Top 100 Contractors in PSC J063: Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC J063: Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 83% of PSC J063 contract dollars from July 2025 through June 2026

Contract obligations: $965,596,784 Net of deobligations, by contracts coded PSC J063
Contractors: 488 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $336 million, 34.0% 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	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$335,515,823	34.0%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$329,115,250	33.4%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
3	M.c. Dean, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) Commerce (Department of Commerce) DOT (Department of Transportation)	$37,782,501	3.8%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023, #4 in FY2024 and #4 in FY2025; up 1 since Jul 2024–Jun 2025.
4	General Dynamics Corporation Through General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$24,112,899	2.4%	Rank history: #3 in FY2021, #4 in FY2022, #4 in FY2023, #3 in FY2024 and #3 in FY2025; down 1 since Jul 2024–Jun 2025.
5	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$22,329,799	2.3%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; up 3 since Jul 2024–Jun 2025.
6	Sentrillion Corporation Top agencies DHS (Department of Homeland Security)	$20,128,431	2.0%	Rank history: not on the FY2021 list, #48 in FY2022, #9 in FY2023, #7 in FY2024 and #7 in FY2025; unchanged since Jul 2024–Jun 2025.
7	KBR Wyle Services LLC 2 awardees Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$17,054,585	1.7%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #6 in FY2025; down 2 since Jul 2024–Jun 2025.
8	Triple Canopy Inc. Top agencies DHS (Department of Homeland Security)	$13,193,612	1.3%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #8 in FY2025; down 1 since Jul 2024–Jun 2025.
9	V2X, Inc. Through Advantor Systems II LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$11,051,554	1.1%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #9 in FY2025; up 1 since Jul 2024–Jun 2025.
10	Cherokee Nation Security & Defense LLC Through Cherokee Federal Solutions, L.L.C. Top agencies Treasury (Department of the Treasury)	$7,751,775	0.8%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023, #13 in FY2024 and #12 in FY2025; up 7 since Jul 2024–Jun 2025.
11	Cynergy Professional Systems LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) Army (Department of the Army)	$6,890,762	0.7%	Rank history: #9 in FY2021, #8 in FY2022, #10 in FY2023, #11 in FY2024 and #13 in FY2025; up 3 since Jul 2024–Jun 2025.
12	ITC Defense Corp Top agencies Navy (Department of the Navy)	$6,364,649	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
13	Johnson Controls Inc 2 awardees, including Johnson Controls Fire Protection LP Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOJ (Department of Justice)	$6,236,787	0.6%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #11 in FY2025; down 2 since Jul 2024–Jun 2025.
14	Integrated Security Technologies, Inc. Top agencies EOP (Executive Office of the President) Navy (Department of the Navy) Commerce (Department of Commerce)	$5,275,853	0.5%	Rank history: #27 in FY2021, #41 in FY2022, #25 in FY2023, #29 in FY2024 and #26 in FY2025; up 8 since Jul 2024–Jun 2025.
15	Media Plumbing & Heating Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$5,174,381	0.5%	Rank history: #71 in FY2021, #44 in FY2022, #41 in FY2023, #16 in FY2024 and #14 in FY2025; down 2 since Jul 2024–Jun 2025.
16	Puyenpa Technologies LLC 2 awardees, including Puyenpa Services, LLC Top agencies NRC (Nuclear Regulatory Commission)	$3,938,959	0.4%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	Signet Technologies, Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) Navy (Department of the Navy)	$3,889,615	0.4%	Rank history: #17 in FY2021, #20 in FY2022, #23 in FY2023, #15 in FY2024 and #17 in FY2025; down 5 since Jul 2024–Jun 2025.
18	Sev1Tech, LLC Top agencies Navy (Department of the Navy)	$3,835,709	0.4%	Rank history: #74 in FY2021, #15 in FY2022, #7 in FY2023, #18 in FY2024 and #90 in FY2025; up 7 since Jul 2024–Jun 2025.
