Top 100 Contractors in PSC H999: Other Quality Control, Testing and Inspection Services: Miscellaneous, FY2025

Name: Top 100 Contractors in PSC H999: Other Quality Control, Testing and Inspection Services: Miscellaneous, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 75% of FY2025 PSC H999 contract dollars

Contract obligations: $90,673,779 Net of deobligations, by contracts coded PSC H999
Contractors: 212 Parent companies with an obligation
Largest contractor: Applied Research Associates, Inc. $29.2 million, 30.2% of obligations
Data as of: Oct 23, 2026

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	Applied Research Associates, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$29,150,251	30.2%	Rank history: #16 in FY2021, not on the FY2022 list, #4 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Parsons Corporation Through Parsons Government Services Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$24,992,988	25.9%	Rank history: not on the FY2021–FY2022 lists, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Korea Housing Management Co.,Ltd Top agencies Army (Department of the Army)	$4,030,308	4.2%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; up 7 since FY2024.
4	Nicholson Construction Company Top agencies Army (Department of the Army)	$3,795,945	3.9%	Rank history: not on the FY2021–FY2024 lists; new.
5	Murtech, Inc. Top agencies Army (Department of the Army)	$3,025,978	3.1%	Rank history: not on the FY2021–FY2024 lists; new.
6	Koniag, Inc. Through Digitized Schematic Solutions LLC Top agencies USAF (Department of the Air Force)	$1,809,251	1.9%	Rank history: not on the FY2021–FY2024 lists; new.
7	Agilent Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$1,569,404	1.6%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; up 1 since FY2024.
8	Johnson Controls Federal Systems, LLC Through Johnson Controls Government Systems, LLC Top agencies Army (Department of the Army)	$1,565,598	1.6%	Rank history: not on the FY2021–FY2024 lists; new.
9	Reli Group Inc. Through Data Quality Science, LLC Top agencies HHS (Department of Health and Human Services)	$1,421,847	1.5%	Rank history: not on the FY2021–FY2024 lists; new.
10	Aqua Survey, Inc. Top agencies Army (Department of the Army)	$1,294,390	1.3%	Rank history: not on the FY2021 list, #17 in FY2022, #18 in FY2023 and #9 in FY2024; down 1 since FY2024.
11	Obsidian Solutions Group LLC Top agencies DTRA (Defense Threat Reduction Agency)	$1,274,111	1.3%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and #15 in FY2024; up 4 since FY2024.
12	Next Generation Logistics, LLC Top agencies Army (Department of the Army)	$1,145,315	1.2%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023 and #7 in FY2024; down 5 since FY2024.
13	Accura Engineering and Consulting Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,127,853	1.2%	Rank history: #9 in FY2021, #16 in FY2022, #15 in FY2023 and #18 in FY2024; up 5 since FY2024.
14	Rmgs Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$1,109,610	1.1%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #19 in FY2024; up 5 since FY2024.
15	Battelle Memorial Institute Top agencies Army (Department of the Army)	$967,708	1.0%	Rank history: #25 in FY2021, #40 in FY2022, #24 in FY2023 and #12 in FY2024; down 3 since FY2024.
16	State of Wisconsin Department of Health Services Top agencies HHS (Department of Health and Human Services)	$899,217	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
17	Enviros LLC Top agencies VA (Department of Veterans Affairs)	$853,002	0.9%	Rank history: not on the FY2021 list, #32 in FY2022, #37 in FY2023 and #17 in FY2024; unchanged since FY2024.
18	Thermo Electron Corporation Through Fisher Bioservices Inc. Top agencies HHS (Department of Health and Human Services)	$700,629	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
19	Hamilton Associates Inc. Top agencies DOE (Department of Energy)	$679,806	0.7%	Rank history: #8 in FY2021, #11 in FY2022, #16 in FY2023 and #14 in FY2024; down 5 since FY2024.
20	AMA Consulting LLC Top agencies ED (Department of Education)	$567,039	0.6%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; unchanged since FY2024.
21	Nuaxis LLC Top agencies DOL (Department of Labor)	$413,248	0.4%	Rank history: #44 in FY2021, #35 in FY2022, #46 in FY2023 and #30 in FY2024; up 9 since FY2024.
22	Campbell Scientific Inc. Top agencies USDA (Department of Agriculture)	$409,431	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
