Top 100 Contractors in PSC H2: Equipment and Materials Testing, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC H2: Equipment and Materials Testing, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC H2: Equipment and Materials Testing, FY2025.

The top 10 won 62% of PSC H2 contract dollars from August 2025 through July 2026

Contract obligations: $816,662,681 Net of deobligations, by contracts coded PSC H2 or a code under it
Contractors: 679 Parent companies with an obligation
Largest contractor: Reliance Test & Technology, LLC $121 million, 13.9% of obligations
Data as of: Nov 5, 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	Reliance Test & Technology, LLC Top agencies USAF (Department of the Air Force)	$121,472,571	13.9%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Hermeus Corp Top agencies OSD (Office of the Secretary of Defense)	$85,000,000	9.7%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #19 in FY2025; up 8 since Aug 2024–Jul 2025.
3	Global C2 Integration Technologies LLC Top agencies USAF (Department of the Air Force)	$68,286,640	7.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	National Security Technology Accelerator Inc. Top agencies Navy (Department of the Navy)	$55,604,124	6.4%	Rank history: #13 in FY2021, #22 in FY2022, #25 in FY2023, #63 in FY2024 and #14 in FY2025; up 26 since Aug 2024–Jul 2025.
5	Bering Straits Native Corporation Through Arcticom, LLC Top agencies USAF (Department of the Air Force)	$48,771,984	5.6%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	CHG Group Inc 2 awardees, including Alloy Surfaces Co Inc. and Chemring Energetic Devices Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$45,377,816	5.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7	Unmanned Systems Incorporated Top agencies USAF (Department of the Air Force)	$39,047,242	4.5%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; down 3 since Aug 2024–Jul 2025.
8	Northrop Grumman Systems Corporation 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$29,432,248	3.4%	Rank history: #4 in FY2021, #3 in FY2022, #6 in FY2023, #9 in FY2024 and #4 in FY2025; unchanged since Aug 2024–Jul 2025.
9	Calista Corp Through Yulista Contract Services LLC Top agencies Army (Department of the Army)	$23,114,000	2.6%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
10	Ensco Inc. Top agencies DOT (Department of Transportation)	$20,669,994	2.4%	Rank history: not on the FY2021 list, #36 in FY2022, #12 in FY2023, #11 in FY2024 and #10 in FY2025; up 2 since Aug 2024–Jul 2025.
11	General Dynamics Corporation 3 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$20,557,557	2.4%	Rank history: #10 in FY2021, #12 in FY2022, #13 in FY2023, #12 in FY2024 and #8 in FY2025; unchanged since Aug 2024–Jul 2025.
12	The Bionetics Corporation Top agencies USAF (Department of the Air Force)	$18,438,844	2.1%	Rank history: #8 in FY2021, #9 in FY2022, #11 in FY2023, #10 in FY2024 and #9 in FY2025; down 3 since Aug 2024–Jul 2025.
13	L3Harris Technologies, Inc. 2 awardees, including L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$18,174,028	2.1%	Rank history: #7 in FY2021, #2 in FY2022, #2 in FY2023, #7 in FY2024 and #5 in FY2025; down 8 since Aug 2024–Jul 2025.
14	Science Applications International Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$11,713,437	1.3%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #22 in FY2025; up 8 since Aug 2024–Jul 2025.
15	Global Technology and Management Resources Inc. Top agencies Navy (Department of the Navy)	$11,350,194	1.3%	Rank history: #17 in FY2021, #19 in FY2022, #21 in FY2023, #21 in FY2024 and #21 in FY2025; up 8 since Aug 2024–Jul 2025.
16	Mikel, Inc. Top agencies Navy (Department of the Navy)	$10,592,655	1.2%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
17	Atlas Technologies Inc. Top agencies Navy (Department of the Navy)	$10,590,887	1.2%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #17 in FY2025; unchanged since Aug 2024–Jul 2025.
18	Atec Inc. Top agencies USAF (Department of the Air Force)	$9,892,275	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19	RTX Corporation 8 awardees, including Raytheon Company and Rockwell Collins, Inc. Top agencies USAF (Department of the Air Force)	$9,280,341	1.1%	Rank history: #1 in FY2021, #6 in FY2022, #8 in FY2023, #3 in FY2024 and #7 in FY2025; down 16 since Aug 2024–Jul 2025.
