Top 100 Contractors in PSC H9: Other Quality, Test, Inspect Services, FY2024

Name: Top 100 Contractors in PSC H9: Other Quality, Test, Inspect Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 66% of FY2024 PSC H9 contract dollars

Contract obligations: $468,592,553 Net of deobligations, by contracts coded PSC H9 or a code under it
Contractors: 659 Parent companies with an obligation
Largest contractor: L3Harris Technologies, Inc. $95.5 million, 18.1% 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	L3Harris Technologies, Inc. Through L3Harris Interstate Electronics Corporation Top agencies Navy (Department of the Navy)	$95,463,103	18.1%	Rank history: #3 in FY2021, #1 in FY2022, #3 in FY2023 and #1 in FY2025; up 2 since FY2023.
2	RTX Corporation 5 awardees, including Raytheon Company and Collins Elbit Vision Systems, LLC Top agencies MDA (DOD Missile Defense Agency)	$82,785,249	15.7%	Rank history: #1 in FY2021, #5 in FY2022, #4 in FY2023 and #2 in FY2025; up 2 since FY2023.
3	Veritas Capital Fund Management, L.L.C. Through Analex Corporation Top agencies Navy (Department of the Navy)	$59,823,799	11.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
4	Applied Research Associates, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$23,799,381	4.5%	Rank history: #58 in FY2021, not on the FY2022 list, #12 in FY2023 and #3 in FY2025; up 8 since FY2023.
5	Parsons Corporation Through Parsons Government Services Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$21,717,935	4.1%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #4 in FY2025; up 1 since FY2023.
6	Man-Machine Systems Assessment (Msa), Incorporated Top agencies Army (Department of the Army)	$18,790,462	3.6%	Rank history: #9 in FY2021, #6 in FY2022, #7 in FY2023 and #6 in FY2025; up 1 since FY2023.
7	Dark Wolf Solutions, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$14,984,347	2.8%	Rank history: #18 in FY2021, #14 in FY2022, #11 in FY2023 and #8 in FY2025; up 4 since FY2023.
8	Predictant, LLC Top agencies USAF (Department of the Air Force)	$11,033,257	2.1%	Rank history: #12 in FY2021, #7 in FY2022, #10 in FY2023 and #77 in FY2025; up 2 since FY2023.
9	Parsons Government Services Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$9,801,103	1.9%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
10	Lockheed Martin Corporation 3 awardees, including Lockheed Martin Coherent Technologies, Inc. Top agencies MDA (DOD Missile Defense Agency) DOT (Department of Transportation)	$9,193,218	1.7%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #10 in FY2025; down 8 since FY2023.
11	Joint Research and Development LLC Top agencies Army (Department of the Army)	$8,615,016	1.6%	Rank history: #13 in FY2021, #13 in FY2022, #14 in FY2023 and #15 in FY2025; up 3 since FY2023.
12	Johnson Controls Security Solutions LLC 2 awardees, including Johnson Controls Government Systems, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$8,533,661	1.6%	Rank history: #4 in FY2021, #3 in FY2022, #5 in FY2023 and not on the FY2025 list; down 7 since FY2023.
13	Valiant Global Defense Services Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$7,873,328	1.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
14	Tribal One Technology, LLC Top agencies USDA (Department of Agriculture)	$5,932,320	1.1%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #11 in FY2025; up 4 since FY2023.
15	System Dynamics International Incorporated Top agencies USAF (Department of the Air Force)	$5,472,674	1.0%	Rank history: #17 in FY2021, #15 in FY2022, #19 in FY2023 and #29 in FY2025; up 4 since FY2023.
16	Simpson Gumpertz & Heger Inc. Top agencies USAF (Department of the Air Force)	$5,042,196	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
17	Honeywell International Inc. 5 awardees Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$4,454,678	0.8%	Rank history: #8 in FY2021, #10 in FY2022, #8 in FY2023 and #12 in FY2025; down 9 since FY2023.
18	Next Generation Logistics, LLC Top agencies Army (Department of the Army)	$4,007,854	0.8%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and #40 in FY2025; up 29 since FY2023.
19	Elektro Noack GMBH Top agencies DOS (Department of State)	$3,726,555	0.7%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and not on the FY2025 list; up 67 since FY2023.
20	Korea Electric Power Jeonuhoe Through JW Business Company Top agencies Army (Department of the Army)	$3,535,136	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
21	Vista Defense Technologies, LLC Top agencies DHA (Defense Health Agency)	$3,507,697	0.7%	Rank history: #19 in FY2021, #18 in FY2022, #26 in FY2023 and #18 in FY2025; up 5 since FY2023.
