Top 100 Contractors in PSC H1: Quality Control Services, FY2025

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

The top 10 won 79% of FY2025 PSC H1 contract dollars

Ranking facts

Contract obligations
$782,025,438 Net of deobligations, by contracts coded PSC H1 or a code under it
Contractors
591 Parent companies with an obligation
Largest contractor
GDC Middle East Company $343 million, 38.6% 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
GDC Middle East Company
$343,391,129
Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2
RTX Corporation Through Rockwell Collins, Inc.
$161,539,476
Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 40 since FY2024.
3
Peckham Vocational Industries Inc.
$75,857,527
Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #3 in FY2024; unchanged since FY2024.
4 $62,397,066
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #4 in FY2024; unchanged since FY2024.
5
WSP USA Solutions Inc Through WSP USA Services Inc.
$44,155,079
Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 3 since FY2024.
6 $4,749,924
Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; up 1 since FY2024.
7 $3,917,098
Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 16 since FY2024.
8 $2,927,666
Rank history: #31 in FY2021, #8 in FY2022, not on the FY2023 list and #67 in FY2024; up 59 since FY2024.
9
Phigenics LLC
$2,822,645
Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 3 since FY2024.
10 $2,721,423
Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 5 since FY2024.
11 $2,613,440
Rank history: #74 in FY2021, not on the FY2022 list, #25 in FY2023 and #27 in FY2024; up 16 since FY2024.
12 $2,366,944
Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 25 since FY2024.
13 $2,020,263
Rank history: not on the FY2021 list, #29 in FY2022, #11 in FY2023 and #13 in FY2024; unchanged since FY2024.
14
United Paradyne Corporation
$1,925,512
Rank history: not on the FY2021–FY2024 lists; new.
15 $1,746,114
Rank history: #93 in FY2021, #93 in FY2022, not on the FY2023 list and #17 in FY2024; up 2 since FY2024.
16 $1,699,757
Rank history: not on the FY2021–FY2024 lists; new.
17 $1,680,997
Rank history: not on the FY2021–FY2024 lists; new.
18 $1,610,517
Rank history: not on the FY2021 list, #25 in FY2022, #23 in FY2023 and not on the FY2024 list; returned.
19 $1,565,769
Rank history: #38 in FY2021, #15 in FY2022, #17 in FY2023 and #60 in FY2024; up 41 since FY2024.
20
Shabas Solutions LLC
$1,452,189
Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 13 since FY2024.
21 $1,392,000
Rank history: not on the FY2021–FY2024 lists; new.
22 $1,324,935
Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and #16 in FY2024; down 6 since FY2024.
23 $1,281,019
Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 23 since FY2024.
24 $1,251,341
Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 14 since FY2024.
25
State of Washington Department of Agriculture
$1,201,216
Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 14 since FY2024.
26 $1,163,492
Rank history: #32 in FY2021, #40 in FY2022, #40 in FY2023 and #40 in FY2024; up 14 since FY2024.
27 $1,144,630
Rank history: not on the FY2021 list, #53 in FY2022, #35 in FY2023 and #36 in FY2024; up 9 since FY2024.
28 $1,096,815
Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 16 since FY2024.
29 $1,091,194
Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 21 since FY2024.
30 $1,079,692
Rank history: #85 in FY2021, not on the FY2022 list, #48 in FY2023 and not on the FY2024 list; up 277 since FY2024.
31 $1,035,321
Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 10 since FY2024.
32 $1,014,005
Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 25 since FY2024.
33 $946,944
Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 30 since FY2024.
34 $933,103
Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2023 list and #76 in FY2024; up 42 since FY2024.
35 $919,533
Rank history: not on the FY2021 list, #34 in FY2022, #42 in FY2023 and #74 in FY2024; up 39 since FY2024.
36 $853,268
Rank history: not on the FY2021–FY2024 lists; up 209 since FY2024.
37 $853,257
Rank history: not on the FY2021–FY2024 lists; new.
38 $822,012
Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 24 since FY2024.
39 $816,621
Rank history: not on the FY2021 list, #47 in FY2022, #45 in FY2023 and not on the FY2024 list; returned.
40 $811,547
Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 9 since FY2024.
41 $805,816
Rank history: not on the FY2021–FY2024 lists; new.
42 $693,758
Rank history: #97 in FY2021, #92 in FY2022, not on the FY2023 list and #71 in FY2024; up 29 since FY2024.
43 $655,040
Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 25 since FY2024.
44 $654,441
Rank history: not on the FY2021–FY2024 lists; new.
45 $620,038
Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 28 since FY2024.
46 $614,191
Rank history: not on the FY2021–FY2024 lists; new.
47 $580,680
Rank history: #78 in FY2021, #67 in FY2022, #82 in FY2023 and #85 in FY2024; up 38 since FY2024.
49 $559,586