20	The Whiskey Project Group Ltd Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$8,562,296	1.0%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, #81 in FY2024 and #16 in FY2025; up 11 since Aug 2024–Jul 2025.
21	Georgia TECH Applied Research Corp Top agencies OSD (Office of the Secretary of Defense) MDA (DOD Missile Defense Agency)	$7,890,966	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
22	Systems & Technology Research LLC Top agencies USAF (Department of the Air Force)	$6,936,781	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	Leidos Holdings, Inc. 2 awardees, including Dynetics, Inc. and Leidos, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$6,868,877	0.8%	Rank history: #25 in FY2021, #38 in FY2022, #47 in FY2023, #45 in FY2024 and #15 in FY2025; up 46 since Aug 2024–Jul 2025.
24	Regal Rexnord Corporation Through L3 Technologies, Inc. Top agencies Navy (Department of the Navy)	$6,050,000	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25	The Boeing Company 3 awardees Top agencies USAF (Department of the Air Force)	$5,533,728	0.6%	Rank history: #6 in FY2021, #8 in FY2022, #7 in FY2023, #4 in FY2024 and #30 in FY2025; down 19 since Aug 2024–Jul 2025.
26	Rocket Lab USA Inc. Through Rocket Lab National Security LLC Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$5,290,000	0.6%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Coastal Helicopters, Inc. Top agencies Navy (Department of the Navy)	$5,260,826	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
28	The Charles Stark Draper Laboratory, Inc. Top agencies USAF (Department of the Air Force)	$4,939,301	0.6%	Rank history: #18 in FY2021, #17 in FY2022, #23 in FY2023, #26 in FY2024 and #24 in FY2025; down 3 since Aug 2024–Jul 2025.
29	Eagle Systems Inc. Top agencies Navy (Department of the Navy)	$4,536,236	0.5%	Rank history: #20 in FY2021, #24 in FY2022, #26 in FY2023, #31 in FY2024 and #29 in FY2025; unchanged since Aug 2024–Jul 2025.
30	Tetra Tech, Inc. Through Tetra TECH Railai Inc. Top agencies DOT (Department of Transportation)	$3,104,067	0.4%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
31	Explore Digits Inc Top agencies USAID (US Agency for International Development)	$3,081,256	0.4%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #36 in FY2025; up 34 since Aug 2024–Jul 2025.
32	CAE Inc. 2 awardees, including CAE USA Inc. Top agencies USAF (Department of the Air Force)	$2,885,582	0.3%	Rank history: #15 in FY2021, #25 in FY2022, #24 in FY2023, not on the FY2024 list and #25 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33	SDV Office Systems LLC Top agencies VA (Department of Veterans Affairs)	$2,581,059	0.3%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	Alpha Technology Associate Inc. Top agencies DOT (Department of Transportation)	$2,518,419	0.3%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Fultonst1 LLC Top agencies DLA (Defense Logistics Agency)	$2,496,534	0.3%	Rank history: #29 in FY2021, #59 in FY2022, #83 in FY2023, #69 in FY2024 and #33 in FY2025; up 15 since Aug 2024–Jul 2025.
36	California Department of Public Health Top agencies HHS (Department of Health and Human Services)	$2,397,652	0.3%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
37	The Survice Engineering Company LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$2,335,719	0.3%	Rank history: #22 in FY2021, #35 in FY2022, #34 in FY2023, #42 in FY2024 and #44 in FY2025; unchanged since Aug 2024–Jul 2025.
38	Air Company Holdings, Inc. Top agencies OSD (Office of the Secretary of Defense)	$2,300,000	0.3%	Rank history: not on the FY2021 list, #47 in FY2022, #28 in FY2023, #20 in FY2024 and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Solutions Through Innovative Technologies Inc. Top agencies USAF (Department of the Air Force)	$2,291,180	0.3%	Rank history: not on the FY2021 list, #42 in FY2022, #35 in FY2023, #29 in FY2024 and #40 in FY2025; down 11 since Aug 2024–Jul 2025.
