Top 100 Contractors in PSC 63: Alarm, Signal, Security Detection, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC 63: Alarm, Signal, Security Detection, 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 72% of PSC 63 contract dollars from July 2025 through June 2026

Contract obligations: $901,671,336 Net of deobligations, by contracts coded PSC 63 or a code under it
Contractors: 624 Parent companies with an obligation
Largest contractor: Elbit Systems of America LLC $216 million, 23.1% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies DHS (Department of Homeland Security)	$215,851,904	23.1%	Rank history: not on the FY2021–FY2025 lists; up 185 since Jul 2024–Jun 2025.
2	Analogic Corp 2 awardees Top agencies DHS (Department of Homeland Security)	$136,425,501	14.6%	Rank history: #1 in FY2021, #1 in FY2022, #9 in FY2023, #4 in FY2024 and #4 in FY2025; up 5 since Jul 2024–Jun 2025.
3	M.c. Dean, Inc. Top agencies DOT (Department of Transportation) AOUSC (Administrative Office of the U.S. Courts) USAF (Department of the Air Force)	$98,312,748	10.5%	Rank history: #8 in FY2021, #4 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 1 since Jul 2024–Jun 2025.
4	Smiths Detection Inc. 2 awardees Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$54,311,706	5.8%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #2 in FY2025; down 3 since Jul 2024–Jun 2025.
5	Benchmark Electronics, Inc. Through Secure Communication Systems, Inc. Top agencies DHS (Department of Homeland Security)	$33,988,104	3.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
6	Teledyne Flir Defense, LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$29,586,007	3.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
7	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$29,397,114	3.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023, #5 in FY2024 and #3 in FY2025; down 4 since Jul 2024–Jun 2025.
8	Leidos Holdings, Inc. 2 awardees, including Leidos Security Detection & Automation, Inc. and Leidos, Inc. Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$28,407,940	3.0%	Rank history: #3 in FY2021, #18 in FY2022, #8 in FY2023, not on the FY2024 list and #7 in FY2025; new, not ranked in Jul 2024–Jun 2025.
9	Rohde & Schwarz GMBH & Co. KG Through Rohde & Schwarz Usa, Inc. Top agencies DHS (Department of Homeland Security)	$23,324,666	2.5%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; new, not ranked in Jul 2024–Jun 2025.
10	Parsons Corporation 3 awardees, including Xator LLC, Parsons Government Services International Inc. and Williams Electric Co Inc. Top agencies USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency) AOUSC (Administrative Office of the U.S. Courts)	$19,419,341	2.1%	Rank history: #25 in FY2021, #25 in FY2022, #45 in FY2023, #9 in FY2024 and #5 in FY2025; down 6 since Jul 2024–Jun 2025.
11	Acqcentric, Inc. Top agencies DOS (Department of State)	$15,678,281	1.7%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	Johnson Controls Building Automation Systems, LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) DHS (Department of Homeland Security)	$14,217,208	1.5%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #12 in FY2025; unchanged since Jul 2024–Jun 2025.
13	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$13,596,364	1.5%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #8 in FY2025; up 2 since Jul 2024–Jun 2025.
14	CACI International Inc. 2 awardees, including Caci, Inc. - Federal Top agencies USAF (Department of the Air Force)	$13,581,819	1.5%	Rank history: #10 in FY2021, #52 in FY2022, #13 in FY2023, #15 in FY2024 and #9 in FY2025; down 5 since Jul 2024–Jun 2025.
15	Minuteman Security Solutions LLC 2 awardees Top agencies Army (Department of the Army)	$11,542,013	1.2%	Rank history: #4 in FY2021, #5 in FY2022, #6 in FY2023, #6 in FY2024 and #10 in FY2025; down 1 since Jul 2024–Jun 2025.
16	Johnson Controls Security Solutions LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice) USAF (Department of the Air Force)	$8,665,442	0.9%	Rank history: #9 in FY2021, #8 in FY2022, #7 in FY2023, #14 in FY2024 and #17 in FY2025; up 3 since Jul 2024–Jun 2025.
17	Crosstek Solutions LLC Top agencies DHS (Department of Homeland Security)	$8,647,625	0.9%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; up 43 since Jul 2024–Jun 2025.
18	Integrated Security Technologies, Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$6,767,127	0.7%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, #40 in FY2024 and #25 in FY2025; up 25 since Jul 2024–Jun 2025.