Rank history: not on the FY2021–FY2024 lists; new.
50 $555,451
Rank history: #60 in FY2021, #54 in FY2022, #49 in FY2023 and #82 in FY2024; up 32 since FY2024.
51 $538,950
Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 43 since FY2024.
52 $527,698
Rank history: not on the FY2021 list, #96 in FY2022, #63 in FY2023 and #78 in FY2024; up 26 since FY2024.
53 $526,070
Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 5 since FY2024.
54
Liona Enterprises Inc
$520,402
Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2024 list; returned.
55 $516,680
Rank history: not on the FY2021–FY2024 lists; new.
56
City Light & Power FTC LLC Through City Light & Power Aberdeen, LLC
$514,890
Rank history: not on the FY2021–FY2024 lists; new.
57 $504,446
Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 24 since FY2024.
58 $499,035
Rank history: #94 in FY2021, not on the FY2022 list, #91 in FY2023 and not on the FY2024 list; returned.
59 $496,465
Rank history: not on the FY2021–FY2024 lists; new.
60 $467,714
Rank history: not on the FY2021 list, #38 in FY2022, #50 in FY2023 and #99 in FY2024; up 39 since FY2024.
61 $467,097
Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 27 since FY2024.
62 $462,063
Rank history: not on the FY2021–FY2024 lists; up 89 since FY2024.
63 $457,398
Rank history: not on the FY2021–FY2024 lists; up 44 since FY2024.
64 $437,473
Rank history: not on the FY2021–FY2024 lists; new.
65 $435,656
Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and #58 in FY2024; down 7 since FY2024.
66 $428,542
Rank history: not on the FY2021–FY2024 lists; new.
67 $419,736
Rank history: #81 in FY2021, not on the FY2022 list, #74 in FY2023 and #100 in FY2024; up 33 since FY2024.
68 $419,278
Rank history: not on the FY2021–FY2024 lists; new.
69 $409,186
Rank history: #79 in FY2021, #72 in FY2022, #61 in FY2023 and not on the FY2024 list; returned.
70 $399,997
Rank history: not on the FY2021–FY2024 lists; new.
71 $396,546
Rank history: #22 in FY2021, #33 in FY2022, #31 in FY2023 and not on the FY2024 list; returned.
72 $389,592
Rank history: #52 in FY2021, #82 in FY2022 and not on the FY2023–FY2024 lists; up 37 since FY2024.
73 $389,585
Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2023–FY2024 lists; up 132 since FY2024.
74 $377,910
Rank history: not on the FY2021–FY2024 lists; new.
75 $369,677
Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 17 since FY2024.
76 $368,730
Rank history: not on the FY2021–FY2024 lists; new.
77 $355,875
Rank history: not on the FY2021–FY2024 lists; up 100 since FY2024.
78 $340,193
Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2024 list; up 25 since FY2024.
79 $339,610
Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
80
The Simple VUE LLC
$332,122
Rank history: not on the FY2021–FY2024 lists; up 22 since FY2024.
81
California Department of Food & Agriculture
$329,563
Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2024 list; up 37 since FY2024.
82 $324,147
Rank history: not on the FY2021–FY2024 lists; up 28 since FY2024.
83 $322,550
Rank history: not on the FY2021–FY2024 lists; up 50 since FY2024.
84 $315,434
Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 9 since FY2024.
85 $301,719
Rank history: not on the FY2021–FY2024 lists; new.
86 $285,964
Rank history: not on the FY2021–FY2024 lists; up 68 since FY2024.
87 $284,547
Rank history: not on the FY2021–FY2024 lists; new.
88 $280,000
Rank history: #100 in FY2021 and not on the FY2022–FY2024 lists; up 33 since FY2024.
89 $277,700
Rank history: not on the FY2021–FY2024 lists; new.
90 $277,288
Rank history: not on the FY2021–FY2024 lists; new.
91 $276,800
Rank history: not on the FY2021–FY2024 lists; up 112 since FY2024.
92 $267,975
Rank history: not on the FY2021–FY2024 lists; up 45 since FY2024.
93 $264,524
Rank history: not on the FY2021–FY2024 lists; up 29 since FY2024.
94 $251,805
Rank history: not on the FY2021–FY2024 lists; new.
95 $251,414
Rank history: not on the FY2021 list, #59 in FY2022, #57 in FY2023 and #65 in FY2024; down 30 since FY2024.
96 $250,000
Rank history: not on the FY2021–FY2024 lists; new.
97 $245,349
Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
98 $244,656
Rank history: not on the FY2021–FY2024 lists; up 29 since FY2024.
99 $242,334
Rank history: not on the FY2021–FY2024 lists; new.
100 $240,000
Rank history: not on the FY2021–FY2024 lists; new.
Show 75 more

100 of 591 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC H1

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 $890 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.
  • 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 H1 contractors in FY2025?

1. GDC Middle East Company ($343M), 2. RTX Corporation ($162M), 3. Peckham Vocational Industries Inc. ($75.9M), 4. Vanguard Inspection Services ($62.4M), 5. WSP USA Solutions Inc ($44.2M), 6. Sierra Nevada Company, LLC ($4.75M), 7. Intertek USA Inc. ($3.92M), 8. Lockheed Martin Corporation ($2.93M), 9. Phigenics LLC ($2.82M), 10. New Jersey Department of Health ($2.72M).

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