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

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

The top 10 won 77% of PSC J063 contract dollars from August 2025 through July 2026

Contract obligations: $721,757,079 Net of deobligations, by contracts coded PSC J063
Contractors: 482 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $242 million, 32.8% 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	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)	$242,125,080	32.8%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since Aug 2024–Jul 2025.
2	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$200,300,156	27.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
3	M.c. Dean, Inc. 2 awardees Top agencies AOUSC (Administrative Office of the U.S. Courts) Commerce (Department of Commerce) DOT (Department of Transportation)	$26,930,414	3.6%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023, #4 in FY2024 and #4 in FY2025; up 1 since Aug 2024–Jul 2025.
4	Sentrillion Corporation Top agencies DHS (Department of Homeland Security)	$22,705,416	3.1%	Rank history: not on the FY2021 list, #48 in FY2022, #9 in FY2023, #7 in FY2024 and #7 in FY2025; up 2 since Aug 2024–Jul 2025.
5	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$19,480,270	2.6%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; up 3 since Aug 2024–Jul 2025.
6	Constellis, LLC Through Triple Canopy Inc. Top agencies DHS (Department of Homeland Security)	$13,359,105	1.8%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
7	KBR Wyle Services LLC 2 awardees Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$12,770,843	1.7%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #6 in FY2025; down 2 since Aug 2024–Jul 2025.
8	General Dynamics Corporation Through General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$10,824,499	1.5%	Rank history: #3 in FY2021, #4 in FY2022, #4 in FY2023, #3 in FY2024 and #3 in FY2025; down 5 since Aug 2024–Jul 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)	$9,487,384	1.3%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #9 in FY2025; unchanged since Aug 2024–Jul 2025.
10	Cherokee Federal Solutions L.L.C. Top agencies Treasury (Department of the Treasury)	$7,786,772	1.1%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023, #13 in FY2024 and #12 in FY2025; up 5 since Aug 2024–Jul 2025.
11	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$7,554,104	1.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
12	Cynergy Professional Systems LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) Army (Department of the Army)	$6,903,664	0.9%	Rank history: #9 in FY2021, #8 in FY2022, #10 in FY2023, #11 in FY2024 and #13 in FY2025; up 2 since Aug 2024–Jul 2025.
13	ITC Defense Corp Top agencies Navy (Department of the Navy)	$6,364,649	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
14	Tyco Fire Products LP 2 awardees, including Johnson Controls, Inc. and Johnson Controls Fire Protection LP Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$6,082,168	0.8%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #11 in FY2025; down 3 since Aug 2024–Jul 2025.
15	Media Plumbing & Heating Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$5,963,535	0.8%	Rank history: #71 in FY2021, #44 in FY2022, #41 in FY2023, #16 in FY2024 and #14 in FY2025; down 2 since Aug 2024–Jul 2025.
16	Integrated Security Technologies, Inc. Top agencies EOP (Executive Office of the President) Navy (Department of the Navy) Commerce (Department of Commerce)	$5,411,130	0.7%	Rank history: #27 in FY2021, #41 in FY2022, #25 in FY2023, #29 in FY2024 and #27 in FY2025; up 7 since Aug 2024–Jul 2025.
17	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)	$4,853,334	0.7%	Rank history: #38 in FY2021, #19 in FY2022, #24 in FY2023, not on the FY2024 list and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	Sev1Tech, LLC Top agencies Navy (Department of the Navy)	$4,325,493	0.6%	Rank history: #74 in FY2021, #15 in FY2022, #7 in FY2023, #18 in FY2024 and #88 in FY2025; up 7 since Aug 2024–Jul 2025.
19	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$4,079,843	0.6%	Rank history: #8 in FY2021, #39 in FY2022, #8 in FY2023, #9 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
20	Siemens Corporation 2 awardees, including Siemens Industry Inc. and Siemens Government Technologies Inc. Top agencies VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense) USDA (Department of Agriculture)	$3,874,798	0.5%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Signet Technologies, Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) Army (Department of the Army)	$3,601,083	0.5%	Rank history: #17 in FY2021, #20 in FY2022, #23 in FY2023, #15 in FY2024 and #17 in FY2025; down 9 since Aug 2024–Jul 2025.
22	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,517,155	0.5%	Rank history: #19 in FY2021, #24 in FY2022, #14 in FY2023, #19 in FY2024 and #20 in FY2025; down 2 since Aug 2024–Jul 2025.
