Top 100 Contractors in PSC H9: Other Quality, Test, Inspect Services, FY2023

Name: Top 100 Contractors in PSC H9: Other Quality, Test, Inspect Services, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 64% of FY2023 PSC H9 contract dollars

Contract obligations: $562,958,224 Net of deobligations, by contracts coded PSC H9 or a code under it
Contractors: 675 Parent companies with an obligation
Largest contractor: Danaher Corporation $92.1 million, 15.7% 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	Danaher Corporation Through Global Life Sciences Solutions USA LLC Top agencies HHS (Department of Health and Human Services)	$92,111,712	15.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 460 since FY2022.
2	Lockheed Martin Corporation 5 awardees, including Lockheed Martin Coherent Technologies, Inc. and Sikorsky Aircraft Corporation Top agencies MDA (DOD Missile Defense Agency) DOT (Department of Transportation) DOJ (Department of Justice)	$84,142,439	14.4%	Rank history: #2 in FY2021, #2 in FY2022, #10 in FY2024 and #10 in FY2025; unchanged since FY2022.
3	L3Harris Technologies, Inc. 2 awardees, including L3Harris Interstate Electronics Corporation and Acron Aviation, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$64,784,496	11.1%	Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; down 2 since FY2022.
4	RTX Corporation 4 awardees, including Raytheon Company and Hamilton Sundstrand Corporation Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Army (Department of the Army)	$36,178,430	6.2%	Rank history: #1 in FY2021, #5 in FY2022, #2 in FY2024 and #2 in FY2025; up 1 since FY2022.
5	Johnson Controls Security Solutions LLC 5 awardees, including Johnson Controls Government Systems, LLC, Johnson Controls, Inc. and Johnson Controls Fire Protection LP Top agencies Army (Department of the Army) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$18,761,291	3.2%	Rank history: #4 in FY2021, #3 in FY2022, #12 in FY2024 and not on the FY2025 list; down 2 since FY2022.
6	Parsons Corporation Through Parsons Government Services Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$17,972,741	3.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and #4 in FY2025; new.
7	Man-Machine Systems Assessment (Msa), Incorporated Top agencies Army (Department of the Army)	$16,384,673	2.8%	Rank history: #9 in FY2021, #6 in FY2022, #6 in FY2024 and #6 in FY2025; down 1 since FY2022.
8	Honeywell International Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,170,744	2.6%	Rank history: #8 in FY2021, #10 in FY2022, #17 in FY2024 and #12 in FY2025; up 2 since FY2022.
9	Sparksoft Corporation Top agencies HHS (Department of Health and Human Services)	$14,767,362	2.5%	Rank history: #11 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
10	Predictant, LLC Top agencies USAF (Department of the Air Force)	$14,502,497	2.5%	Rank history: #12 in FY2021, #7 in FY2022, #8 in FY2024 and #77 in FY2025; down 3 since FY2022.
11	Dark Wolf Solutions, LLC Top agencies USAF (Department of the Air Force)	$13,004,523	2.2%	Rank history: #18 in FY2021, #14 in FY2022, #7 in FY2024 and #8 in FY2025; up 3 since FY2022.
12	Applied Research Associates, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$12,868,748	2.2%	Rank history: #58 in FY2021, not on the FY2022 list, #4 in FY2024 and #3 in FY2025; up 95 since FY2022.
13	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies USDA (Department of Agriculture)	$9,827,743	1.7%	Rank history: #6 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
14	Joint Research and Development LLC Top agencies Army (Department of the Army)	$8,456,270	1.4%	Rank history: #13 in FY2021, #13 in FY2022, #11 in FY2024 and #15 in FY2025; down 1 since FY2022.
15	Nova Global Supply and Services LLC Through Valiant Global Defense Services Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$6,178,962	1.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
16	Rmgs Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$5,893,866	1.0%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and #43 in FY2025; new.
17	Smart Munitions Expert Solutions, Inc. Top agencies USAF (Department of the Air Force)	$5,587,872	1.0%	Rank history: #25 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
18	Tribal One Technology, LLC Top agencies USDA (Department of Agriculture)	$5,099,670	0.9%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #11 in FY2025; new.
19	System Dynamics International Incorporated Top agencies USAF (Department of the Air Force)	$5,077,397	0.9%	Rank history: #17 in FY2021, #15 in FY2022, #15 in FY2024 and #29 in FY2025; down 4 since FY2022.
20	Black & Veatch Special Projects Corp. Top agencies DTRA (Defense Threat Reduction Agency)	$4,916,804	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
21	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corp Top agencies USAF (Department of the Air Force)	$4,732,173	0.8%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #7 in FY2025; up 105 since FY2022.