22	Johnson Controls Inc 2 awardees, including Johnson Controls Fire Protection LP Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$3,383,545	0.6%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; new.
23	Nemean Solutions LLC Top agencies DHS (Department of Homeland Security)	$3,049,727	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
24	Sunshine Aero Industries, Incorporated Top agencies USAF (Department of the Air Force)	$2,877,589	0.5%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
25	Solid Blend Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$2,431,011	0.5%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
26	BMA Technical Services, Inc. Top agencies Army (Department of the Army)	$2,191,000	0.4%	Rank history: #15 in FY2021, #24 in FY2022, #29 in FY2023 and #24 in FY2025; up 3 since FY2023.
27	Johnson Controls Industries Through Johnson Controls, Inc. Top agencies Army (Department of the Army)	$2,059,736	0.4%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and not on the FY2025 list; down 5 since FY2023.
28	Graybar Electric Company, Inc. Top agencies SSA (Social Security Administration)	$1,917,331	0.4%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #45 in FY2025; up 20 since FY2023.
29	Agilent Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$1,806,887	0.3%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
30	The Boeing Company 2 awardees Top agencies USAF (Department of the Air Force)	$1,744,720	0.3%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2025 list; up 43 since FY2023.
31	Aqua Survey, Inc. Top agencies Army (Department of the Army)	$1,723,828	0.3%	Rank history: not on the FY2021 list, #51 in FY2022, #46 in FY2023 and #34 in FY2025; up 15 since FY2023.
32	Tribologik Corp Top agencies Navy (Department of the Navy)	$1,585,855	0.3%	Rank history: #77 in FY2021, not on the FY2022 list, #30 in FY2023 and #27 in FY2025; down 2 since FY2023.
33	AAR Government Services Inc. Through AAR Allen Services, Inc. Top agencies USAF (Department of the Air Force)	$1,582,702	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
34	Korea Housing Management Co.,Ltd Top agencies Army (Department of the Army)	$1,579,312	0.3%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
35	Nelbud Services Group Inc. Through Nelbud Services LLC Top agencies WHS (DOD Washington Headquarters Service)	$1,530,058	0.3%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
36	Battelle Memorial Institute Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,516,775	0.3%	Rank history: #84 in FY2021, not on the FY2022 list, #60 in FY2023 and #38 in FY2025; up 24 since FY2023.
37	Cotecna Inspection Inc. Top agencies USDA (Department of Agriculture)	$1,501,224	0.3%	Rank history: #50 in FY2021, #26 in FY2022, #56 in FY2023 and not on the FY2025 list; up 19 since FY2023.
38	Data Quality Science, LLC Top agencies HHS (Department of Health and Human Services)	$1,463,402	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #37 in FY2023 and #32 in FY2025; down 1 since FY2023.
39	Peak Signals, LLC Top agencies Navy (Department of the Navy)	$1,436,754	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 370 since FY2023.
40	Hamilton Associates Inc. Top agencies DOE (Department of Energy)	$1,359,612	0.3%	Rank history: #30 in FY2021, #34 in FY2022, #40 in FY2023 and #53 in FY2025; unchanged since FY2023.
41	Obsidian Solutions Group LLC Top agencies DTRA (Defense Threat Reduction Agency)	$1,329,331	0.3%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #36 in FY2025; down 8 since FY2023.
42	Credere Associates, LLC Top agencies Navy (Department of the Navy)	$1,293,970	0.2%	Rank history: #98 in FY2021, not on the FY2022–FY2023 lists and #76 in FY2025; returned.
43	National Facility Solutions LLC Through Enviros LLC Top agencies VA (Department of Veterans Affairs)	$1,250,194	0.2%	Rank history: not on the FY2021 list, #93 in FY2022, #77 in FY2023 and #47 in FY2025; up 34 since FY2023.
44	Gartner, Inc. Top agencies DOS (Department of State)	$1,245,813	0.2%	Rank history: #54 in FY2021, #25 in FY2022, #50 in FY2023 and #49 in FY2025; up 6 since FY2023.
45	Accura Engineering and Consulting Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,206,167	0.2%	Rank history: #34 in FY2021, #49 in FY2022, #38 in FY2023 and #42 in FY2025; down 7 since FY2023.
46	AECOM Through AECOM Usa, Inc. Top agencies Army (Department of the Army)	$1,148,628	0.2%	Rank history: #14 in FY2021, #40 in FY2022, #43 in FY2023 and #30 in FY2025; down 3 since FY2023.
47	The Mitre Corporation Top agencies DHS (Department of Homeland Security)	$1,130,000	0.2%	Rank history: #32 in FY2021, not on the FY2022 list, #27 in FY2023 and not on the FY2025 list; down 20 since FY2023.