23	Credere Associates, LLC Top agencies Navy (Department of the Navy)	$398,640	0.4%	Rank history: #36 in FY2021, not on the FY2022–FY2023 lists and #16 in FY2024; down 7 since FY2024.
24	Predictant, LLC Top agencies USAF (Department of the Air Force)	$396,576	0.4%	Rank history: #2 in FY2021, #1 in FY2022, #3 in FY2023 and #3 in FY2024; down 21 since FY2024.
25	Mclellan Integrated Professional Services LLC Top agencies VA (Department of Veterans Affairs)	$356,681	0.4%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 8 since FY2024.
26	Hurtvet Subcontracting LLC Top agencies VA (Department of Veterans Affairs)	$336,370	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
27	Itms - GES JV LLC Top agencies Army (Department of the Army)	$306,130	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 10 since FY2024.
28	Bagley Enterprises, Inc. Top agencies VA (Department of Veterans Affairs)	$279,545	0.3%	Rank history: #39 in FY2021, #36 in FY2022, #51 in FY2023 and #69 in FY2024; up 41 since FY2024.
29	ECS Southeast, LLC Top agencies Army (Department of the Army)	$275,164	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
30	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$250,691	0.3%	Rank history: #73 in FY2021, #65 in FY2022, #79 in FY2023 and #65 in FY2024; up 35 since FY2024.
31	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$248,660	0.3%	Rank history: #31 in FY2021, #28 in FY2022, #41 in FY2023 and #42 in FY2024; up 11 since FY2024.
32	Metropolitan Group, L.l.c Top agencies NASA (National Aeronautics and Space Administration)	$244,400	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
33	Board of Regents of University of Nebraska Top agencies VA (Department of Veterans Affairs)	$241,635	0.3%	Rank history: not on the FY2021 list, #34 in FY2022, #47 in FY2023 and #38 in FY2024; up 5 since FY2024.
34	Camfil USA Inc Top agencies USDA (Department of Agriculture)	$216,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; down 12 since FY2024.
35	Radiation Physics Consultants, Inc. Top agencies VA (Department of Veterans Affairs)	$204,380	0.2%	Rank history: not on the FY2021–FY2024 lists; up 81 since FY2024.
36	Bridging Pieces Inc. Top agencies USDA (Department of Agriculture)	$199,925	0.2%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023 and not on the FY2024 list; returned.
37	Environmental Compliance Consultants, Inc. Top agencies VA (Department of Veterans Affairs)	$197,723	0.2%	Rank history: not on the FY2021 list, #44 in FY2022, #49 in FY2023 and #40 in FY2024; up 3 since FY2024.
38	The University of Iowa Top agencies VA (Department of Veterans Affairs)	$194,100	0.2%	Rank history: #40 in FY2021, #43 in FY2022, #52 in FY2023 and #46 in FY2024; up 8 since FY2024.
39	A-Bear Consult LLC Top agencies VA (Department of Veterans Affairs)	$192,412	0.2%	Rank history: #77 in FY2021, #97 in FY2022, not on the FY2023 list and #83 in FY2024; up 44 since FY2024.
40	Heritage Services LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$178,357	0.2%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #26 in FY2024; down 14 since FY2024.
41	Phigenics LLC Top agencies VA (Department of Veterans Affairs)	$177,670	0.2%	Rank history: not on the FY2021–FY2024 lists; up 71 since FY2024.
42	Applied Technical Services, LLC 2 awardees, including Product Evaluation Systems, Llc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$170,197	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
43	Mobile Medical International Corporation Through Verda Medical Systems, LLC Top agencies VA (Department of Veterans Affairs)	$163,802	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
44	Calspan, LLC Top agencies DOT (Department of Transportation)	$155,925	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; down 5 since FY2024.
45	MGA Research Corporation Top agencies DOT (Department of Transportation)	$154,860	0.2%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024 list; returned.
46	Trustwave Government Solutions LLC Through NTS Technical Systems LLC Top agencies Army (Department of the Army)	$148,691	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 31 since FY2024.
47	Intertek Testing Services (South Africa) (Pty) Ltd Top agencies USDA (Department of Agriculture)	$143,665	0.1%	Rank history: not on the FY2021–FY2024 lists; up 55 since FY2024.
48	I-2-I Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$141,590	0.1%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; up 28 since FY2024.