22	Johnson Controls Industries 2 awardees, including Johnson Controls, Inc. and Johnson Controls Building Automation Systems, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOS (Department of State)	$4,049,252	0.7%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2024 and not on the FY2025 list; new.
23	EMCOR Group, Inc. 2 awardees, including Mechanical Services of Central Florida, Inc. and Mesa Energy Systems, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$3,718,745	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	Edenred Commuter Benefit Solutions LLC Through Edenred Benefits LLC Top agencies Smithsonian (Smithsonian Institution)	$3,528,000	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	Psi Services LLC Through Performance Assessment Network, Inc. Top agencies DHS (Department of Homeland Security)	$3,518,608	0.6%	Rank history: #10 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
26	Vista Defense Technologies, LLC Top agencies Army (Department of the Army)	$3,405,531	0.6%	Rank history: #19 in FY2021, #18 in FY2022, #21 in FY2024 and #18 in FY2025; down 8 since FY2022.
27	The Mitre Corporation Top agencies DHS (Department of Homeland Security)	$2,650,000	0.5%	Rank history: #32 in FY2021, not on the FY2022 list, #47 in FY2024 and not on the FY2025 list; returned.
28	Nemean Trideum Joint Venture LLC Top agencies DHS (Department of Homeland Security)	$2,216,659	0.4%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
29	BMA Technical Services, Inc. Top agencies Army (Department of the Army)	$2,049,923	0.3%	Rank history: #15 in FY2021, #24 in FY2022, #26 in FY2024 and #24 in FY2025; down 5 since FY2022.
30	Tribologik Corp Top agencies Navy (Department of the Navy)	$1,868,410	0.3%	Rank history: #77 in FY2021, not on the FY2022 list, #32 in FY2024 and #27 in FY2025; returned.
31	Acoustic Research Systems, Inc. Top agencies Navy (Department of the Navy)	$1,854,421	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
32	Frazier Investments, Inc. Top agencies Navy (Department of the Navy)	$1,781,852	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Obsidian Solutions Group LLC Top agencies DTRA (Defense Threat Reduction Agency)	$1,756,882	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and #36 in FY2025; new.
34	Agilent Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$1,743,137	0.3%	Rank history: #28 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
35	Valogic Bio, LLC Top agencies HHS (Department of Health and Human Services)	$1,682,374	0.3%	Rank history: #67 in FY2021, #38 in FY2022, #50 in FY2024 and #33 in FY2025; up 3 since FY2022.
36	Level 3 Associates, LLC Top agencies Army (Department of the Army)	$1,589,844	0.3%	Rank history: #21 in FY2021, #47 in FY2022, #56 in FY2024 and not on the FY2025 list; up 11 since FY2022.
37	Data Quality Science, LLC Top agencies HHS (Department of Health and Human Services)	$1,550,499	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #38 in FY2024 and #32 in FY2025; unchanged since FY2022.
38	Accura Engineering and Consulting Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,393,865	0.2%	Rank history: #34 in FY2021, #49 in FY2022, #45 in FY2024 and #42 in FY2025; up 11 since FY2022.
39	Centerpoint Energy, Inc. Through Energy Systems Group, LLC Top agencies Army (Department of the Army)	$1,320,454	0.2%	Rank history: #16 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
40	Hamilton Associates Inc. Top agencies DOE (Department of Energy)	$1,320,012	0.2%	Rank history: #30 in FY2021, #34 in FY2022, #40 in FY2024 and #53 in FY2025; down 6 since FY2022.
41	OY Halton Group Ltd Through Nelbud Services LLC Top agencies WHS (DOD Washington Headquarters Service)	$1,317,930	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	MRIGLOBAL Top agencies DHS (Department of Homeland Security)	$1,197,065	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	AECOM Through AECOM Usa, Inc. Top agencies Navy (Department of the Navy)	$1,124,097	0.2%	Rank history: #14 in FY2021, #40 in FY2022, #46 in FY2024 and #30 in FY2025; down 3 since FY2022.
44	Progressive Recovery Inc. Top agencies USDA (Department of Agriculture)	$1,089,396	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Markon LLC Top agencies DOI (Department of the Interior)	$1,080,118	0.2%	Rank history: #22 in FY2021, #23 in FY2022, #88 in FY2024 and not on the FY2025 list; down 22 since FY2022.
46	Aqua Survey, Inc. Top agencies Army (Department of the Army)	$1,072,740	0.2%	Rank history: not on the FY2021 list, #51 in FY2022, #31 in FY2024 and #34 in FY2025; up 5 since FY2022.
47	Next Generation Logistics, LLC Top agencies Army (Department of the Army)	$1,069,109	0.2%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2024 and #40 in FY2025; up 279 since FY2022.
48	Graybar Electric Company, Inc. Top agencies SSA (Social Security Administration)	$1,019,105	0.2%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and #45 in FY2025; new.