48	Rmgs Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$990,941	0.2%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #43 in FY2025; down 32 since FY2023.
49	Gstek Inc. Top agencies Navy (Department of the Navy)	$934,287	0.2%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #39 in FY2025; up 2 since FY2023.
50	Valogic Bio, LLC Top agencies HHS (Department of Health and Human Services)	$923,331	0.2%	Rank history: #67 in FY2021, #38 in FY2022, #35 in FY2023 and #33 in FY2025; down 15 since FY2023.
51	WGL Energy Services Inc. 2 awardees Top agencies DOJ (Department of Justice)	$823,960	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #68 in FY2025; up 14 since FY2023.
52	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$814,957	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and not on the FY2025 list; up 12 since FY2023.
53	Applied Spectra Inc. Top agencies DOE (Department of Energy)	$778,761	0.1%	Rank history: not on the FY2021 list, #32 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
54	AMA Consulting LLC Top agencies ED (Department of Education)	$744,702	0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2025; new.
55	Calspan, LLC Top agencies DOT (Department of Transportation)	$733,442	0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; new.
56	Level 3 Associates, LLC Top agencies Army (Department of the Army)	$726,716	0.1%	Rank history: #21 in FY2021, #47 in FY2022, #36 in FY2023 and not on the FY2025 list; down 20 since FY2023.
57	LG Strategies LLC Top agencies VA (Department of Veterans Affairs)	$722,650	0.1%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2025; new.
58	Verda Medical Systems, LLC Top agencies VA (Department of Veterans Affairs)	$635,982	0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
59	Aarcorp Through AAR Allen Services, Inc. Top agencies USAF (Department of the Air Force)	$628,072	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 109 since FY2023.
60	Ricardo PLC 2 awardees Top agencies DOT (Department of Transportation)	$614,259	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2025 list; up 25 since FY2023.
61	Ad Hoc Research Associates LLC Top agencies Army (Department of the Army)	$581,987	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 300 since FY2023.
62	Unified Industries Incorporated Top agencies Navy (Department of the Navy)	$562,305	0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #72 in FY2023 and #57 in FY2025; up 10 since FY2023.
63	Hurtvet Subcontracting LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$516,769	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 60 since FY2023.
64	WEX Inc. Top agencies USDA (Department of Agriculture)	$508,666	0.1%	Rank history: #63 in FY2021, #78 in FY2022, not on the FY2023 list and #52 in FY2025; up 41 since FY2023.
65	RC TECH Inc. Top agencies DOL (Department of Labor)	$507,765	0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #80 in FY2023 and #67 in FY2025; up 15 since FY2023.
66	Brice AECOM JV2 Top agencies Army (Department of the Army)	$495,675	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	KOK Consulting Co., Ltd Top agencies Army (Department of the Army)	$473,318	0.1%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023 and #66 in FY2025; down 1 since FY2023.
68	Camfil USA Inc. Top agencies USDA (Department of Agriculture)	$471,634	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
69	Fisher Bioservices Inc. Top agencies HHS (Department of Health and Human Services)	$459,397	0.1%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
70	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)	$455,896	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2025 list; up 21 since FY2023.
71	ASR International Corp. Top agencies DOI (Department of the Interior)	$432,336	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Siemens Industry Inc. Top agencies VA (Department of Veterans Affairs)	$431,235	0.1%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
73	Las Americas Petroleum Services Corporation Top agencies VA (Department of Veterans Affairs)	$423,802	0.1%	Rank history: #89 in FY2021, #59 in FY2022, not on the FY2023 list and #69 in FY2025; up 56 since FY2023.
74	Heritage Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$421,629	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 32 since FY2023.
75	I-2-I Solutions, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) VA (Department of Veterans Affairs)	$416,379	0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2025; new.
76	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs)	$411,311	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, #87 in FY2023 and #62 in FY2025; up 11 since FY2023.
77	Near Earth Autonomy, Inc. Top agencies USAF (Department of the Air Force)	$402,521	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Premier Water & Energy Technology Inc. Top agencies GSA (General Services Administration)	$400,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; up 46 since FY2023.
79	Comfort Systems USA Inc. Through S.m. Lawrence Company, Inc. Top agencies VA (Department of Veterans Affairs)	$387,036	0.1%	Rank history: not on the FY2021 list, #62 in FY2022, #53 in FY2023 and not on the FY2025 list; down 26 since FY2023.
