Top 100 Contractors in PSC J063: Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems, FY2023

Name: Top 100 Contractors in PSC J063: Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 80% of FY2023 PSC J063 contract dollars

Contract obligations: $689,021,582 Net of deobligations, by contracts coded PSC J063
Contractors: 477 Parent companies with an obligation
Largest contractor: Techflow, Inc. $214 million, 30.5% 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	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$214,326,392	30.5%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DOD (Department of Defense)	$197,208,507	28.1%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	M.c. Dean, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) Navy (Department of the Navy) DHS (Department of Homeland Security)	$37,012,198	5.3%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2024 and #4 in FY2025; unchanged since FY2022.
4	General Dynamics Corporation 2 awardees, including General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$25,468,092	3.6%	Rank history: #3 in FY2021, #4 in FY2022, #3 in FY2024 and #3 in FY2025; unchanged since FY2022.
5	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$23,623,589	3.4%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2024 and #5 in FY2025; unchanged since FY2022.
6	Omniplex World Services Corp Through Triple Canopy Inc. Top agencies DHS (Department of Homeland Security)	$17,682,673	2.5%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2024 and not on the FY2025 list; new.
7	Sev1Tech, LLC Top agencies Navy (Department of the Navy)	$16,797,588	2.4%	Rank history: #74 in FY2021, #15 in FY2022, #18 in FY2024 and #90 in FY2025; up 8 since FY2022.
8	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$14,546,574	2.1%	Rank history: #8 in FY2021, #39 in FY2022, #9 in FY2024 and not on the FY2025 list; up 31 since FY2022.
9	Sentrillion Corporation Top agencies DHS (Department of Homeland Security)	$8,366,308	1.2%	Rank history: not on the FY2021 list, #48 in FY2022, #7 in FY2024 and #7 in FY2025; up 39 since FY2022.
10	Cynergy Professional Systems LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$6,896,468	1.0%	Rank history: #9 in FY2021, #8 in FY2022, #11 in FY2024 and #13 in FY2025; down 2 since FY2022.
11	Serco Inc Top agencies Navy (Department of the Navy)	$5,169,465	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Trofholz Technologies Inc. 2 awardees Top agencies USSOCOM (United States Special Operations Command) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$4,962,552	0.7%	Rank history: #12 in FY2021, #13 in FY2022, #14 in FY2024 and #16 in FY2025; up 1 since FY2022.
13	Smiths Group PLC 2 awardees, including Smiths Detection Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) SEC (Securities and Exchange Commission)	$4,369,879	0.6%	Rank history: #15 in FY2021, #21 in FY2022, #95 in FY2024 and not on the FY2025 list; up 8 since FY2022.
14	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DFAS (Defense Finance and Accounting Service)	$4,272,040	0.6%	Rank history: #19 in FY2021, #24 in FY2022, #19 in FY2024 and #20 in FY2025; up 10 since FY2022.
15	Vectrus Systems Corporation Through Advantor Systems II LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$3,814,339	0.5%	Rank history: #10 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
16	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. and Williams Electric Co Inc. Top agencies Smithsonian (Smithsonian Institution) AOUSC (Administrative Office of the U.S. Courts)	$3,561,038	0.5%	Rank history: not on the FY2021 list, #11 in FY2022, #38 in FY2024 and #19 in FY2025; down 5 since FY2022.
17	Siemens Aktiengesellschaft 2 awardees, including Siemens Industry Inc. and Yunex GMBH Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$3,341,932	0.5%	Rank history: #13 in FY2021, #16 in FY2022, #35 in FY2024 and not on the FY2025 list; down 1 since FY2022.
18	Johnson Controls Industries 4 awardees, including Johnson Controls, Inc., Johnson Controls Building Automation Systems, LLC and Johnson Controls, K.K. Top agencies VA (Department of Veterans Affairs) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$3,270,406	0.5%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2024 and not on the FY2025 list; new.
19	Johnson Controls Security Solutions LLC 5 awardees, including Johnson Controls Building Automation Systems, LLC, Johnson Controls, Inc. and Johnson Controls Fire Protection LP Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$3,199,574	0.5%	Rank history: #7 in FY2021, #7 in FY2022, #23 in FY2024 and #25 in FY2025; down 12 since FY2022.