23	Puyenpa Technologies LLC 2 awardees Top agencies NRC (Nuclear Regulatory Commission)	$3,223,959	0.4%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; up 35 since Aug 2024–Jul 2025.
24	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)	$3,053,324	0.4%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Smiths Detection Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,930,040	0.4%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #10 in FY2025; down 15 since Aug 2024–Jul 2025.
26	Johnson Controls Security Solutions LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$2,929,272	0.4%	Rank history: #7 in FY2021, #7 in FY2022, #19 in FY2023, #23 in FY2024 and #26 in FY2025; up 20 since Aug 2024–Jul 2025.
27	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. and Parsons Government Services Inc. Top agencies Smithsonian (Smithsonian Institution) DOS (Department of State)	$2,918,977	0.4%	Rank history: not on the FY2021 list, #11 in FY2022, #16 in FY2023, #38 in FY2024 and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$2,594,450	0.4%	Rank history: not on the FY2021 list, #58 in FY2022, #53 in FY2023, #41 in FY2024 and #23 in FY2025; down 4 since Aug 2024–Jul 2025.
29	Seneca Federal Solutions, LLC Top agencies DHA (Defense Health Agency)	$2,382,281	0.3%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 14 since Aug 2024–Jul 2025.
30	Nana Regional Corporation, Inc. Through Akima Global Logistics, LLC Top agencies HHS (Department of Health and Human Services)	$2,050,938	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Systems Engineering Services Corporation Through Systems Engineering Inc. Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$1,931,776	0.3%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #30 in FY2025; down 2 since Aug 2024–Jul 2025.
32	North American Consulting Services Inc. Through Executive Technologies Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,917,193	0.3%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33	Trofholz Technologies, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) USDA (Department of Agriculture)	$1,727,264	0.2%	Rank history: #12 in FY2021, #13 in FY2022, #12 in FY2023, #14 in FY2024 and #16 in FY2025; down 17 since Aug 2024–Jul 2025.
34	Applied Management Corp Top agencies Navy (Department of the Navy)	$1,388,000	0.2%	Rank history: not on the FY2021 list, #53 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
35	Scdatacom LLC Top agencies VA (Department of Veterans Affairs) DISA (Defense Information Systems Agency) Army (Department of the Army)	$1,384,887	0.2%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #93 in FY2024 and #33 in FY2025; up 20 since Aug 2024–Jul 2025.
36	Hurtvet Subcontracting LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$1,342,681	0.2%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #32 in FY2025; down 2 since Aug 2024–Jul 2025.
37	Pamunkey Indian Enterprises - Professional Services (Pie-Ps) Top agencies Army (Department of the Army)	$1,313,187	0.2%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 26 since Aug 2024–Jul 2025.
38	Rock Creek Logistics, Technology, & Management Business Solutions LLC Top agencies Army (Department of the Army)	$1,232,290	0.2%	Rank history: #78 in FY2021, #89 in FY2022, #81 in FY2023, #45 in FY2024 and #44 in FY2025; down 1 since Aug 2024–Jul 2025.
39	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 and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	M3T Corporation Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,202,985	0.2%	Rank history: #68 in FY2021, #69 in FY2022, #57 in FY2023, #42 in FY2024 and #40 in FY2025; down 8 since Aug 2024–Jul 2025.
41	Systems Northwest, LLC Top agencies HHS (Department of Health and Human Services)	$1,182,269	0.2%	Rank history: #23 in FY2021, #38 in FY2022, #27 in FY2023, #26 in FY2024 and #82 in FY2025; down 2 since Aug 2024–Jul 2025.
42	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$1,156,313	0.2%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #41 in FY2025; up 6 since Aug 2024–Jul 2025.
43	K'oyitl'ots'ina, Limited Through Kcorp Reliance Company, Inc. Top agencies Army (Department of the Army)	$1,153,150	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44	Integrity Protection Systems LLC Top agencies VA (Department of Veterans Affairs)	$1,045,208	0.1%	Rank history: #35 in FY2021, #62 in FY2022, #52 in FY2023, #54 in FY2024 and #43 in FY2025; up 7 since Aug 2024–Jul 2025.
45	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,034,269	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, not on the FY2023 list, #69 in FY2024 and #46 in FY2025; up 50 since Aug 2024–Jul 2025.