49	D & D Laboratory LLC Top agencies VA (Department of Veterans Affairs)	$137,182	0.1%	Rank history: not on the FY2021 list, #83 in FY2022 and not on the FY2023–FY2024 lists; up 52 since FY2024.
50	Technical Safety Services, LLC 3 awardees, including Evergreen Medical Services, LLC Top agencies VA (Department of Veterans Affairs)	$134,201	0.1%	Rank history: not on the FY2021 list, #98 in FY2022, not on the FY2023 list and #51 in FY2024; up 1 since FY2024.
51	S & Me Inc. Top agencies Army (Department of the Army)	$129,956	0.1%	Rank history: not on the FY2021–FY2024 lists; up 127 since FY2024.
52	Smiths Detection Inc. Top agencies DOI (Department of the Interior)	$126,354	0.1%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 3 since FY2024.
53	Harrell Contracting Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$121,102	0.1%	Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
54	Remsa Inc. Top agencies Army (Department of the Army)	$120,241	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #70 in FY2024; up 16 since FY2024.
55	NTS Technical Systems, Llc. Top agencies NASA (National Aeronautics and Space Administration)	$119,584	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
56	Muchnick Hannah Top agencies Smithsonian (Smithsonian Institution)	$104,640	0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and not on the FY2024 list; returned.
57	Tekton CC, LLC Top agencies VA (Department of Veterans Affairs)	$104,335	0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 25 since FY2024.
58	Premier Mechanical Group Inc. Top agencies VA (Department of Veterans Affairs)	$100,000	0.1%	Rank history: #42 in FY2021, #50 in FY2022, #63 in FY2023 and #43 in FY2024; down 15 since FY2024.
59	Colorlab Corporation Top agencies Smithsonian (Smithsonian Institution)	$99,815	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Terracon Consultants, Inc. 2 awardees Top agencies Army (Department of the Army)	$98,444	0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #29 in FY2024; down 31 since FY2024.
61	Laboratory Testing, LLC Top agencies NASA (National Aeronautics and Space Administration)	$96,651	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Capital Brand Group LLC Top agencies DHS (Department of Homeland Security)	$93,576	0.1%	Rank history: #54 in FY2021, #66 in FY2022, #73 in FY2023 and #64 in FY2024; up 2 since FY2024.
63	Abebe Berrou Ayane Top agencies USDA (Department of Agriculture)	$90,139	0.1%	Rank history: not on the FY2021 list, #62 in FY2022, #69 in FY2023 and not on the FY2024 list; up 57 since FY2024.
64	Lira Electric LLC Top agencies Army (Department of the Army)	$89,858	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #58 in FY2024; down 6 since FY2024.
65	American Industrial Hygiene Association Top agencies Navy (Department of the Navy) Army (Department of the Army)	$88,995	0.1%	Rank history: #75 in FY2021, not on the FY2022–FY2023 lists and #72 in FY2024; up 7 since FY2024.
66	Vivien Barnett Top agencies Smithsonian (Smithsonian Institution)	$88,320	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2024 list; returned.
67	Act Safe, L.L.C. Top agencies VA (Department of Veterans Affairs)	$86,979	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #68 in FY2024; up 1 since FY2024.
68	Psomagen Inc. Top agencies HHS (Department of Health and Human Services)	$81,175	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Aerospace Facilities Group, Inc. Top agencies USAF (Department of the Air Force)	$72,391	0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #89 in FY2023 and #84 in FY2024; up 15 since FY2024.
70	Semper Environmental LLC Top agencies VA (Department of Veterans Affairs)	$71,019	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #60 in FY2023 and #79 in FY2024; up 9 since FY2024.
71	CAI Safety Systems Inc Top agencies USAF (Department of the Air Force)	$70,465	0.1%	Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
72	Electronic Metrology Laboratory, LLC Top agencies DOI (Department of the Interior)	$69,930	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	Emsl Analytical Inc. Top agencies DLA (Defense Logistics Agency)	$68,158	0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 1 since FY2024.
74	Government and Military Certification Systems, Inc. Top agencies Army (Department of the Army)	$68,150	0.1%	Rank history: #89 in FY2021 and not on the FY2022–FY2024 lists; up 101 since FY2024.
75	ASR International Corp. Top agencies DOI (Department of the Interior)	$65,722	0.1%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; down 50 since FY2024.
