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

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

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

Contract obligations: $782,025,438 Net of deobligations, by contracts coded PSC H1 or a code under it
Contractors: 603 Parent companies with an obligation
Largest contractor: GDC Middle East Company $343 million, 38.6% of obligations
Data as of: Oct 14, 2026

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	GDC Middle East Company Top agencies Army (Department of the Army)	$343,391,129	38.6%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2	RTX Corporation Through Rockwell Collins, Inc. Top agencies Army (Department of the Army)	$161,539,476	18.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 40 since FY2024.
3	Peckham Vocational Industries Inc. Top agencies Army (Department of the Army)	$75,857,527	8.5%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Vanguard Inspection Services Top agencies DHS (Department of Homeland Security)	$62,397,066	7.0%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	Golder Europe Service Centre SRL Through WSP USA Services Inc. Top agencies DHS (Department of Homeland Security)	$44,155,079	5.0%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 3 since FY2024.
6	Sierra Nevada Company, LLC Top agencies USAF (Department of the Air Force)	$4,749,924	0.5%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; up 1 since FY2024.
7	Intertek USA Inc. Top agencies DLA (Defense Logistics Agency)	$3,917,098	0.4%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 16 since FY2024.
8	Lockheed Martin Corporation 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army)	$2,927,666	0.3%	Rank history: #31 in FY2021, #8 in FY2022, not on the FY2023 list and #67 in FY2024; up 59 since FY2024.
9	Phigenics LLC Top agencies VA (Department of Veterans Affairs)	$2,822,645	0.3%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 3 since FY2024.
10	New Jersey Department of Health Top agencies HHS (Department of Health and Human Services)	$2,721,423	0.3%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 5 since FY2024.
11	Pennsylvania Commonwealth of 2 awardees, including Pennsylvania Department of Health and Department of Agriculture Pennsylvania Top agencies HHS (Department of Health and Human Services)	$2,613,440	0.3%	Rank history: #74 in FY2021, not on the FY2022 list, #25 in FY2023 and #27 in FY2024; up 16 since FY2024.
12	California Department of Public Health Top agencies HHS (Department of Health and Human Services)	$2,366,944	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 25 since FY2024.
13	GA Mechanical Inc. Top agencies Army (Department of the Army)	$2,020,263	0.2%	Rank history: not on the FY2021 list, #29 in FY2022, #11 in FY2023 and #13 in FY2024; unchanged since FY2024.
14	United Paradyne Corporation Top agencies Navy (Department of the Navy)	$1,925,512	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
15	Colorado Department of Public Health & Environment Top agencies HHS (Department of Health and Human Services)	$1,746,114	0.2%	Rank history: #93 in FY2021, #93 in FY2022, not on the FY2023 list and #17 in FY2024; up 2 since FY2024.
16	Siemens Industry Inc. Top agencies Smithsonian (Smithsonian Institution) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,699,757	0.2%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; down 6 since FY2024.
17	North Carolina Department of Health & Human Services Top agencies HHS (Department of Health and Human Services)	$1,680,997	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
18	State of Illinois 3 awardees, including Department of Public Health Illinois, Illinois Department of Human Service and Illinois Department of Agriculture Top agencies HHS (Department of Health and Human Services)	$1,565,769	0.2%	Rank history: #38 in FY2021, #15 in FY2022, #17 in FY2023 and #60 in FY2024; up 42 since FY2024.
19	Mental Health & Addiction Services Conne Top agencies HHS (Department of Health and Human Services)	$1,502,035	0.2%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 12 since FY2024.
20	Shabas Solutions LLC Top agencies HHS (Department of Health and Human Services)	$1,452,189	0.2%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 13 since FY2024.
21	Instrumentum California, LLC Top agencies VA (Department of Veterans Affairs)	$1,392,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
22	Aviate Enterprises, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$1,324,935	0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and #16 in FY2024; down 6 since FY2024.
23	Ohio Department of Agriculture Top agencies HHS (Department of Health and Human Services)	$1,281,019	0.1%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 23 since FY2024.