46	Intellimar Inc. Through Concentric Security LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) DHS (Department of Homeland Security)	$985,446	0.1%	Rank history: #48 in FY2021, #63 in FY2022, #55 in FY2023, not on the FY2024 list and #31 in FY2025; up 233 since Aug 2024–Jul 2025.
47	Star Communication Inc. Top agencies VA (Department of Veterans Affairs)	$970,654	0.1%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 17 since Aug 2024–Jul 2025.
48	Smartnet, Inc. Top agencies USDA (Department of Agriculture) Navy (Department of the Navy) USAF (Department of the Air Force)	$931,119	0.1%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and #42 in FY2025; up 6 since Aug 2024–Jul 2025.
49	Warfeather, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$904,350	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, #25 in FY2024 and #28 in FY2025; down 27 since Aug 2024–Jul 2025.
50	Security2000 LLC Top agencies Army (Department of the Army)	$893,118	0.1%	Rank history: #21 in FY2021, #40 in FY2022, #42 in FY2023, #47 in FY2024 and #37 in FY2025; down 17 since Aug 2024–Jul 2025.
51	Johnson Controls Federal Systems, LLC 2 awardees, including Johnson Controls Building Automation Systems, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHA (Defense Health Agency)	$882,193	0.1%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	CS One Co., Ltd. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$812,138	0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; up 15 since Aug 2024–Jul 2025.
53	Electronic Specialty Co Top agencies VA (Department of Veterans Affairs)	$666,700	0.1%	Rank history: #59 in FY2021, #71 in FY2022, #92 in FY2023, #73 in FY2024 and #52 in FY2025; up 9 since Aug 2024–Jul 2025.
54	Connected Technology Integrators, Inc. 2 awardees, including Security Install Solutions, Inc. Top agencies DFC (International Development Finance Corporation) DOI (Department of the Interior) USAF (Department of the Air Force)	$657,673	0.1%	Rank history: not on the FY2021 list, #32 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	GSC Systems Inc. Top agencies USAF (Department of the Air Force)	$644,352	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Fairwinds Technologies LLC Top agencies DHA (Defense Health Agency)	$640,440	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	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 Aug 2024–Jul 2025.
58	Firelake Construction Inc. Top agencies Army (Department of the Army)	$568,355	0.1%	Rank history: #25 in FY2021, #33 in FY2022, #31 in FY2023, #36 in FY2024 and #18 in FY2025; down 39 since Aug 2024–Jul 2025.
59	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 not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
60	J2 Associates, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHA (Defense Health Agency)	$547,928	0.1%	Rank history: #99 in FY2021, not on the FY2022–FY2023 lists, #92 in FY2024 and #58 in FY2025; down 3 since Aug 2024–Jul 2025.
61	Beta Information Technology Solutions LLC Top agencies USAF (Department of the Air Force)	$534,104	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Acustaf Development Corp Top agencies VA (Department of Veterans Affairs)	$526,112	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63	Low Voltage Wiring Ltd Top agencies Army (Department of the Army)	$508,745	0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #69 in FY2025; up 21 since Aug 2024–Jul 2025.
64	Kastle Systems LLC Top agencies CFTC (Commodity Futures Trading Commission) OSC (US Office of Special Counsel) DOI (Department of the Interior)	$505,447	0.1%	Rank history: #81 in FY2021, #91 in FY2022, #98 in FY2023, #87 in FY2024 and #70 in FY2025; up 28 since Aug 2024–Jul 2025.
65	International Fire Protection Inc 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 Aug 2024–Jul 2025.
66	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 #63 in FY2025; up 9 since Aug 2024–Jul 2025.
67	Inspired Solutions Inc. Top agencies USAF (Department of the Air Force)	$470,998	0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68	Diversified Laboratory Repair Inc. Top agencies Smithsonian (Smithsonian Institution)	$464,400	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	Mihashi Marketing International Corporation Top agencies Navy (Department of the Navy)	$457,733	0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; up 3 since Aug 2024–Jul 2025.
70	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 Aug 2024–Jul 2025.
71	Dal Media Solutions Inc. Top agencies DHA (Defense Health Agency) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$444,896	0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 261 since Aug 2024–Jul 2025.
72	Itm4G LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$436,618	0.1%	Rank history: #18 in FY2021, #22 in FY2022, #34 in FY2023, #83 in FY2024 and #68 in FY2025; up 14 since Aug 2024–Jul 2025.