76	Health Systems Sciences, LLC Top agencies VA (Department of Veterans Affairs)	$65,713	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and not on the FY2024 list; up 55 since FY2024.
77	J3 Enterprise LLC Top agencies VA (Department of Veterans Affairs)	$64,276	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Sydnie Ziegler Top agencies Smithsonian (Smithsonian Institution)	$63,440	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Landauer, Inc. Top agencies VA (Department of Veterans Affairs)	$61,380	0.1%	Rank history: not on the FY2021–FY2024 lists; up 98 since FY2024.
80	Bio-Tech Lab Services LLC Top agencies USDA (Department of Agriculture)	$61,202	0.1%	Rank history: not on the FY2021 list, #90 in FY2022, not on the FY2023 list and #87 in FY2024; up 7 since FY2024.
81	Dynamic Non-Destructive Testing Inc. Top agencies Army (Department of the Army)	$59,477	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	JHC Fire Containment Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$57,687	0.1%	Rank history: #72 in FY2021 and not on the FY2022–FY2024 lists; returned.
83	M.s. Hatch Consulting, LLC Top agencies Army (Department of the Army)	$57,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; down 2 since FY2024.
84	Mass Tank Inspection Services LLC Top agencies Army (Department of the Army)	$56,915	0.1%	Rank history: #85 in FY2021, #92 in FY2022, #86 in FY2023 and #100 in FY2024; up 16 since FY2024.
85	Dunlap Government Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$55,964	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Advanced Diving Services Inc. Top agencies DOI (Department of the Interior)	$53,556	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Truck Refrigeration Repair, Inc. Top agencies Navy (Department of the Navy)	$53,450	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	RJY Group LLC Top agencies VA (Department of Veterans Affairs)	$52,399	0.1%	Rank history: #53 in FY2021, #94 in FY2022 and not on the FY2023–FY2024 lists; returned.
89	Meca Consulting Inc. Top agencies VA (Department of Veterans Affairs)	$50,600	0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 7 since FY2024.
90	Pauley Rodine Inc. Top agencies Navy (Department of the Navy)	$49,824	0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and #52 in FY2024; down 38 since FY2024.
91	Iris Environmental Laboratories LLC Top agencies DOI (Department of the Interior)	$49,504	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Techknowserv Corp Top agencies Army (Department of the Army)	$48,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Final Limit Elevator Inspections LLC Top agencies VA (Department of Veterans Affairs)	$46,237	<0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 6 since FY2024.
94	Letcher's Eci, LLC Top agencies VA (Department of Veterans Affairs)	$46,100	<0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; down 3 since FY2024.
95	MLM Enterprises LLC Top agencies VA (Department of Veterans Affairs)	$44,880	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Geo-Tec Environmental, LLC Top agencies DLA (Defense Logistics Agency)	$44,850	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	DAV Energy Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$44,848	<0.1%	Rank history: #69 in FY2021, #51 in FY2022, #40 in FY2023 and not on the FY2024 list; up 65 since FY2024.
98	Predictive Technologies Inc. Top agencies Army (Department of the Army)	$43,100	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 7 since FY2024.
99	Professional Environmental Testing and Consulting, LLC Top agencies DOI (Department of the Interior)	$43,074	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Virginia Commonwealth University Health System Authority Through Virginia Polytechnic Institute & State University Top agencies Navy (Department of the Navy)	$42,030	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

Show 75 more

100 of 212 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 $96.6 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 H999 contractors in FY2025?

1. Applied Research Associates, Inc. ($29.2M), 2. Parsons Corporation ($25M), 3. Korea Housing Management Co.,Ltd ($4.03M), 4. Nicholson Construction Company ($3.8M), 5. Murtech, Inc. ($3.03M), 6. Koniag, Inc. ($1.81M), 7. Agilent Technologies, Inc. ($1.57M), 8. Johnson Controls Federal Systems, LLC ($1.57M), 9. Reli Group Inc. ($1.42M), 10. Aqua Survey, Inc. ($1.29M).

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

Try for free Login