Top 100 Contractors in PSC J063: Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems, FY2025

Name: Top 100 Contractors in PSC J063: Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems, 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 81% of FY2025 PSC J063 contract dollars

Contract obligations: $782,447,021 Net of deobligations, by contracts coded PSC J063
Contractors: 492 Parent companies with an obligation
Largest contractor: Techflow, Inc. $244 million, 30.3% 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	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$244,284,403	30.3%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$211,435,069	26.2%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	General Dynamics Corporation 2 awardees, including General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency)	$40,710,793	5.0%	Rank history: #3 in FY2021, #4 in FY2022, #4 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	M.c. Dean, Inc. 2 awardees, including M.c. Dean Europe GMBH Top agencies AOUSC (Administrative Office of the U.S. Courts) Navy (Department of the Navy) Commerce (Department of Commerce)	$37,397,267	4.6%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$33,900,118	4.2%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2023 and #5 in FY2024; unchanged since FY2024.
6	KBR Wyle Services LLC 2 awardees Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$33,234,390	4.1%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; unchanged since FY2024.
7	Sentrillion Corporation Top agencies DHS (Department of Homeland Security)	$22,109,665	2.7%	Rank history: not on the FY2021 list, #48 in FY2022, #9 in FY2023 and #7 in FY2024; unchanged since FY2024.
8	Constellis, LLC Through Triple Canopy Inc. Top agencies DHS (Department of Homeland Security)	$10,908,366	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
9	V2X, Inc. Through Advantor Systems II LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$10,320,579	1.3%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 1 since FY2024.
10	Smiths Detection Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) Navy (Department of the Navy)	$9,047,086	1.1%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; up 10 since FY2024.
11	Tyco Fire Products LP 2 awardees, including Johnson Controls Fire Protection LP and Johnson Controls, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) USDA (Department of Agriculture)	$8,877,842	1.1%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 10 since FY2024.
12	Cherokee Federal Solutions L.L.C. Top agencies Treasury (Department of the Treasury)	$5,909,365	0.7%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #13 in FY2024; up 1 since FY2024.
13	Cynergy Professional Systems LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) Army (Department of the Army)	$5,670,685	0.7%	Rank history: #9 in FY2021, #8 in FY2022, #10 in FY2023 and #11 in FY2024; down 2 since FY2024.
14	Media Plumbing & Heating Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$5,486,638	0.7%	Rank history: #71 in FY2021, #44 in FY2022, #41 in FY2023 and #16 in FY2024; up 2 since FY2024.
15	Afognak Native Corporation 2 awardees, including Red Peak Technical Services, LLC and Shields Point LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,938,916	0.6%	Rank history: #38 in FY2021, #19 in FY2022, #24 in FY2023 and not on the FY2024 list; up 107 since FY2024.
16	Trofholz Technologies, Inc. Top agencies USSOCOM (United States Special Operations Command) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$3,798,347	0.5%	Rank history: #12 in FY2021, #13 in FY2022, #12 in FY2023 and #14 in FY2024; down 2 since FY2024.
17	Signet Technologies, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOI (Department of the Interior)	$3,754,783	0.5%	Rank history: #17 in FY2021, #20 in FY2022, #23 in FY2023 and #15 in FY2024; down 2 since FY2024.
18	Firelake Construction Inc. Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$3,331,972	0.4%	Rank history: #25 in FY2021, #33 in FY2022, #31 in FY2023 and #36 in FY2024; up 18 since FY2024.
19	Parsons Corporation 3 awardees, including Ptsi Managed Services Inc. and Parsons Government Services Inc. Top agencies Smithsonian (Smithsonian Institution) DOS (Department of State)	$3,267,506	0.4%	Rank history: not on the FY2021 list, #11 in FY2022, #16 in FY2023 and #38 in FY2024; up 19 since FY2024.
20	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$2,942,008	0.4%	Rank history: #19 in FY2021, #24 in FY2022, #14 in FY2023 and #19 in FY2024; down 1 since FY2024.