20	KBR Wyle Services, LLC Top agencies DOT (Department of Transportation)	$3,083,932	0.4%	Rank history: not on the FY2021 list, #23 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
21	Systems Engineering Inc. Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$2,901,950	0.4%	Rank history: not on the FY2021 list, #30 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
22	Honeywell International Inc. 4 awardees, including Vindicator Technologies, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$2,724,036	0.4%	Rank history: #96 in FY2021, #42 in FY2022, #24 in FY2024 and #39 in FY2025; up 20 since FY2022.
23	Signet Technologies Inc. 2 awardees, including Convergint Technologies LLC Top agencies DISA (Defense Information Systems Agency) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,463,203	0.4%	Rank history: #17 in FY2021, #20 in FY2022, #15 in FY2024 and #17 in FY2025; down 3 since FY2022.
24	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)	$2,443,823	0.3%	Rank history: #38 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
25	Integrated Security Technologies, Inc. 2 awardees Top agencies EOP (Executive Office of the President) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$2,427,608	0.3%	Rank history: #27 in FY2021, #41 in FY2022, #29 in FY2024 and #26 in FY2025; up 16 since FY2022.
26	Scdatacom LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$2,089,918	0.3%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2024 and #34 in FY2025; up 96 since FY2022.
27	Systems Northwest, LLC Top agencies HHS (Department of Health and Human Services)	$2,076,521	0.3%	Rank history: #23 in FY2021, #38 in FY2022, #26 in FY2024 and #84 in FY2025; up 11 since FY2022.
28	Cherokee Nation Security & Defense LLC Through Cherokee Federal Solutions, L.L.C. Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$1,928,812	0.3%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2024 and #12 in FY2025; new.
29	Security Install Solutions, Inc. Top agencies DOI (Department of the Interior) GSA (General Services Administration)	$1,813,996	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 113 since FY2022.
30	OSI Systems Inc. 2 awardees, including Rapiscan Systems Inc. and American Science & Engineering Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$1,733,755	0.2%	Rank history: #14 in FY2021, #27 in FY2022, #40 in FY2024 and not on the FY2025 list; down 3 since FY2022.
31	Firelake Construction Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$1,684,707	0.2%	Rank history: #25 in FY2021, #33 in FY2022, #36 in FY2024 and #18 in FY2025; up 2 since FY2022.
32	Chenega Security International, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,505,247	0.2%	Rank history: #31 in FY2021, #31 in FY2022, #33 in FY2024 and #29 in FY2025; down 1 since FY2022.
33	Security Operations Group International LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$1,408,733	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Itm4G LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) DHS (Department of Homeland Security)	$1,389,803	0.2%	Rank history: #18 in FY2021, #22 in FY2022, #83 in FY2024 and #70 in FY2025; down 12 since FY2022.
35	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$1,263,873	0.2%	Rank history: #52 in FY2021, #37 in FY2022, #43 in FY2024 and not on the FY2025 list; up 2 since FY2022.
36	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)	$1,192,241	0.2%	Rank history: #20 in FY2021, #29 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
37	Advanced IT Concepts LLC Top agencies Army (Department of the Army)	$1,159,661	0.2%	Rank history: #44 in FY2021, #49 in FY2022, #46 in FY2024 and #56 in FY2025; up 12 since FY2022.
38	Schneider Electric Buildings Americas Inc. Top agencies VA (Department of Veterans Affairs)	$1,137,497	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 349 since FY2022.
39	Heico Aerospace Corporat 2 awardees, including Sensor Technology Engineering LLC and Transformational Security, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$1,084,671	0.2%	Rank history: not on the FY2021 list, #46 in FY2022, #96 in FY2024 and not on the FY2025 list; up 7 since FY2022.
40	Johnson Controls Fire Protection LP Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,065,214	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	Media Plumbing & Heating Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Commerce (Department of Commerce)	$1,009,826	0.1%	Rank history: #71 in FY2021, #44 in FY2022, #16 in FY2024 and #14 in FY2025; up 3 since FY2022.
42	Security2000 LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$895,498	0.1%	Rank history: #21 in FY2021, #40 in FY2022, #47 in FY2024 and #38 in FY2025; down 2 since FY2022.
43	KJ TECH Co.,Ltd Top agencies Army (Department of the Army)	$872,411	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Hurtvet Subcontracting LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$855,631	0.1%	Rank history: #32 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
45	Surescan Corporation Top agencies DHS (Department of Homeland Security)	$816,018	0.1%	Rank history: #22 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
46	Puyenpa Services, LLC Top agencies NRC (Nuclear Regulatory Commission)	$806,000	0.1%	Rank history: not on the FY2021 list, #17 in FY2022, #27 in FY2024 and not on the FY2025 list; down 29 since FY2022.