19	Red Peak Technical Services, LLC Top agencies Navy (Department of the Navy)	$3,818,489	0.4%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #15 in FY2025; up 10 since Jul 2024–Jun 2025.
20	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$3,708,272	0.4%	Rank history: #8 in FY2021, #39 in FY2022, #8 in FY2023, #9 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
21	Smiths Detection Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) Navy (Department of the Navy)	$3,307,607	0.3%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #10 in FY2025; down 12 since Jul 2024–Jun 2025.
22	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,284,865	0.3%	Rank history: #19 in FY2021, #24 in FY2022, #14 in FY2023, #19 in FY2024 and #20 in FY2025; down 4 since Jul 2024–Jun 2025.
23	Siemens Industry Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) Army (Department of the Army)	$2,828,907	0.3%	Rank history: not on the FY2021 list, #70 in FY2022, not on the FY2023 list, #39 in FY2024 and #21 in FY2025; down 7 since Jul 2024–Jun 2025.
24	Johnson Controls Security Solutions LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$2,655,019	0.3%	Rank history: #7 in FY2021, #7 in FY2022, #19 in FY2023, #23 in FY2024 and #25 in FY2025; up 3 since Jul 2024–Jun 2025.
25	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. and Parsons Government Services Inc. Top agencies Smithsonian (Smithsonian Institution) DOS (Department of State)	$2,593,695	0.3%	Rank history: not on the FY2021 list, #11 in FY2022, #16 in FY2023, #38 in FY2024 and #19 in FY2025; up 188 since Jul 2024–Jun 2025.
26	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$2,592,450	0.3%	Rank history: not on the FY2021 list, #58 in FY2022, #53 in FY2023, #41 in FY2024 and #22 in FY2025; down 2 since Jul 2024–Jun 2025.
27	Seneca Federal Solutions, LLC Top agencies DHA (Defense Health Agency)	$2,382,281	0.2%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; up 17 since Jul 2024–Jun 2025.
28	Trofholz Technologies, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) USDA (Department of Agriculture)	$1,964,171	0.2%	Rank history: #12 in FY2021, #13 in FY2022, #12 in FY2023, #14 in FY2024 and #16 in FY2025; down 13 since Jul 2024–Jun 2025.
29	Executive Technologies Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,937,632	0.2%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; up 79 since Jul 2024–Jun 2025.
30	Warfeather, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$1,758,864	0.2%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, #25 in FY2024 and #27 in FY2025; down 7 since Jul 2024–Jun 2025.
31	Systems Engineering Services Corporation Through Systems Engineering Inc. Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$1,736,972	0.2%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #30 in FY2025; down 1 since Jul 2024–Jun 2025.
32	Nana Regional Corporation, Inc. Through Akima Global Logistics, LLC Top agencies HHS (Department of Health and Human Services)	$1,712,200	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
33	Firelake Construction Inc Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$1,479,543	0.2%	Rank history: #25 in FY2021, #33 in FY2022, #31 in FY2023, #36 in FY2024 and #18 in FY2025; down 12 since Jul 2024–Jun 2025.
34	Applied Management Corp Top agencies Navy (Department of the Navy)	$1,388,000	0.1%	Rank history: not on the FY2021 list, #53 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
35	Scdatacom LLC Top agencies VA (Department of Veterans Affairs) DISA (Defense Information Systems Agency) Army (Department of the Army)	$1,384,887	0.1%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #93 in FY2024 and #34 in FY2025; up 14 since Jul 2024–Jun 2025.
36	Pamunkey Indian Enterprises - Professional Services (Pie-Ps) Top agencies Army (Department of the Army)	$1,348,187	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 24 since Jul 2024–Jun 2025.
37	Hurtvet Subcontracting LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$1,345,571	0.1%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #33 in FY2025; down 5 since Jul 2024–Jun 2025.
38	Rock Creek Logistics, Technology, & Management Business Solutions LLC Top agencies Army (Department of the Army)	$1,232,290	0.1%	Rank history: #78 in FY2021, #89 in FY2022, #81 in FY2023, #45 in FY2024 and #46 in FY2025; down 1 since Jul 2024–Jun 2025.