21	Siemens Industry Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) USDA (Department of Agriculture)	$2,935,586	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
22	The Chenega Corporation 2 awardees, including Chenega Security International, LLC and Chenega Sentinel 360, LLC Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy) DHA (Defense Health Agency)	$2,900,400	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
23	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$2,525,755	0.3%	Rank history: not on the FY2021 list, #58 in FY2022, #53 in FY2023 and #41 in FY2024; up 18 since FY2024.
24	Puyenpa Technologies LLC 2 awardees, including Puyenpa Services, LLC Top agencies NRC (Nuclear Regulatory Commission)	$2,202,659	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
25	Johnson Controls Federal Systems, LLC 2 awardees, including Johnson Controls Building Automation Systems, LLC Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,816,157	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
26	Johnson Controls Security Solutions LLC Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) AOUSC (Administrative Office of the U.S. Courts)	$1,777,206	0.2%	Rank history: #7 in FY2021, #7 in FY2022, #19 in FY2023 and #23 in FY2024; down 3 since FY2024.
27	Integrated Security Technologies, Inc. Top agencies EOP (Executive Office of the President) Navy (Department of the Navy) Commerce (Department of Commerce)	$1,763,908	0.2%	Rank history: #27 in FY2021, #41 in FY2022, #25 in FY2023 and #29 in FY2024; up 2 since FY2024.
28	Warfeather, LLC Top agencies Army (Department of the Army)	$1,733,512	0.2%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #25 in FY2024; down 3 since FY2024.
29	Seneca Federal Solutions, LLC Top agencies DHA (Defense Health Agency)	$1,689,329	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
30	Systems Engineering Services Corporation Through Systems Engineering Inc. Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$1,466,465	0.2%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; down 2 since FY2024.
31	Intellimar Inc. 2 awardees, including Concentric Security LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) DHS (Department of Homeland Security)	$1,436,044	0.2%	Rank history: #48 in FY2021, #63 in FY2022, #55 in FY2023 and not on the FY2024 list; up 187 since FY2024.
32	Hurtvet Subcontracting LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$1,378,972	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 66 since FY2024.
33	Scdatacom LLC Top agencies DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$1,328,242	0.2%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #93 in FY2024; up 60 since FY2024.
34	North American Consulting Services Inc. Through Executive Technologies Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,293,361	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
35	Star Communication Inc. Top agencies VA (Department of Veterans Affairs)	$1,256,302	0.2%	Rank history: not on the FY2021–FY2024 lists; up 73 since FY2024.
36	Safran Power USA LLC Through Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$1,219,323	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
37	Security2000 LLC Top agencies Army (Department of the Army)	$1,041,418	0.1%	Rank history: #21 in FY2021, #40 in FY2022, #42 in FY2023 and #47 in FY2024; up 10 since FY2024.
38	Honeywell International Inc. 3 awardees Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) Army (Department of the Army)	$1,035,739	0.1%	Rank history: #96 in FY2021, #42 in FY2022, #22 in FY2023 and #24 in FY2024; down 14 since FY2024.
39	Digital Air Control, Inc. Top agencies Army (Department of the Army)	$1,029,631	0.1%	Rank history: #47 in FY2021, #66 in FY2022 and not on the FY2023–FY2024 lists; returned.
40	M3T Corporation Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,016,692	0.1%	Rank history: #68 in FY2021, #69 in FY2022, #57 in FY2023 and #42 in FY2024; up 2 since FY2024.
41	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$811,112	0.1%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 26 since FY2024.
42	Smartnet, Inc. Top agencies USDA (Department of Agriculture) Navy (Department of the Navy) USAF (Department of the Air Force)	$810,910	0.1%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 43 since FY2024.
43	Integrity Protection Systems LLC Top agencies VA (Department of Veterans Affairs)	$768,871	0.1%	Rank history: #35 in FY2021, #62 in FY2022, #52 in FY2023 and #54 in FY2024; up 11 since FY2024.
44	Rock Creek Logistics, Technology, & Management Business Solutions LLC Top agencies Army (Department of the Army)	$756,108	0.1%	Rank history: #78 in FY2021, #89 in FY2022, #81 in FY2023 and #45 in FY2024; up 1 since FY2024.
45	C4I Engineering Services, LLC Top agencies DLA (Defense Logistics Agency)	$729,503	0.1%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 11 since FY2024.