49	Vision Information Technology Consultants, LLC Top agencies USAF (Department of the Air Force)	$1,018,714	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
50	Gartner, Inc. Top agencies DOS (Department of State)	$1,013,894	0.2%	Rank history: #54 in FY2021, #25 in FY2022, #44 in FY2024 and #49 in FY2025; down 25 since FY2022.
51	Gstek Inc. Top agencies Navy (Department of the Navy)	$993,226	0.2%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2024 and #39 in FY2025; new.
52	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$988,584	0.2%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
53	Comfort Systems USA Inc. Through S.m. Lawrence Company, Inc. Top agencies VA (Department of Veterans Affairs)	$985,696	0.2%	Rank history: not on the FY2021 list, #62 in FY2022, #79 in FY2024 and not on the FY2025 list; up 9 since FY2022.
54	Chugai Technos Corporation Top agencies Navy (Department of the Navy)	$968,750	0.2%	Rank history: not on the FY2021 list, #29 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
55	De La Fuente Construction, Inc. Top agencies Army (Department of the Army)	$949,332	0.2%	Rank history: #35 in FY2021, #45 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
56	Cotecna Inspection Inc. Top agencies USDA (Department of Agriculture)	$914,248	0.2%	Rank history: #50 in FY2021, #26 in FY2022, #37 in FY2024 and not on the FY2025 list; down 30 since FY2022.
57	Winergy LLC Top agencies VA (Department of Veterans Affairs)	$865,976	0.1%	Rank history: #39 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
58	Siemens Aktiengesellschaft 2 awardees, including Siemens Industry Inc. and Siemens Government Technologies Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$838,660	0.1%	Rank history: #46 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
59	Eagle Harbor, LLC Top agencies Navy (Department of the Navy)	$804,842	0.1%	Rank history: not on the FY2021 list, #22 in FY2022, #92 in FY2024 and #19 in FY2025; down 37 since FY2022.
60	Battelle Memorial Institute Top agencies Army (Department of the Army)	$769,584	0.1%	Rank history: #84 in FY2021, not on the FY2022 list, #36 in FY2024 and #38 in FY2025; up 52 since FY2022.
61	J&B Hartigan, Inc. Top agencies VA (Department of Veterans Affairs)	$768,806	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #63 in FY2025; up 108 since FY2022.
62	Lytx, Inc. Top agencies DOS (Department of State)	$727,411	0.1%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2024–FY2025 lists; down 45 since FY2022.
63	Ama Consulting LLC Top agencies ED (Department of Education)	$723,000	0.1%	Rank history: #62 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
64	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$697,252	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and not on the FY2025 list; new.
65	WGL Energy Services Inc. Top agencies DOJ (Department of Justice)	$618,861	0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #68 in FY2025; new.
66	KOK Consulting Co., Ltd Top agencies Army (Department of the Army)	$614,220	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #66 in FY2025; new.
67	National Medical Services, Inc. Top agencies HHS (Department of Health and Human Services)	$549,986	0.1%	Rank history: #85 in FY2021, #85 in FY2022 and not on the FY2024–FY2025 lists; up 18 since FY2022.
68	Calspan Corporation Top agencies DOT (Department of Transportation)	$514,039	0.1%	Rank history: #88 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
69	WB Brawley Co Top agencies Army (Department of the Army)	$508,805	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
70	Valley Wide Engineering & Construction, Inc. Top agencies Navy (Department of the Navy)	$506,095	0.1%	Rank history: not on the FY2021 list, #72 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
71	Applied Pavement Technology, Inc. Top agencies USDA (Department of Agriculture)	$493,403	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Unified Industries Incorporated Top agencies Navy (Department of the Navy)	$489,804	0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #62 in FY2024 and #57 in FY2025; down 9 since FY2022.
73	The Boeing Company 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$489,302	0.1%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2024 and not on the FY2025 list; new.
74	Gunco. L.L.C. Top agencies Army (Department of the Army)	$476,500	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Federal Contracts LLC Top agencies DOI (Department of the Interior)	$474,644	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Enapay, LLC Top agencies VA (Department of Veterans Affairs)	$465,047	0.1%	Rank history: #48 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
77	National Facility Solutions LLC Through Enviros LLC Top agencies VA (Department of Veterans Affairs)	$456,851	0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #43 in FY2024 and #47 in FY2025; up 16 since FY2022.
78	Verina-Pars JV Top agencies Army (Department of the Army)	$449,299	0.1%	Rank history: not on the FY2021 list, #83 in FY2022, #84 in FY2024 and not on the FY2025 list; up 5 since FY2022.