24	State of Iowa 2 awardees, including Iowa Department of Revenue and Iowa Department of Agriculture and Land Stewardship Top agencies HHS (Department of Health and Human Services)	$1,251,341	0.1%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 14 since FY2024.
25	Washington State Patrol Through State of Washington Department of Agriculture Top agencies HHS (Department of Health and Human Services)	$1,201,216	0.1%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 14 since FY2024.
26	Energy Systems Group, LLC Top agencies VA (Department of Veterans Affairs)	$1,163,492	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
27	Doc Development, Inc. Top agencies USAF (Department of the Air Force)	$1,144,630	0.1%	Rank history: not on the FY2021 list, #53 in FY2022, #35 in FY2023 and #36 in FY2024; up 9 since FY2024.
28	Michigan Department of Agriculture and Rural Development Top agencies HHS (Department of Health and Human Services)	$1,096,815	0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 16 since FY2024.
29	West Virginia Dept of Human Services Top agencies HHS (Department of Health and Human Services)	$1,091,194	0.1%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 21 since FY2024.
30	Minnesota Department of Human Services Top agencies HHS (Department of Health and Human Services)	$1,035,321	0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 11 since FY2024.
31	Atlantic First Industries Corporation Top agencies VA (Department of Veterans Affairs)	$1,014,005	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 26 since FY2024.
32	Massachusetts Department of Public Health Top agencies HHS (Department of Health and Human Services)	$946,944	0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 31 since FY2024.
33	LC Industries Inc. Top agencies USAF (Department of the Air Force)	$933,103	0.1%	Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2023 list and #76 in FY2024; up 43 since FY2024.
34	Maxisoft Corporation Top agencies DHS (Department of Homeland Security)	$919,533	0.1%	Rank history: not on the FY2021 list, #34 in FY2022, #42 in FY2023 and #74 in FY2024; up 40 since FY2024.
35	I-2-I Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$853,268	0.1%	Rank history: not on the FY2021–FY2024 lists; up 210 since FY2024.
36	Industries for the Blind and Visually Impaired, Inc. Top agencies USAF (Department of the Air Force)	$853,257	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
37	Public Protection Cabinet Top agencies HHS (Department of Health and Human Services)	$822,012	0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 25 since FY2024.
38	Attorney General's Office, Mississippi Top agencies HHS (Department of Health and Human Services)	$816,621	0.1%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2024; up 14 since FY2024.
39	Missouri Department of Mental Health Top agencies HHS (Department of Health and Human Services)	$811,547	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 10 since FY2024.
40	Agati, Inc. Top agencies Army (Department of the Army)	$805,816	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
41	State of Georgia Department of Revenue Top agencies HHS (Department of Health and Human Services)	$777,008	0.1%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 15 since FY2024.
42	Hyperion Biotechnology, Inc. Top agencies VA (Department of Veterans Affairs)	$693,758	0.1%	Rank history: #97 in FY2021, #92 in FY2022, not on the FY2023 list and #71 in FY2024; up 29 since FY2024.
43	North Carolina Department of Agriculture & Consumer Services Top agencies HHS (Department of Health and Human Services)	$655,040	0.1%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 25 since FY2024.
44	The Impact Group LLC Top agencies Army (Department of the Army)	$654,441	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
45	SGS Guam Inc. Top agencies DLA (Defense Logistics Agency)	$620,038	0.1%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 28 since FY2024.
46	Yulista Integrated Solutions, LLC Top agencies Army (Department of the Army)	$614,191	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 49 since FY2024.
47	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$580,680	0.1%	Rank history: #78 in FY2021, #67 in FY2022, #82 in FY2023 and #85 in FY2024; up 38 since FY2024.
48	State of Wisconsin Department of Health Services Top agencies HHS (Department of Health and Human Services)	$575,505	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	Transcat, Inc. Top agencies Army (Department of the Army)	$559,586	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
50	The Northridge Group, Inc. Top agencies CFPB (Consumer Financial Protection Bureau)	$555,451	0.1%	Rank history: #60 in FY2021, #54 in FY2022, #49 in FY2023 and #82 in FY2024; up 32 since FY2024.