80	Goss Service Associates LLC Top agencies VA (Department of Veterans Affairs)	$368,843	0.1%	Rank history: #76 in FY2021, #75 in FY2022, not on the FY2023 list and #94 in FY2025; returned.
81	Nuaxis LLC Top agencies DOL (Department of Labor)	$343,397	0.1%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list and #72 in FY2025; up 34 since FY2023.
82	Great West Drilling, Inc. Top agencies DOI (Department of the Interior)	$342,408	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	MGA Research Corporation Top agencies DOT (Department of Transportation)	$334,045	0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2025; new.
84	Verina-Pars JV Top agencies Army (Department of the Army)	$333,249	0.1%	Rank history: not on the FY2021 list, #83 in FY2022, #78 in FY2023 and not on the FY2025 list; down 6 since FY2023.
85	LND Technical Services LLC Top agencies VA (Department of Veterans Affairs)	$329,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Cameron Strategic Management LLC Top agencies VA (Department of Veterans Affairs)	$326,050	0.1%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2025; new.
87	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$323,665	0.1%	Rank history: #70 in FY2021, #80 in FY2022, #98 in FY2023 and #95 in FY2025; up 11 since FY2023.
88	Markon LLC Top agencies DOI (Department of the Interior)	$321,380	0.1%	Rank history: #22 in FY2021, #23 in FY2022, #45 in FY2023 and not on the FY2025 list; down 43 since FY2023.
89	Terracon Consultants Inc. Top agencies Army (Department of the Army)	$321,259	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 102 since FY2023.
90	Mclellan Integrated Professional Services LLC Top agencies VA (Department of Veterans Affairs)	$318,025	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; new.
91	RLM Government Services LLC Top agencies VA (Department of Veterans Affairs)	$304,862	0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #82 in FY2025; down 2 since FY2023.
92	Eagle Harbor, LLC Top agencies Navy (Department of the Navy)	$295,480	0.1%	Rank history: not on the FY2021 list, #22 in FY2022, #59 in FY2023 and #19 in FY2025; down 33 since FY2023.
93	Brink'S Holdings Ltd Through Brink's, Incorporated Top agencies DOS (Department of State)	$293,723	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Grafik Industries, Ltd. Top agencies DOL (Department of Labor)	$291,249	0.1%	Rank history: #40 in FY2021, #33 in FY2022, not on the FY2023 list and not on the FY2025 list; up 9 since FY2023.
95	Source Environmental Inc. Top agencies USDA (Department of Agriculture)	$290,400	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Etolin Strait Development Group LLC Top agencies Navy (Department of the Navy)	$282,764	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Health Systems Sciences, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$281,693	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 33 since FY2023.
98	Noble Supply & Logistics, LLC Top agencies EPA (Environmental Protection Agency) Army (Department of the Army)	$274,346	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Daebo Engineering & Construction Co., Ltd. Top agencies Army (Department of the Army)	$274,301	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Transcat, Inc. Top agencies DHS (Department of Homeland Security)	$273,068	0.1%	Rank history: #87 in FY2021, #87 in FY2022, not on the FY2023 list and not on the FY2025 list; up 10 since FY2023.

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100 of 659 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	$88,353,436	Applied Research Associates, Inc.
H963 Other Quality Control, Testing and Inspection Services: Alarm, Signal, and Security Detection Systems	$21,037,087	Dark Wolf Solutions, LLC
H946 Other Quality Control, Testing and Inspection Services: Water Purification and Sewage Treatment Equipment	$4,651,381	Solid Blend Technologies, Inc.
H966 Other Quality Control, Testing and Inspection Services: Instruments and Laboratory Equipment	$3,310,210	Valogic Bio, LLC
H965 Other Quality Control, Testing and Inspection Services: Medical, Dental, and Veterinary Equipment and Supplies	$2,667,420	LG Strategies LLC
H949 Other Quality Control, Testing and Inspection Services: Maintenance and Repair Shop Equipment	$2,379,401	Peak Signals, LLC
H912 Other Quality Control, Testing and Inspection Services: Fire Control Equipment	$2,359,265	Optimum Low Voltage 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 $528 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 FY2024?

1. L3Harris Technologies, Inc. ($95.5M), 2. RTX Corporation ($82.8M), 3. Veritas Capital Fund Management, L.L.C. ($59.8M), 4. Applied Research Associates, Inc. ($23.8M), 5. Parsons Corporation ($21.7M), 6. Man-Machine Systems Assessment (Msa), Incorporated ($18.8M), 7. Dark Wolf Solutions, LLC ($15M), 8. Predictant, LLC ($11M), 9. Parsons Government Services Inc. ($9.8M), 10. Lockheed Martin Corporation ($9.19M).

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