79	ACE Consulting Company, Inc. Top agencies DOI (Department of the Interior)	$447,153	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	RC TECH Inc. Top agencies DOL (Department of Labor)	$440,457	0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #65 in FY2024 and #67 in FY2025; up 18 since FY2022.
81	Daebo Industrial Co. Ltd. Through Daebo Engineering & Construction Co., Ltd. Top agencies Army (Department of the Army)	$439,011	0.1%	Rank history: #75 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
82	Quality Turbocharger Components LLC Top agencies DOT (Department of Transportation)	$419,830	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
83	Camfil AB Through Camfil USA Inc. Top agencies USDA (Department of Agriculture)	$419,230	0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
84	Nelbud Services LLC Top agencies WHS (DOD Washington Headquarters Service)	$414,820	0.1%	Rank history: #26 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; down 49 since FY2022.
85	Ricardo PLC Top agencies DOT (Department of Transportation)	$412,414	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and not on the FY2025 list; up 26 since FY2022.
86	Elektro Noack GMBH Top agencies DOS (Department of State)	$408,983	0.1%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2024 and not on the FY2025 list; new.
87	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$408,110	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, #76 in FY2024 and #62 in FY2025; down 5 since FY2022.
88	Hughes Environmental Inc. Top agencies DOT (Department of Transportation)	$407,515	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	RLM Government Services LLC Top agencies VA (Department of Veterans Affairs)	$395,129	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and #82 in FY2025; up 16 since FY2022.
90	Johnson, Mirmiran & Thompson, Inc. Top agencies DOI (Department of the Interior)	$394,372	0.1%	Rank history: #90 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
91	NTS Holding Corporation Inc. 2 awardees, including NTS Technical Systems LLC and National Quality Assurance - U.s.a., Inc. Top agencies Army (Department of the Army)	$382,640	0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and not on the FY2025 list; up 80 since FY2022.
92	Hanjin Heavy Industries & Construction Holdings Co. Ltd. Through Korea Engineering Consultants Corporation Top agencies Army (Department of the Army)	$371,061	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	STG International, Inc. Top agencies Smithsonian (Smithsonian Institution)	$370,383	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 74 since FY2022.
94	Sensors Inc. Top agencies EPA (Environmental Protection Agency)	$362,432	0.1%	Rank history: #73 in FY2021, not on the FY2022 list, not on the FY2024 list and #71 in FY2025; up 54 since FY2022.
95	Talon Veteran Services Incorporated Top agencies Army (Department of the Army)	$360,330	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Pacific Coast Contracting Group Top agencies VA (Department of Veterans Affairs)	$358,140	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 130 since FY2022.
97	Scitech Services Inc Top agencies Army (Department of the Army)	$357,972	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$349,768	0.1%	Rank history: #70 in FY2021, #80 in FY2022, #87 in FY2024 and #95 in FY2025; down 18 since FY2022.
99	DAV Energy Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$344,722	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 40 since FY2022.
100	Patriot Strategies, LLC Top agencies VA (Department of Veterans Affairs)	$337,570	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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100 of 675 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC H9

Code	Net obligations	Largest contractor
H999 Other Quality Control, Testing and Inspection Services: Miscellaneous	$195,481,968	Danaher Corporation
H963 Other Quality Control, Testing and Inspection Services: Alarm, Signal, and Security Detection Systems	$20,836,277	Dark Wolf Solutions, LLC
H966 Other Quality Control, Testing and Inspection Services: Instruments and Laboratory Equipment	$3,872,550	Valogic Bio, LLC
H959 Other Quality Control, Testing and Inspection Services: Electrical and Electronic Equipment Components	$3,143,957	KOK Consulting Co., Ltd
H912 Other Quality Control, Testing and Inspection Services: Fire Control Equipment	$2,249,132	Optimum Low Voltage LLC
H946 Other Quality Control, Testing and Inspection Services: Water Purification and Sewage Treatment Equipment	$2,113,247	RLM Government Services LLC
H949 Other Quality Control, Testing and Inspection Services: Maintenance and Repair Shop Equipment	$1,524,727	Valley Wide Engineering & Construction, Inc.
H965 Other Quality Control, Testing and Inspection Services: Medical, Dental, and Veterinary Equipment and Supplies	$1,401,355	Winergy 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 $586 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 H9 contractors in FY2023?

1. Danaher Corporation ($92.1M), 2. Lockheed Martin Corporation ($84.1M), 3. L3Harris Technologies, Inc. ($64.8M), 4. RTX Corporation ($36.2M), 5. Johnson Controls Security Solutions LLC ($18.8M), 6. Parsons Corporation ($18M), 7. Man-Machine Systems Assessment (Msa), Incorporated ($16.4M), 8. Honeywell International Inc. ($15.2M), 9. Sparksoft Corporation ($14.8M), 10. Predictant, LLC ($14.5M).

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