46	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$720,430	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, not on the FY2023 list and #69 in FY2024; up 23 since FY2024.
47	Zeva Incorporated Top agencies VA (Department of Veterans Affairs)	$702,727	0.1%	Rank history: #53 in FY2021, #83 in FY2022, #73 in FY2023 and not on the FY2024 list; up 68 since FY2024.
48	Little River Government Contracting, LLC Top agencies USAF (Department of the Air Force)	$684,830	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	CS One Co., Ltd. Top agencies Navy (Department of the Navy)	$660,797	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
50	Fairwinds Technologies LLC Top agencies DHA (Defense Health Agency)	$640,440	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
51	Pamunkey Indian Enterprises - Professional Services (Pie-Ps) Top agencies Army (Department of the Army)	$638,489	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
52	Electronic Specialty Co Top agencies VA (Department of Veterans Affairs)	$635,416	0.1%	Rank history: #59 in FY2021, #71 in FY2022, #92 in FY2023 and #73 in FY2024; up 21 since FY2024.
53	Government Contracting Services LLC Top agencies USAF (Department of the Air Force)	$598,114	0.1%	Rank history: #84 in FY2021, not on the FY2022 list, #56 in FY2023 and not on the FY2024 list; up 183 since FY2024.
54	Advanced IT Concepts LLC Top agencies Army (Department of the Army)	$595,990	0.1%	Rank history: #44 in FY2021, #49 in FY2022, #37 in FY2023 and #46 in FY2024; down 8 since FY2024.
55	Northeast Protection Partners, Inc. Top agencies DHA (Defense Health Agency)	$595,787	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
56	Protech Security, Inc. Through Viking Security LLC Top agencies VA (Department of Veterans Affairs)	$561,199	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #67 in FY2023 and not on the FY2024 list; returned.
57	Acustaf Development Corp Top agencies VA (Department of Veterans Affairs)	$526,112	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
58	J2 Associates, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$506,977	0.1%	Rank history: #99 in FY2021, not on the FY2022–FY2023 lists and #92 in FY2024; up 34 since FY2024.
59	Corelogix Consulting Inc. Top agencies DHS (Department of Homeland Security)	$499,830	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2024 list; up 43 since FY2024.
60	Inspired Solutions Inc. Top agencies USAF (Department of the Air Force)	$470,998	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	Diversified Laboratory Repair Inc. Top agencies Smithsonian (Smithsonian Institution)	$464,400	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Anduril Industries Inc. Top agencies USAF (Department of the Air Force)	$462,324	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; up 13 since FY2024.
63	Pass, L.l.c Top agencies VA (Department of Veterans Affairs)	$450,833	0.1%	Rank history: #89 in FY2021, #93 in FY2022, #82 in FY2023 and #74 in FY2024; up 11 since FY2024.
64	Dal Media Solutions Inc. Top agencies DHA (Defense Health Agency) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$443,901	0.1%	Rank history: not on the FY2021–FY2024 lists; up 355 since FY2024.
65	Cam-Dex Corporation Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$430,094	0.1%	Rank history: #61 in FY2021, not on the FY2022 list, #99 in FY2023 and #68 in FY2024; up 3 since FY2024.
66	Janus Advisory Group LLC Top agencies VA (Department of Veterans Affairs)	$427,870	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 23 since FY2024.
67	Red Heritage Media LLC Top agencies DOE (Department of Energy)	$425,395	0.1%	Rank history: #45 in FY2021, #88 in FY2022, #88 in FY2023 and #86 in FY2024; up 19 since FY2024.
68	Itm4G LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$416,242	0.1%	Rank history: #18 in FY2021, #22 in FY2022, #34 in FY2023 and #83 in FY2024; up 15 since FY2024.
69	Low Voltage Wiring Ltd Top agencies Army (Department of the Army)	$412,081	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 10 since FY2024.
70	Kastle Systems LLC Top agencies CFTC (Commodity Futures Trading Commission) DOI (Department of the Interior) Navy (Department of the Navy)	$392,041	<0.1%	Rank history: #81 in FY2021, #91 in FY2022, #98 in FY2023 and #87 in FY2024; up 17 since FY2024.