19	Scdatacom LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$5,523,832	0.6%	Rank history: #86 in FY2021, #29 in FY2022, #40 in FY2023, #13 in FY2024 and #11 in FY2025; down 8 since Jul 2024–Jun 2025.
20	Nikira Labs Inc. Top agencies Navy (Department of the Navy)	$5,281,688	0.6%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; unchanged since Jul 2024–Jun 2025.
21	S3 Aerodefense LLC Top agencies DLA (Defense Logistics Agency)	$5,192,203	0.6%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; up 16 since Jul 2024–Jun 2025.
22	Meggitt Aerospace Limited Through Meggitt Safety Systems Inc. Top agencies DLA (Defense Logistics Agency)	$4,964,800	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
23	V2X, Inc. 2 awardees, including Advantor Systems II LLC and V2X Systems LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$4,657,080	0.5%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #22 in FY2025; down 2 since Jul 2024–Jun 2025.
24	Signet Technologies, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) Peace Corps USDA (Department of Agriculture)	$4,290,088	0.5%	Rank history: #12 in FY2021, #9 in FY2022, #20 in FY2023, #21 in FY2024 and #30 in FY2025; down 1 since Jul 2024–Jun 2025.
25	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,031,825	0.4%	Rank history: #60 in FY2021, #38 in FY2022, #31 in FY2023, #49 in FY2024 and #29 in FY2025; up 27 since Jul 2024–Jun 2025.
26	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$3,922,190	0.4%	Rank history: #17 in FY2021, #14 in FY2022, #16 in FY2023, #29 in FY2024 and #15 in FY2025; down 4 since Jul 2024–Jun 2025.
27	Securityhunter, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) SSA (Social Security Administration) USAF (Department of the Air Force)	$3,049,343	0.3%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
28	Anduril Industries Inc. Top agencies USAF (Department of the Air Force)	$2,939,500	0.3%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2023, #18 in FY2024 and #18 in FY2025; down 15 since Jul 2024–Jun 2025.
29	Ldia Holdings, LLC Top agencies USAF (Department of the Air Force)	$2,930,448	0.3%	Rank history: not on the FY2021 list, #42 in FY2022, #79 in FY2023, #42 in FY2024 and #26 in FY2025; up 9 since Jul 2024–Jun 2025.
30	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force)	$2,825,267	0.3%	Rank history: #70 in FY2021, #48 in FY2022, #66 in FY2023, #70 in FY2024 and #33 in FY2025; up 15 since Jul 2024–Jun 2025.
31	Indyne, Inc. Top agencies USAF (Department of the Air Force)	$2,736,719	0.3%	Rank history: not on the FY2021 list, #20 in FY2022, #35 in FY2023, #22 in FY2024 and #21 in FY2025; up 167 since Jul 2024–Jun 2025.
32	Ceia USA Ltd Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Navy (Department of the Navy)	$2,524,669	0.3%	Rank history: #32 in FY2021, #33 in FY2022, #25 in FY2023, #27 in FY2024 and #31 in FY2025; up 1 since Jul 2024–Jun 2025.
33	Pendar Technologies LLC Top agencies DHS (Department of Homeland Security)	$2,295,150	0.2%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and not on the FY2025 list; down 27 since Jul 2024–Jun 2025.
34	Ultra Electronics Ocean Systems Inc. Through DNE Technologies, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,929,806	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
35	Rapiscan Systems Inc Top agencies DOS (Department of State) AOUSC (Administrative Office of the U.S. Courts) NARA (National Archives and Records Administration)	$1,905,816	0.2%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #35 in FY2025; down 18 since Jul 2024–Jun 2025.
36	Dynalec Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,902,015	0.2%	Rank history: #54 in FY2021, #54 in FY2022, #47 in FY2023, #56 in FY2024 and #41 in FY2025; up 11 since Jul 2024–Jun 2025.
37	Heritage Interiors LLC Top agencies DOT (Department of Transportation)	$1,865,101	0.2%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #37 in FY2025; down 2 since Jul 2024–Jun 2025.
38	Versar Security Systems, LLC Top agencies DOT (Department of Transportation) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$1,635,825	0.2%	Rank history: not on the FY2021 list, #21 in FY2022, #27 in FY2023, #11 in FY2024 and #39 in FY2025; down 12 since Jul 2024–Jun 2025.
39	General Dynamics Corporation 3 awardees, including General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$1,495,096	0.2%	Rank history: #20 in FY2021, #11 in FY2022, #12 in FY2023, #32 in FY2024 and #27 in FY2025; down 11 since Jul 2024–Jun 2025.
