY2021–FY2024 lists; new.
51 $17,406
Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #49 in FY2024; down 2 since FY2024.
52 $14,876
Rank history: not on the FY2021 list, #53 in FY2022, #61 in FY2023 and #64 in FY2024; up 12 since FY2024.
53 $13,690
Rank history: not on the FY2021–FY2024 lists; new.
54 $13,025
Rank history: not on the FY2021–FY2024 lists; new.
55 $11,655
Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 14 since FY2024.
56 $11,548
Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; down 17 since FY2024.
57 $11,486
Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #73 in FY2024; up 16 since FY2024.
58 $11,076
Rank history: not on the FY2021 list, #45 in FY2022, #75 in FY2023 and #53 in FY2024; down 5 since FY2024.
59 $10,950
Rank history: not on the FY2021–FY2024 lists; new.
60 $9,972
Rank history: not on the FY2021–FY2024 lists; new.
61 $9,336
Rank history: not on the FY2021–FY2024 lists; new.
62 $7,607
Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; down 1 since FY2024.
63 $6,720
Rank history: not on the FY2021–FY2024 lists; new.
64 $3,750
Rank history: not on the FY2021–FY2024 lists; new.
65
Technical Applications Inc
$3,176
Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 5 since FY2024.
66
American Classic Construction Inc.
$1,490
Rank history: not on the FY2021–FY2024 lists; new.
Show 41 more

66 of 68 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 $13 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 J044 contractors in FY2025?

1. Phoenix General Contractors, LLC ($2.06M), 2. Caldaia Controls LLC ($1.14M), 3. Johnson Controls Inc ($940K), 4. Adamson Solutions LLC ($904K), 5. Consolidated Engineering Company, Inc. ($741K), 6. Venergy Group LLC ($701K), 7. R.f. Macdonald Co., LLC ($671K), 8. Heat Treating Services Unlimited Inc. ($417K), 9. Ameritech Contracting LLC ($369K), 10. Combustion Service & Equipment Co ($350K).

On GovTribe

Research every contractor on this list

  • Every contract, task order and IDV they hold
  • Their subsidiaries, teammates and competitors
  • Open opportunities they're positioned for
  • Alerts when they win new work