40	Georgia TECH Research Corp Through Georgia TECH Applied Research Corp Top agencies MDA (DOD Missile Defense Agency)	$2,215,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41	Arti / Bionetics LLC Joint Venture 3 Top agencies DOT (Department of Transportation)	$2,213,090	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42	Applus Idiada Karco Engineering, LLC Top agencies DOT (Department of Transportation)	$2,085,295	0.2%	Rank history: #57 in FY2021, not on the FY2022 list, #48 in FY2023, #66 in FY2024 and #49 in FY2025; up 34 since Aug 2024–Jul 2025.
43	Cherokee Nation Operational Solutions, L.L.C. Top agencies DHA (Defense Health Agency)	$1,837,404	0.2%	Rank history: not on the FY2021 list, #15 in FY2022, #15 in FY2023, #36 in FY2024 and not on the FY2025 list; down 8 since Aug 2024–Jul 2025.
44	MGA Research Corporation 2 awardees Top agencies DOT (Department of Transportation)	$1,739,650	0.2%	Rank history: #64 in FY2021, #54 in FY2022, #51 in FY2023, not on the FY2024 list and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$1,706,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, #30 in FY2024 and #43 in FY2025; down 12 since Aug 2024–Jul 2025.
46	Bluepath Labs LLC Top agencies DHS (Department of Homeland Security)	$1,621,180	0.2%	Rank history: #33 in FY2021, #46 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
47	Safety Technology Holdings Inc. Through Humanetics Innovative Solutions, Inc. Top agencies DOT (Department of Transportation)	$1,573,562	0.2%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 46 since Aug 2024–Jul 2025.
48	Technical Communications Solutions Corp Top agencies Army (Department of the Army)	$1,564,386	0.2%	Rank history: not on the FY2021 list, #14 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	Dynamic Research, Inc. Top agencies DOT (Department of Transportation)	$1,516,135	0.2%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #47 in FY2025; down 1 since Aug 2024–Jul 2025.
50	Transportation Research Center Inc. Top agencies DOT (Department of Transportation)	$1,456,783	0.2%	Rank history: #94 in FY2021, not on the FY2022 list, #55 in FY2023, #71 in FY2024 and #53 in FY2025; up 22 since Aug 2024–Jul 2025.
51	Jung Research and Development Corp Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$1,438,383	0.2%	Rank history: not on the FY2021 list, #41 in FY2022, #39 in FY2023, #38 in FY2024 and #46 in FY2025; down 11 since Aug 2024–Jul 2025.
52	DAV Energy Solutions, Inc. Top agencies USAF (Department of the Air Force)	$1,308,647	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 233 since Aug 2024–Jul 2025.
53	Spatial Front Inc Top agencies DOT (Department of Transportation)	$1,247,074	0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #65 in FY2025; up 4 since Aug 2024–Jul 2025.
54	PPI Technical Services LLC Top agencies USAF (Department of the Air Force)	$1,190,523	0.1%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023, #53 in FY2024 and #51 in FY2025; down 8 since Aug 2024–Jul 2025.
55	Fortive Corporation 4 awardees, including Pacific Scientific Energetic Materials Company (California Llc), Landauer, Inc. and Fluke Electronics Corp Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,153,779	0.1%	Rank history: not on the FY2021–FY2023 lists, #76 in FY2024 and #61 in FY2025; up 16 since Aug 2024–Jul 2025.
56	Spektreworks, Inc. Top agencies Army (Department of the Army)	$1,089,684	0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 22 since Aug 2024–Jul 2025.
57	Puretech Systems Inc. Top agencies DOT (Department of Transportation)	$1,088,265	0.1%	Rank history: #53 in FY2021, #85 in FY2022, #42 in FY2023, #34 in FY2024 and #62 in FY2025; down 4 since Aug 2024–Jul 2025.
58	Anduril Industries Inc. Top agencies USAF (Department of the Air Force)	$1,083,454	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies Army (Department of the Army)	$1,057,525	0.1%	Rank history: #49 in FY2021, #63 in FY2022, #73 in FY2023, #57 in FY2024 and #59 in FY2025; down 7 since Aug 2024–Jul 2025.
60	NTS Technical Systems, Llc. 3 awardees Top agencies Navy (Department of the Navy)	$984,549	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	Florida Department of Health Top agencies HHS (Department of Health and Human Services)	$947,203	0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and not on the FY2025 list; down 7 since Aug 2024–Jul 2025.