71	Security Integration Group Inc. Top agencies VA (Department of Veterans Affairs)	$387,542	<0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #87 in FY2023 and #82 in FY2024; up 11 since FY2024.
72	Redhawk It Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$382,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	Analogic Corp Top agencies DHS (Department of Homeland Security)	$379,676	<0.1%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; down 23 since FY2024.
74	C & C Sales Inc. Top agencies VA (Department of Veterans Affairs)	$369,640	<0.1%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 6 since FY2024.
75	C. Smith Construction LLC Top agencies USAF (Department of the Air Force)	$366,034	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Cherokee Nation Defense Solutions LLC Top agencies Army (Department of the Army)	$364,698	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Mihashi Marketing International Corporation Top agencies Navy (Department of the Navy)	$362,171	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
78	E.norman Security Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$358,674	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list and #78 in FY2024; unchanged since FY2024.
79	Advanced Communication Cabling Inc. Top agencies Army (Department of the Army)	$349,133	<0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 12 since FY2024.
80	Secsol Inc. Top agencies VA (Department of Veterans Affairs)	$347,573	<0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; down 18 since FY2024.
81	Colsa Corp Through Colsa Solutions Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$346,335	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Systems Northwest, LLC Top agencies HHS (Department of Health and Human Services)	$344,184	<0.1%	Rank history: #23 in FY2021, #38 in FY2022, #27 in FY2023 and #26 in FY2024; down 56 since FY2024.
83	Lavish Life Technologies LLC Top agencies USAF (Department of the Air Force)	$330,926	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 20 since FY2024.
84	Bay State Alarm Security, Inc. Top agencies VA (Department of Veterans Affairs)	$322,597	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 81 since FY2024.
85	Persistent Sentinel LLC Top agencies Army (Department of the Army)	$312,140	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Federal Signal Corp Top agencies USAF (Department of the Air Force)	$309,627	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 241 since FY2024.
87	Innovative Controls Group, LLC Top agencies VA (Department of Veterans Affairs)	$309,092	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
88	Sev1Tech, LLC Top agencies Navy (Department of the Navy)	$307,061	<0.1%	Rank history: #74 in FY2021, #15 in FY2022, #7 in FY2023 and #18 in FY2024; down 70 since FY2024.
89	Fuduric GMBH & Co. KG Top agencies Army (Department of the Army)	$298,281	<0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 10 since FY2024.
90	F-Concepts, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$295,848	<0.1%	Rank history: #64 in FY2021, #77 in FY2022, not on the FY2023 list and #55 in FY2024; down 35 since FY2024.
91	Aml-American Made Logistics Top agencies VA (Department of Veterans Affairs)	$294,208	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Digitronics, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$291,314	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 272 since FY2024.
93	Koch Enterprises Inc. Through South Western Communications Inc. Top agencies VA (Department of Veterans Affairs)	$291,055	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	RAE Security, Inc. Through RAE Security Southwest, LLC Top agencies Army (Department of the Army)	$277,106	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Corg Management Group LLC Top agencies Army (Department of the Army)	$274,970	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 10 since FY2024.
96	Hurley JV, LLP Top agencies VA (Department of Veterans Affairs)	$268,885	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Electron Italia - Societa a Responsabilita Limitata Top agencies Navy (Department of the Navy)	$267,197	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 131 since FY2024.
98	Arabic Interpreters LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$266,150	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Condortech Services, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$266,105	<0.1%	Rank history: #76 in FY2021, not on the FY2022 list, #61 in FY2023 and not on the FY2024 list; returned.
100	Locurrent Systems, LLC Top agencies Army (Department of the Army)	$264,651	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 38 since FY2024.

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100 of 492 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 $806 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 J063 contractors in FY2025?

1. Techflow, Inc. ($244M), 2. Leidos Holdings, Inc. ($211M), 3. General Dynamics Corporation ($40.7M), 4. M.c. Dean, Inc. ($37.4M), 5. Science Applications International Corporation ($33.9M), 6. KBR Wyle Services LLC ($33.2M), 7. Sentrillion Corporation ($22.1M), 8. Constellis, LLC ($10.9M), 9. V2X, Inc. ($10.3M), 10. Smiths Detection Inc. ($9.05M).

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