40	RTX Corporation 6 awardees, including Kidde Technologies, Inc., Rosemount Aerospace Inc. and Rockwell Collins, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DOT (Department of Transportation)	$1,485,431	0.2%	Rank history: #16 in FY2021, #30 in FY2022, #21 in FY2023, #26 in FY2024 and #24 in FY2025; down 11 since Jul 2024–Jun 2025.
41	Hose-Mccann Telephone Co, Inc. Top agencies DLA (Defense Logistics Agency)	$1,309,338	0.1%	Rank history: #96 in FY2021, #73 in FY2022, #75 in FY2023, #66 in FY2024 and #60 in FY2025; up 31 since Jul 2024–Jun 2025.
42	Mirion Technologies (CAPINTEC) Inc. Through Mirion Technologies (Canberra), Inc. Top agencies DHS (Department of Homeland Security)	$1,241,602	0.1%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and not on the FY2025 list; up 53 since Jul 2024–Jun 2025.
43	Bowhead Protection & Security Services LLC Top agencies DHS (Department of Homeland Security)	$1,224,036	0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Jul 2024–Jun 2025.
44	M.d. Marine Electric, Ltd Top agencies DHS (Department of Homeland Security)	$1,223,328	0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #49 in FY2025; up 23 since Jul 2024–Jun 2025.
45	Siemens Industry Inc. Top agencies DOJ (Department of Justice) DOE (Department of Energy) USAF (Department of the Air Force)	$1,175,543	0.1%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #63 in FY2025; up 8 since Jul 2024–Jun 2025.
46	Axon Enterprise, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$1,158,437	0.1%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #48 in FY2025; up 9 since Jul 2024–Jun 2025.
47	GMS International Corporation Top agencies DLA (Defense Logistics Agency)	$1,148,611	0.1%	Rank history: #64 in FY2021, not on the FY2022 list, #76 in FY2023, not on the FY2024 list and #44 in FY2025; up 363 since Jul 2024–Jun 2025.
48	Samyak Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$1,091,680	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
49	Geospace Technologies Corporation Through Quantum Technology Sciences, Inc. Top agencies DHS (Department of Homeland Security)	$1,051,978	0.1%	Rank history: #74 in FY2021, #76 in FY2022, #77 in FY2023, #53 in FY2024 and #43 in FY2025; up 124 since Jul 2024–Jun 2025.
50	Flex Force Enterprises Inc. Top agencies USAF (Department of the Air Force)	$1,049,283	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	Cynergy Professional Systems LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,034,438	0.1%	Rank history: #44 in FY2021, #10 in FY2022, #38 in FY2023, #41 in FY2024 and #50 in FY2025; down 1 since Jul 2024–Jun 2025.
52	Low Voltage Wiring Ltd Top agencies USAF (Department of the Air Force)	$961,323	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and not on the FY2024–FY2025 lists; up 62 since Jul 2024–Jun 2025.
53	Thermo Eberline LLC Top agencies DHS (Department of Homeland Security)	$960,900	0.1%	Rank history: not on the FY2021–FY2025 lists; up 233 since Jul 2024–Jun 2025.
54	L3Harris Technologies, Inc. 4 awardees, including L3Harris Maritime Services Inc. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy)	$942,923	0.1%	Rank history: #35 in FY2021, #23 in FY2022, #17 in FY2023, #12 in FY2024 and #13 in FY2025; down 38 since Jul 2024–Jun 2025.
55	Sentrillion Corporation Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$887,272	0.1%	Rank history: not on the FY2021 list, #70 in FY2022, not on the FY2023–FY2024 lists and #52 in FY2025; up 60 since Jul 2024–Jun 2025.
56	Kidde Technologies, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$879,694	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
57	TRU Vantage Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$825,229	0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
58	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$815,881	0.1%	Rank history: not on the FY2021–FY2025 lists; up 122 since Jul 2024–Jun 2025.
59	General Electric Company 2 awardees, including GE Engine Services Distribution, L.L.C. Top agencies DLA (Defense Logistics Agency)	$751,868	0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 81 since Jul 2024–Jun 2025.
60	G & H Aerospace Inc. Top agencies DLA (Defense Logistics Agency)	$747,370	0.1%	Rank history: not on the FY2021 list, #67 in FY2022, not on the FY2023–FY2024 lists and #53 in FY2025; up 2 since Jul 2024–Jun 2025.
61	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$720,025	0.1%	Rank history: #82 in FY2021, #61 in FY2022, not on the FY2023 list, #48 in FY2024 and #42 in FY2025; down 7 since Jul 2024–Jun 2025.