47	BAE Systems PLC Through BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$802,689	0.1%	Rank history: #36 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
48	Blue Construction Services LLC Top agencies USAF (Department of the Air Force)	$799,734	0.1%	Rank history: #40 in FY2021, #50 in FY2022, #52 in FY2024 and not on the FY2025 list; up 2 since FY2022.
49	'Asta' Roofing & Construction, LLC Top agencies DHS (Department of Homeland Security)	$799,694	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
50	Analogic Corporation Top agencies DHS (Department of Homeland Security)	$779,173	0.1%	Rank history: #26 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
51	Mts3 Inc. Through Mandex Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$765,497	0.1%	Rank history: #43 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
52	Integrity Protection Systems LLC Top agencies VA (Department of Veterans Affairs)	$751,733	0.1%	Rank history: #35 in FY2021, #62 in FY2022, #54 in FY2024 and #45 in FY2025; up 10 since FY2022.
53	Veterans Fire and Life Safety Corporation Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$728,880	0.1%	Rank history: not on the FY2021 list, #58 in FY2022, #41 in FY2024 and #22 in FY2025; up 5 since FY2022.
54	Mitomo Denki Service Co. Ltd. Through Mitomo Co., Ltd. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$688,750	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 326 since FY2022.
55	Intellimar Inc. 2 awardees, including Concentric Security LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOI (Department of the Interior)	$669,886	0.1%	Rank history: #48 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
56	Government Contracting Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$643,697	0.1%	Rank history: #84 in FY2021, not on the FY2022 list, not on the FY2024 list and #55 in FY2025; up 79 since FY2022.
57	M3T Corporation Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$616,323	0.1%	Rank history: #68 in FY2021, #69 in FY2022, #42 in FY2024 and #41 in FY2025; up 12 since FY2022.
58	Point Security Inc. Top agencies DOT (Department of Transportation)	$615,008	0.1%	Rank history: #54 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
59	X Cell Management Inc. 2 awardees Top agencies Army (Department of the Army)	$600,540	0.1%	Rank history: #58 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
60	Mipien SPA Through Impresa Pizzarotti & C. S.P.A. Top agencies Navy (Department of the Navy)	$599,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	Condortech Services, Inc. Top agencies DMA (Defense Media Activity) Navy (Department of the Navy) USAF (Department of the Air Force)	$573,220	0.1%	Rank history: #76 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 45 since FY2022.
62	Waldrop Construction Inc Top agencies USAF (Department of the Air Force)	$572,351	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Total-Evergreen JV LLC Top agencies Army (Department of the Army)	$570,792	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Cherokee Nation 2 awardees, including Cherokee Services Group LLC and Cherokee Federal Solutions, L.L.C. Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$548,103	0.1%	Rank history: #11 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 52 since FY2022.
65	Computer Information Systems Inc. Through Security Information Systems, LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$543,192	0.1%	Rank history: #33 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
66	Applied Management Corp Top agencies Navy (Department of the Navy)	$533,001	0.1%	Rank history: not on the FY2021 list, #53 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
67	Protech Security, Inc. Through Viking Security LLC Top agencies VA (Department of Veterans Affairs)	$528,984	0.1%	Rank history: not on the FY2021 list, #59 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
68	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$524,380	0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and not on the FY2025 list; new.
69	American Security Programs Inc 2 awardees, including Securadyne Systems Intermediate LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$512,508	0.1%	Rank history: #72 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
70	International Global Solution, Corp Top agencies Army (Department of the Army)	$482,423	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Thundercat Technology LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$476,887	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Corelogix Consulting Inc. Top agencies DHS (Department of Homeland Security)	$474,005	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #61 in FY2025; new.
73	Zeva Incorporated Top agencies VA (Department of Veterans Affairs)	$460,130	0.1%	Rank history: #53 in FY2021, #83 in FY2022, not on the FY2024 list and #49 in FY2025; up 10 since FY2022.
74	Cherokee Nation System Solutions LLC Top agencies Treasury (Department of the Treasury)	$460,060	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Apogee-Ssu Joint Venture LLC Top agencies DHS (Department of Homeland Security)	$458,723	0.1%	Rank history: #39 in FY2021, #34 in FY2022 and not on the FY2024–FY2025 lists; down 41 since FY2022.
76	Ariel Industries Inc Top agencies DTRA (Defense Threat Reduction Agency)	$450,766	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	Digital Air Control Inc. Top agencies Army (Department of the Army)	$427,790	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Warfeather, LLC Top agencies Army (Department of the Army)	$414,583	0.1%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and #27 in FY2025; new.