51	Tech62 Inc. Top agencies VA (Department of Veterans Affairs)	$538,950	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 43 since FY2024.
52	Cartridge Technologies, LLC Top agencies Treasury (Department of the Treasury) USAGM (US Agency for Global Media) DHS (Department of Homeland Security)	$527,698	0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #63 in FY2023 and #78 in FY2024; up 26 since FY2024.
53	Department of State Health Services Top agencies HHS (Department of Health and Human Services)	$526,070	0.1%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 5 since FY2024.
54	Liona Enterprises Inc Top agencies DHS (Department of Homeland Security)	$520,402	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2024 list; returned.
55	Oregon Dept of Agriculture Top agencies HHS (Department of Health and Human Services)	$516,680	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
56	Amber Infrastructure LLC Through City Light & Power Aberdeen, LLC Top agencies USAF (Department of the Air Force)	$514,890	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
57	Seneca Federal Solutions, LLC Top agencies Army (Department of the Army)	$504,446	0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 24 since FY2024.
58	Michigan Department of Health and Human Services Top agencies HHS (Department of Health and Human Services)	$496,465	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
59	Quest Diagnostics Incorporated Top agencies VA (Department of Veterans Affairs)	$467,714	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #50 in FY2023 and #99 in FY2024; up 40 since FY2024.
60	Evoqua Water Technologies, LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$467,097	0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 28 since FY2024.
61	Virginia Department of Agriculture and Consumer Services Top agencies HHS (Department of Health and Human Services)	$462,063	0.1%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
62	JNV Group Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$457,398	0.1%	Rank history: not on the FY2021–FY2024 lists; up 45 since FY2024.
63	Professional Environmental Engineers, Inc. Top agencies Army (Department of the Army)	$437,473	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	Minuteman Security Solutions LLC Top agencies Army (Department of the Army)	$435,656	<0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and #58 in FY2024; down 6 since FY2024.
65	Wabtec Inspection Technologies, Inc. Top agencies Navy (Department of the Navy)	$428,542	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
66	General and Mechanical Services, LLC Top agencies DOI (Department of the Interior)	$419,736	<0.1%	Rank history: #81 in FY2021, not on the FY2022 list, #74 in FY2023 and #100 in FY2024; up 34 since FY2024.
67	Alcoholic Beverage Laws Enforcement Commission Top agencies HHS (Department of Health and Human Services)	$419,278	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Department of Agriculture & Consumer Services Florida Top agencies HHS (Department of Health and Human Services)	$409,186	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
69	Narcx Solutions Inc. Top agencies DHS (Department of Homeland Security)	$399,997	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Washington State Liquor and Cannabis Board Top agencies HHS (Department of Health and Human Services)	$396,546	<0.1%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; down 38 since FY2024.
71	State of Montana Department of Health and Human Services Top agencies HHS (Department of Health and Human Services)	$394,441	<0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 25 since FY2024.
72	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$389,592	<0.1%	Rank history: #52 in FY2021, #82 in FY2022 and not on the FY2023–FY2024 lists; up 37 since FY2024.
73	Missouri Department of Health & Senior Services Top agencies HHS (Department of Health and Human Services)	$389,585	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2023–FY2024 lists; up 132 since FY2024.
74	Cintas Corporation NO. 2 Top agencies VA (Department of Veterans Affairs)	$377,910	<0.1%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 24 since FY2024.
75	Minnesota Department of Agriculture Top agencies HHS (Department of Health and Human Services)	$369,677	<0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 17 since FY2024.
76	Blue Wave Ultrasonics Inc. Top agencies NASA (National Aeronautics and Space Administration)	$368,730	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Health Systems Sciences, LLC Top agencies VA (Department of Veterans Affairs)	$355,875	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 100 since FY2024.