73	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 #65 in FY2025; up 31 since Aug 2024–Jul 2025.
74	Security Integration Group Inc. Top agencies VA (Department of Veterans Affairs)	$409,874	0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #87 in FY2023, #82 in FY2024 and #71 in FY2025; up 15 since Aug 2024–Jul 2025.
75	Veteran Elevated Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$406,320	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	Advanced Communication Cabling Inc. Top agencies Army (Department of the Army)	$396,015	0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #79 in FY2025; up 12 since Aug 2024–Jul 2025.
77	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 #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78	R.s. Security Consulting, Ltd. Top agencies USAF (Department of the Air Force)	$392,351	0.1%	Rank history: not on the FY2021–FY2025 lists; up 59 since Aug 2024–Jul 2025.
79	Redhawk It Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$383,670	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 12 since Aug 2024–Jul 2025.
80	Persistent Sentinel LLC Top agencies Army (Department of the Army)	$370,924	0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 25 since Aug 2024–Jul 2025.
81	Cherokee Nation 2 awardees, including Cherokee Nation Defense Solutions LLC and Cherokee Nation Armored Solutions, LLC Top agencies Army (Department of the Army)	$366,163	<0.1%	Rank history: #11 in FY2021, #12 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Mammoth Fire Alarms, Inc. Top agencies VA (Department of Veterans Affairs)	$349,547	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 291 since Aug 2024–Jul 2025.
83	Versar, Inc. Through Versar Security Systems, LLC Top agencies DLA (Defense Logistics Agency) DFAS (Defense Finance and Accounting Service) AOUSC (Administrative Office of the U.S. Courts)	$347,343	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$345,544	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 71 since Aug 2024–Jul 2025.
85	Janus Advisory Group LLC Top agencies VA (Department of Veterans Affairs)	$339,239	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #66 in FY2025; down 2 since Aug 2024–Jul 2025.
86	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 #83 in FY2025; up 28 since Aug 2024–Jul 2025.
87	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 #74 in FY2025; up 7 since Aug 2024–Jul 2025.
88	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 Aug 2024–Jul 2025.
89	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 Aug 2024–Jul 2025.
90	Little River Government Contracting, LLC Top agencies USAF (Department of the Air Force)	$315,671	<0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; down 31 since Aug 2024–Jul 2025.
91	Point Security Inc Top agencies SEC (Securities and Exchange Commission) SSA (Social Security Administration) DOS (Department of State)	$314,195	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 28 since Aug 2024–Jul 2025.
92	Logical Control Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$312,532	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 216 since Aug 2024–Jul 2025.
93	Pavion Corp. 3 awardees, including AFA Protective Systems Inc. and Integrated Security Solutions Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) EOP (Executive Office of the President)	$304,907	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 171 since Aug 2024–Jul 2025.
94	Federal Signal Corp Top agencies USAF (Department of the Air Force)	$302,345	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
95	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 #80 in FY2025; up 4 since Aug 2024–Jul 2025.
96	F-Concepts, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$298,857	<0.1%	Rank history: #64 in FY2021, #77 in FY2022, not on the FY2023 list, #55 in FY2024 and #90 in FY2025; down 3 since Aug 2024–Jul 2025.
97	BAE Systems Through BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$290,087	<0.1%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and not on the FY2025 list; down 76 since Aug 2024–Jul 2025.
98	Corg Management Group LLC Top agencies Army (Department of the Army)	$284,768	<0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 26 since Aug 2024–Jul 2025.
99	Locurrent Systems, LLC Top agencies Army (Department of the Army)	$282,096	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 17 since Aug 2024–Jul 2025.
100	Metro Surveillance Systems, Inc. Top agencies Army (Department of the Army)	$279,196	<0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, #51 in FY2024 and not on the FY2025 list; down 47 since Aug 2024–Jul 2025.

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100 of 482 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 $739 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 J063 contractors in Aug 2025–Jul 2026?

1. Leidos Holdings, Inc. ($242M), 2. Techflow, Inc. ($200M), 3. M.c. Dean, Inc. ($26.9M), 4. Sentrillion Corporation ($22.7M), 5. Science Applications International Corporation ($19.5M), 6. Constellis, LLC ($13.4M), 7. KBR Wyle Services LLC ($12.8M), 8. General Dynamics Corporation ($10.8M), 9. V2X, Inc. ($9.49M), 10. Cherokee Federal Solutions L.L.C. ($7.79M).

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