39	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$1,219,323	0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; down 3 since Jul 2024–Jun 2025.
40	Star Communication Inc. Top agencies VA (Department of Veterans Affairs)	$1,217,788	0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; down 5 since Jul 2024–Jun 2025.
41	M3T Corporation Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,183,381	0.1%	Rank history: #68 in FY2021, #69 in FY2022, #57 in FY2023, #42 in FY2024 and #41 in FY2025; down 1 since Jul 2024–Jun 2025.
42	Kcorp Reliance Company, Inc. Top agencies Army (Department of the Army)	$1,153,150	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
43	Chenega Security International, LLC Top agencies Navy (Department of the Navy)	$1,144,397	0.1%	Rank history: #31 in FY2021, #31 in FY2022, #32 in FY2023, #33 in FY2024 and #29 in FY2025; down 12 since Jul 2024–Jun 2025.
44	Systems Northwest, LLC Top agencies HHS (Department of Health and Human Services)	$1,130,680	0.1%	Rank history: #23 in FY2021, #38 in FY2022, #27 in FY2023, #26 in FY2024 and #84 in FY2025; down 5 since Jul 2024–Jun 2025.
45	Rapiscan Systems Inc Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$1,128,151	0.1%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #43 in FY2025; up 2 since Jul 2024–Jun 2025.
46	Digital Air Control, Inc. Top agencies Army (Department of the Army)	$1,064,240	0.1%	Rank history: #47 in FY2021, #66 in FY2022, not on the FY2023–FY2024 lists and #40 in FY2025; up 85 since Jul 2024–Jun 2025.
47	Security2000 LLC Top agencies Army (Department of the Army)	$1,062,316	0.1%	Rank history: #21 in FY2021, #40 in FY2022, #42 in FY2023, #47 in FY2024 and #38 in FY2025; down 4 since Jul 2024–Jun 2025.
48	Shields Point LLC Top agencies DHS (Department of Homeland Security)	$1,034,845	0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; down 3 since Jul 2024–Jun 2025.
49	Concentric Security LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) DHS (Department of Homeland Security)	$1,024,879	0.1%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #32 in FY2025; up 15 since Jul 2024–Jun 2025.
50	Siemens Corporation Through Siemens Government Technologies Inc. Top agencies OSD (Office of the Secretary of Defense)	$1,012,126	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,010,733	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, not on the FY2023 list, #69 in FY2024 and #48 in FY2025; up 26 since Jul 2024–Jun 2025.
52	Smartnet, Inc. Top agencies USDA (Department of Agriculture) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,004,947	0.1%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and #44 in FY2025; up 10 since Jul 2024–Jun 2025.
53	Little River Government Contracting, LLC Top agencies USAF (Department of the Air Force)	$1,000,501	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Jul 2024–Jun 2025.
54	Chenega Sentinel 360, LLC Top agencies DISA (Defense Information Systems Agency) EPA (Environmental Protection Agency)	$925,122	0.1%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; down 20 since Jul 2024–Jun 2025.
55	CS One Co., Ltd. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$821,080	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 8 since Jul 2024–Jun 2025.
56	Security Integration Group Inc. Top agencies VA (Department of Veterans Affairs)	$797,417	0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #87 in FY2023, #82 in FY2024 and #73 in FY2025; up 27 since Jul 2024–Jun 2025.
57	Security Install Solutions, Inc. Top agencies DFC (International Development Finance Corporation) DOI (Department of the Interior) GSA (General Services Administration)	$716,911	0.1%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and not on the FY2024–FY2025 lists; up 124 since Jul 2024–Jun 2025.
58	Electronic Specialty Co Top agencies VA (Department of Veterans Affairs)	$680,616	0.1%	Rank history: #59 in FY2021, #71 in FY2022, #92 in FY2023, #73 in FY2024 and #54 in FY2025; unchanged since Jul 2024–Jun 2025.