62	Tekla Research, Inc. Top agencies Navy (Department of the Navy)	$938,664	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, #71 in FY2023, #61 in FY2024 and #76 in FY2025; up 13 since Aug 2024–Jul 2025.
63	Michigan Department of Labor and Economic Opportunity Top agencies HHS (Department of Health and Human Services)	$914,297	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64	New Jersey Department of Environmental Protection Top agencies HHS (Department of Health and Human Services)	$913,843	0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Aug 2024–Jul 2025.
65	C.r.w. Mechanical, Inc. Top agencies VA (Department of Veterans Affairs)	$912,670	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	The Fields Group, LLC Top agencies FTC (Federal Trade Commission)	$909,923	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, #83 in FY2024 and #57 in FY2025; down 3 since Aug 2024–Jul 2025.
67	Occam Solutions, Inc. Top agencies Army (Department of the Army)	$902,981	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	DCS Corporation Top agencies USAF (Department of the Air Force)	$889,918	0.1%	Rank history: not on the FY2021 list, #51 in FY2022, not on the FY2023 list, #54 in FY2024 and #63 in FY2025; down 4 since Aug 2024–Jul 2025.
69	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs)	$804,000	0.1%	Rank history: not on the FY2021–FY2025 lists; up 261 since Aug 2024–Jul 2025.
70	NYS Department of Health Top agencies HHS (Department of Health and Human Services)	$801,731	0.1%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #67 in FY2025; down 12 since Aug 2024–Jul 2025.
71	Render Security Engineering LLC Top agencies Navy (Department of the Navy)	$782,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Winergy LLC Top agencies VA (Department of Veterans Affairs)	$754,798	0.1%	Rank history: #65 in FY2021, #71 in FY2022, #75 in FY2023, #68 in FY2024 and #69 in FY2025; down 4 since Aug 2024–Jul 2025.
73	Tyto Athene, LLC Top agencies Navy (Department of the Navy)	$725,804	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Keller's LLC Top agencies DOS (Department of State)	$716,968	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	Karagozian & Case, Inc. Top agencies DOS (Department of State)	$701,871	0.1%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #75 in FY2025; down 20 since Aug 2024–Jul 2025.
76	Calspan, LLC Top agencies DOT (Department of Transportation)	$685,276	0.1%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and not on the FY2025 list; up 16 since Aug 2024–Jul 2025.
77	City of New York Top agencies HHS (Department of Health and Human Services)	$681,729	0.1%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #70 in FY2025; down 10 since Aug 2024–Jul 2025.
78	Keysight Technologies, Inc. 2 awardees, including Spirent Federal Systems Inc. Top agencies Navy (Department of the Navy)	$676,383	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #86 in FY2023, #78 in FY2024 and #73 in FY2025; down 1 since Aug 2024–Jul 2025.
79	Missouri Department of Health & Senior Services Top agencies HHS (Department of Health and Human Services)	$648,638	0.1%	Rank history: not on the FY2021–FY2025 lists; up 29 since Aug 2024–Jul 2025.
80	Tyco Fire Products LP Through Johnson Controls Fire Protection LP Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) DOE (Department of Energy)	$629,686	0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; down 24 since Aug 2024–Jul 2025.
81	Esco Technologies Inc. Through Doble Engineering Company Top agencies DOI (Department of the Interior) DOE (Department of Energy) Army (Department of the Army)	$611,882	0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #74 in FY2025; down 7 since Aug 2024–Jul 2025.
82	The Smithers Group Inc Through Smithers MSE Inc. Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services)	$609,993	0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 298 since Aug 2024–Jul 2025.
83	The Building People LLC Top agencies USDA (Department of Agriculture)	$594,056	0.1%	Rank history: #74 in FY2021, #33 in FY2022, #33 in FY2023, #58 in FY2024 and #77 in FY2025; down 23 since Aug 2024–Jul 2025.
84	Oritain USA Inc. Top agencies DHS (Department of Homeland Security)	$589,325	0.1%	Rank history: not on the FY2021 list, #55 in FY2022, #76 in FY2023, not on the FY2024 list and #55 in FY2025; down 41 since Aug 2024–Jul 2025.