79	Martek Global Services, Inc. Top agencies Navy (Department of the Navy)	$399,560	0.1%	Rank history: not on the FY2021 list, #79 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
80	Oatridge Security Group, Inc. Top agencies Army (Department of the Army)	$394,993	0.1%	Rank history: #42 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; down 29 since FY2022.
81	Rock Creek Logistics, Technology, & Management Business Solutions LLC Top agencies Army (Department of the Army)	$382,592	0.1%	Rank history: #78 in FY2021, #89 in FY2022, #45 in FY2024 and #46 in FY2025; up 8 since FY2022.
82	Pass, L.l.c Top agencies VA (Department of Veterans Affairs)	$378,437	0.1%	Rank history: #89 in FY2021, #93 in FY2022, #74 in FY2024 and #65 in FY2025; up 11 since FY2022.
83	Government Marketing and Procurement, LLC Top agencies VA (Department of Veterans Affairs)	$375,917	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 46 since FY2022.
84	Excalibur Associates Inc. Top agencies Army (Department of the Army)	$370,011	0.1%	Rank history: #80 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 46 since FY2022.
85	Miami Nation Enterpeises Through Miami Tribal Systems Integrators, LLC Top agencies DHS (Department of Homeland Security)	$367,825	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Nasatka Barrier, Incorporated Top agencies AOUSC (Administrative Office of the U.S. Courts) USAF (Department of the Air Force)	$367,819	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Security Integration Group Inc. Top agencies VA (Department of Veterans Affairs)	$367,400	0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #82 in FY2024 and #73 in FY2025; down 7 since FY2022.
88	Red Heritage Media LLC Top agencies DOE (Department of Energy)	$366,621	0.1%	Rank history: #45 in FY2021, #88 in FY2022, #86 in FY2024 and #69 in FY2025; unchanged since FY2022.
89	Smartnet Inc. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force)	$357,313	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Astrophysics Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) USAF (Department of the Air Force)	$330,134	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 63 since FY2022.
91	Evigilant.com, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) CNCS (Corporation for National and Community Service) EPA (Environmental Protection Agency)	$321,885	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 30 since FY2022.
92	Electronic Specialty Co Top agencies VA (Department of Veterans Affairs)	$309,240	<0.1%	Rank history: #59 in FY2021, #71 in FY2022, #73 in FY2024 and #54 in FY2025; down 21 since FY2022.
93	Metro Surveillance Systems, Inc. Top agencies Army (Department of the Army)	$307,126	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and not on the FY2025 list; up 107 since FY2022.
94	Concord Crossroads LLC Top agencies Army (Department of the Army)	$300,462	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 32 since FY2022.
95	VT Milcom Inc. Top agencies Navy (Department of the Navy)	$289,972	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Qcm, Inc. Top agencies Army (Department of the Army)	$285,544	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 146 since FY2022.
97	Cahoon & Associates LLC Top agencies VA (Department of Veterans Affairs)	$280,590	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #65 in FY2024 and not on the FY2025 list; down 37 since FY2022.
98	Kastle Systems LLC Top agencies CFTC (Commodity Futures Trading Commission) Navy (Department of the Navy) OSC (US Office of Special Counsel)	$273,075	<0.1%	Rank history: #81 in FY2021, #91 in FY2022, #87 in FY2024 and #72 in FY2025; down 7 since FY2022.
99	Cam-Dex Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$271,138	<0.1%	Rank history: #61 in FY2021, not on the FY2022 list, #68 in FY2024 and #67 in FY2025; up 15 since FY2022.
100	Comco, Inc. Top agencies Army (Department of the Army)	$270,372	<0.1%	Rank history: #92 in FY2021, #99 in FY2022, #97 in FY2024 and not on the FY2025 list; down 1 since FY2022.

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100 of 477 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 $702 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 FY2023?

1. Techflow, Inc. ($214M), 2. Leidos Holdings, Inc. ($197M), 3. M.c. Dean, Inc. ($37M), 4. General Dynamics Corporation ($25.5M), 5. Science Applications International Corporation ($23.6M), 6. Omniplex World Services Corp ($17.7M), 7. Sev1Tech, LLC ($16.8M), 8. Kbr, Inc. ($14.5M), 9. Sentrillion Corporation ($8.37M), 10. Cynergy Professional Systems LLC ($6.9M).

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