59	Johnson Controls Building Automation Systems, LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) Navy (Department of the Navy)	$671,308	0.1%	Rank history: #67 in FY2021, not on the FY2022–FY2023 lists, #63 in FY2024 and #24 in FY2025; down 11 since Jul 2024–Jun 2025.
60	Fairwinds Technologies LLC Top agencies DHA (Defense Health Agency)	$640,440	0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Jul 2024–Jun 2025.
61	Mihashi Marketing International Corporation Top agencies Navy (Department of the Navy)	$625,712	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 32 since Jul 2024–Jun 2025.
62	Range Construction LLC Top agencies DOI (Department of the Interior)	$597,022	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	Federal Signal Corporation Top agencies USAF (Department of the Air Force)	$591,809	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 63 since Jul 2024–Jun 2025.
64	Viking Security LLC Top agencies VA (Department of Veterans Affairs)	$561,199	0.1%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #58 in FY2025; up 1 since Jul 2024–Jun 2025.
65	J2 Associates, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHA (Defense Health Agency)	$544,777	0.1%	Rank history: #99 in FY2021, not on the FY2022–FY2023 lists, #92 in FY2024 and #60 in FY2025; down 10 since Jul 2024–Jun 2025.
66	Acustaf Development Corp Top agencies VA (Department of Veterans Affairs)	$526,112	0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
67	Locurrent Systems, LLC Top agencies Army (Department of the Army)	$508,035	0.1%	Rank history: not on the FY2021–FY2025 lists; up 206 since Jul 2024–Jun 2025.
68	Western States Fire Protection Co 2 awardees, including United States Alliance Fire Protection, Inc. and API Group Life Safety USA LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$495,905	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
69	Pass, L.l.c Top agencies VA (Department of Veterans Affairs)	$479,313	<0.1%	Rank history: #89 in FY2021, #93 in FY2022, #82 in FY2023, #74 in FY2024 and #65 in FY2025; up 4 since Jul 2024–Jun 2025.
70	Inspired Solutions Inc. Top agencies USAF (Department of the Air Force)	$470,998	<0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71	Trane Technologies Peru S.a.C. Through Diversified Laboratory Repair Inc. Top agencies Smithsonian (Smithsonian Institution)	$464,400	<0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	Active Security Consulting LLC Top agencies DHA (Defense Health Agency)	$453,265	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
73	Dal Media Solutions Inc. Top agencies DHA (Defense Health Agency) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$446,145	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 300 since Jul 2024–Jun 2025.
74	Janus Advisory Group LLC Top agencies VA (Department of Veterans Affairs)	$439,239	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #68 in FY2025; up 22 since Jul 2024–Jun 2025.
75	Itm4G LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$436,270	<0.1%	Rank history: #18 in FY2021, #22 in FY2022, #34 in FY2023, #83 in FY2024 and #70 in FY2025; up 6 since Jul 2024–Jun 2025.
76	Persistent Sentinel LLC Top agencies Army (Department of the Army)	$411,999	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 23 since Jul 2024–Jun 2025.
77	Cam-Dex Corporation Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHS (Department of Homeland Security)	$410,016	<0.1%	Rank history: #61 in FY2021, not on the FY2022 list, #99 in FY2023, #68 in FY2024 and #67 in FY2025; up 21 since Jul 2024–Jun 2025.
78	The Chenega Corporation 2 awardees, including Chenega Security International, LLC Top agencies DHA (Defense Health Agency)	$399,458	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
79	C. Smith Construction LLC Top agencies USAF (Department of the Air Force)	$395,573	<0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Jul 2024–Jun 2025.
80	Advanced Communication Cabling Inc. Top agencies Army (Department of the Army)	$394,564	<0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #81 in FY2025; up 6 since Jul 2024–Jun 2025.