85	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$553,065	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
86	The Commonwealth of Massachusetts Through Massachusetts Department of Public Health Top agencies HHS (Department of Health and Human Services)	$513,925	0.1%	Rank history: #90 in FY2021, #99 in FY2022, not on the FY2023 list, #89 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
87	Wichita State University Top agencies Navy (Department of the Navy)	$491,358	0.1%	Rank history: not on the FY2021–FY2025 lists; up 103 since Aug 2024–Jul 2025.
88	Citrine LLC Top agencies VA (Department of Veterans Affairs)	$475,217	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89	Eleven Bravo Group, LLC Top agencies VA (Department of Veterans Affairs)	$471,741	0.1%	Rank history: not on the FY2021–FY2025 lists; up 104 since Aug 2024–Jul 2025.
90	Siemens Corporation 4 awardees, including Siemens Industry Inc., Siemens Medical Solutions Usa, Inc. and Brightly Software, Inc. Top agencies VA (Department of Veterans Affairs)	$464,747	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 13 since Aug 2024–Jul 2025.
91	Sedona- Nasco Joint Venture Top agencies Army (Department of the Army)	$464,499	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Sri International Top agencies Army (Department of the Army)	$455,759	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Motion Control Systems Inc. Top agencies Navy (Department of the Navy)	$440,174	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2023–FY2024 lists and #71 in FY2025; up 31 since Aug 2024–Jul 2025.
94	Tech62 Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$439,379	0.1%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #84 in FY2025; down 11 since Aug 2024–Jul 2025.
95	Noblis, Inc. Through Noblis MSD LLC Top agencies Navy (Department of the Navy)	$436,584	0.1%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
96	Arc Technology Solutions, LLC Top agencies DOT (Department of Transportation)	$436,500	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Clayton Co Consultants LLC Top agencies Army (Department of the Army)	$423,838	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Elcon Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$421,592	<0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; new, not ranked in Aug 2024–Jul 2025.
99	Linde Special Projects LLC Top agencies USAF (Department of the Air Force)	$402,753	<0.1%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023, not on the FY2024 list and #20 in FY2025; down 79 since Aug 2024–Jul 2025.
100	Finfrock Group LLC Top agencies USAF (Department of the Air Force)	$400,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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100 of 679 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC H2

Code	Net obligations	Largest contractor
H259 Equipment and Materials Testing: Electrical and Electronic Equipment Components	$125,186,038	Global C2 Integration Technologies LLC
H249 Equipment and Materials Testing: Maintenance and Repair Shop Equipment	$23,989,608	General Dynamics Corporation
H266 Equipment and Materials Testing: Instruments and Laboratory Equipment	$21,761,621	The Bionetics Corporation
H265 Equipment and Materials Testing: Medical, Dental, and Veterinary Equipment and Supplies	$16,143,248	California Department of Public Health
H270 Equipment and Materials Testing: Automatic Data Processing Equipment (Including Firmware), Software, Supplies and Support Equipment	$8,643,894	Systems & Technology Research LLC
H263 Equipment and Materials Testing: Alarm, Signal, and Security Detection Systems	$7,884,667	Science Applications International Corporation
H246 Equipment and Materials Testing: Water Purification and Sewage Treatment Equipment	$1,315,014	RLM Government Services LLC
H299 Equipment and Materials Testing: Miscellaneous	$51,443	Solutions Through Innovative Technologies Inc.
H212 Equipment and Materials Testing: Fire Control Equipment	-$13,534,870	Veterans Fire and Life Safety Corporation

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 $872 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Aug 2024–Jul 2025. "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.
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 H2 contractors in Aug 2025–Jul 2026?

1. Reliance Test & Technology, LLC ($121M), 2. Hermeus Corp ($85M), 3. Global C2 Integration Technologies LLC ($68.3M), 4. National Security Technology Accelerator Inc. ($55.6M), 5. Bering Straits Native Corporation ($48.8M), 6. CHG Group Inc ($45.4M), 7. Unmanned Systems Incorporated ($39M), 8. Northrop Grumman Systems Corporation ($29.4M), 9. Calista Corp ($23.1M), 10. Ensco Inc. ($20.7M).

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