78	D2 Government Solutions, Inc. Top agencies USAF (Department of the Air Force)	$340,193	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2024 list; up 25 since FY2024.
79	Triple Point Industries LLC Top agencies VA (Department of Veterans Affairs)	$339,610	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
80	The Simple VUE LLC Top agencies DOJ (Department of Justice)	$332,122	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 22 since FY2024.
81	Food & Agriculture California Department of Through California Department of Food & Agriculture Top agencies HHS (Department of Health and Human Services)	$329,563	<0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2024 list; up 37 since FY2024.
82	A-Bear Consult LLC Top agencies VA (Department of Veterans Affairs)	$324,147	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 28 since FY2024.
83	Johnson Controls Inc 3 awardees, including Johnson Controls Fire Protection LP and Johnson Controls Building Solutions, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$322,550	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 50 since FY2024.
84	Centrifugal Technologies, Inc. Top agencies Army (Department of the Army)	$315,434	<0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 9 since FY2024.
85	Georgia Department of Agriculture Top agencies HHS (Department of Health and Human Services)	$302,684	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Kansas Department of Agriculture Top agencies HHS (Department of Health and Human Services)	$301,719	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Purdue University Top agencies HHS (Department of Health and Human Services)	$285,964	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 67 since FY2024.
88	Enrec Enterprises Inc. Top agencies VA (Department of Veterans Affairs)	$284,547	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	L Sakvarelidze National Center for Disease Control and Public Health Top agencies DHA (Defense Health Agency)	$280,000	<0.1%	Rank history: #100 in FY2021 and not on the FY2022–FY2024 lists; up 32 since FY2024.
90	Bryant Power Solutions L.l.c Top agencies VA (Department of Veterans Affairs)	$277,700	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Web Business Solutions Inc. Top agencies Navy (Department of the Navy)	$277,288	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Low Voltage Specialty, Inc. Top agencies VA (Department of Veterans Affairs)	$276,800	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 111 since FY2024.
93	Alamo Integrated Systems, Inc. Top agencies Navy (Department of the Navy)	$267,975	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 44 since FY2024.
94	Department of Agriculture Tennessee Top agencies HHS (Department of Health and Human Services)	$264,524	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 28 since FY2024.
95	Contract Decor, Inc. Top agencies VA (Department of Veterans Affairs)	$251,805	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	DL Stone Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$250,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Texas A & M University System Through Texas A&M Agrilife Research Top agencies HHS (Department of Health and Human Services)	$245,349	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
98	VA State Board of Health Top agencies HHS (Department of Health and Human Services)	$244,656	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 29 since FY2024.
99	Hebco, Inc. Top agencies USAF (Department of the Air Force)	$242,334	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Bear Environmental LLC Top agencies USAF (Department of the Air Force)	$240,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

Show 75 more

100 of 603 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC H1

Code	Net obligations	Largest contractor
H199 Quality Control Services: Miscellaneous	$36,786,895	New Jersey Department of Health
H146 Quality Control Services: Water Purification and Sewage Treatment Equipment	$13,571,151	Phigenics LLC
H141 Quality Control Services: Refrigeration, Air Conditioning, and Air Circulating Equipment	$3,994,746	United Paradyne Corporation
H166 Quality Control Services: Instruments and Laboratory Equipment	$2,517,061	Quest Diagnostics Incorporated
H163 Quality Control Services: Alarm, Signal, and Security Detection Systems	$1,798,733	Minuteman Security Solutions LLC
H142 Quality Control Services: Fire Fighting, Rescue, and Safety Equipment; and Environmental Protection Equipment and Materials	$1,032,850	Lionheart Alliance LLC

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. 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. Golder Europe Service Centre SRL ($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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