81	Kastle Systems LLC Top agencies CFTC (Commodity Futures Trading Commission) DOI (Department of the Interior) Navy (Department of the Navy)	$387,865	<0.1%	Rank history: #81 in FY2021, #91 in FY2022, #98 in FY2023, #87 in FY2024 and #72 in FY2025; up 1 since Jul 2024–Jun 2025.
82	Government Contracting Services LLC Top agencies USAF (Department of the Air Force)	$386,858	<0.1%	Rank history: #84 in FY2021, not on the FY2022 list, #56 in FY2023, not on the FY2024 list and #55 in FY2025; up 32 since Jul 2024–Jun 2025.
83	Redhawk It Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$383,670	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 2 since Jul 2024–Jun 2025.
84	GSC Systems Inc. Top agencies USAF (Department of the Air Force)	$362,367	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
85	Versar Security Systems, LLC Top agencies DLA (Defense Logistics Agency) DFAS (Defense Finance and Accounting Service) AOUSC (Administrative Office of the U.S. Courts)	$348,852	<0.1%	Rank history: not on the FY2021 list, #45 in FY2022, not on the FY2023 list, #49 in FY2024 and not on the FY2025 list; down 1 since Jul 2024–Jun 2025.
86	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$345,544	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 63 since Jul 2024–Jun 2025.
87	F-Concepts, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$343,342	<0.1%	Rank history: #64 in FY2021, #77 in FY2022, not on the FY2023 list, #55 in FY2024 and #92 in FY2025; up 7 since Jul 2024–Jun 2025.
88	E.norman Security Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$341,208	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list, #78 in FY2024 and #80 in FY2025; down 8 since Jul 2024–Jun 2025.
89	Lavish Life Technologies LLC Top agencies USAF (Department of the Air Force)	$339,225	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 20 since Jul 2024–Jun 2025.
90	C & C Sales Inc. Top agencies VA (Department of Veterans Affairs)	$336,958	<0.1%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #76 in FY2025; down 3 since Jul 2024–Jun 2025.
91	Tanaka Gumi Tanaka Construction Konno Kensetsu JV Top agencies USAF (Department of the Air Force)	$335,357	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
92	Logical Control Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$321,443	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 177 since Jul 2024–Jun 2025.
93	Singhal & Co Inc Top agencies USAF (Department of the Air Force)	$320,988	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	Secsol Inc. Top agencies VA (Department of Veterans Affairs)	$299,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #82 in FY2025; down 26 since Jul 2024–Jun 2025.
95	Corbett Technology Solutions Inc. 2 awardees, including Pavion Corp. and AFA Protective Systems Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) EOP (Executive Office of the President)	$298,005	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 164 since Jul 2024–Jun 2025.
96	Global Grab Technologies, Inc. Top agencies USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$292,935	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 99 since Jul 2024–Jun 2025.
97	Corg Management Group LLC Top agencies Army (Department of the Army)	$284,768	<0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 21 since Jul 2024–Jun 2025.
98	Analogic Corp Top agencies DHS (Department of Homeland Security)	$277,608	<0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #75 in FY2025; down 52 since Jul 2024–Jun 2025.
99	RAE Security Southwest, LLC Top agencies Army (Department of the Army)	$277,106	<0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; new, not ranked in Jul 2024–Jun 2025.
100	Chief Technical Services LLC Top agencies VA (Department of Veterans Affairs)	$276,577	<0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and not on the FY2025 list; up 12 since Jul 2024–Jun 2025.

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100 of 488 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 $986 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.
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 Jul 2024–Jun 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 J063 contractors in Jul 2025–Jun 2026?

1. Leidos Holdings, Inc. ($336M), 2. Techflow, Inc. ($329M), 3. M.c. Dean, Inc. ($37.8M), 4. General Dynamics Corporation ($24.1M), 5. Science Applications International Corporation ($22.3M), 6. Sentrillion Corporation ($20.1M), 7. KBR Wyle Services LLC ($17.1M), 8. Triple Canopy Inc. ($13.2M), 9. V2X, Inc. ($11.1M), 10. Cherokee Nation Security & Defense LLC ($7.75M).

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