62	Mountain Horse LLC Top agencies Army (Department of the Army)	$715,352	0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
63	The Boeing Company 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$711,816	0.1%	Rank history: not on the FY2021–FY2025 lists; up 53 since Jul 2024–Jun 2025.
64	Nasatka Barrier, Incorporated Top agencies AOUSC (Administrative Office of the U.S. Courts) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$700,639	0.1%	Rank history: not on the FY2021–FY2025 lists; up 211 since Jul 2024–Jun 2025.
65	Amag Technology, Inc. Top agencies Navy (Department of the Navy)	$694,150	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; up 165 since Jul 2024–Jun 2025.
66	International Global Solution, Corp Top agencies Army (Department of the Army)	$676,897	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
67	Vindicator Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$675,534	0.1%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #62 in FY2025; up 2 since Jul 2024–Jun 2025.
68	AAR Government Services Inc. Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$649,764	0.1%	Rank history: not on the FY2021–FY2025 lists; up 148 since Jul 2024–Jun 2025.
69	Black River Systems Company, Inc. Top agencies USAF (Department of the Air Force)	$649,348	0.1%	Rank history: not on the FY2021–FY2025 lists; up 177 since Jul 2024–Jun 2025.
70	Airborne Outfitters LLC Top agencies DLA (Defense Logistics Agency)	$637,388	0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; unchanged since Jul 2024–Jun 2025.
71	Aantilia LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Army (Department of the Army)	$635,198	0.1%	Rank history: not on the FY2021–FY2025 lists; up 23 since Jul 2024–Jun 2025.
72	Polimaster Inc. Top agencies DHS (Department of Homeland Security)	$609,880	0.1%	Rank history: not on the FY2021–FY2025 lists; up 152 since Jul 2024–Jun 2025.
73	TC Atlantic Group LLC Top agencies VA (Department of Veterans Affairs)	$570,100	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
74	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency)	$568,345	0.1%	Rank history: #63 in FY2021, #83 in FY2022, not on the FY2023 list, #65 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
75	Prosec Protection Systems Inc. Top agencies DHA (Defense Health Agency)	$534,063	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Jul 2024–Jun 2025.
76	American Indian Health & Services Corporation Through Leslie Controls, Inc. Top agencies DLA (Defense Logistics Agency)	$533,115	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; down 13 since Jul 2024–Jun 2025.
77	Cowboy Concealments LLC Top agencies DOJ (Department of Justice)	$529,235	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
78	Federal Resources Supply Company, LLC Top agencies DOS (Department of State)	$514,481	0.1%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #70 in FY2025; down 7 since Jul 2024–Jun 2025.
79	All.space Networks, Inc. Top agencies Army (Department of the Army)	$500,122	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Jul 2024–Jun 2025.
80	Riegl Usa, Inc. Top agencies DOT (Department of Transportation)	$493,580	0.1%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; up 45 since Jul 2024–Jun 2025.
81	Johnson Controls Inc 2 awardees, including Johnson Controls Fire Protection LP Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOJ (Department of Justice)	$487,509	0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 17 since Jul 2024–Jun 2025.
82	Homefront Security LLC Top agencies VA (Department of Veterans Affairs)	$471,154	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
83	Scott Total Security Limited Top agencies USAF (Department of the Air Force)	$459,748	<0.1%	Rank history: #48 in FY2021, not on the FY2022–FY2024 lists and #56 in FY2025; down 10 since Jul 2024–Jun 2025.
84	Clear Align LLC Top agencies USAF (Department of the Air Force)	$455,322	<0.1%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; down 60 since Jul 2024–Jun 2025.
85	Software Information Resource Corp Top agencies Army (Department of the Army) Navy (Department of the Navy)	$454,978	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
86	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$443,470	<0.1%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #45 in FY2025; down 52 since Jul 2024–Jun 2025.
87	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$410,114	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
88	D&D Ultimate Connection LLC Top agencies DHS (Department of Homeland Security)	$403,041	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
89	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$396,521	<0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023, #57 in FY2024 and not on the FY2025 list; down 13 since Jul 2024–Jun 2025.
90	Soundthinking, Inc. Top agencies DHS (Department of Homeland Security)	$395,057	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Jul 2024–Jun 2025.
91	Marine Electric Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$387,549	<0.1%	Rank history: #98 in FY2021, #84 in FY2022, not on the FY2023 list, #79 in FY2024 and #73 in FY2025; down 10 since Jul 2024–Jun 2025.
92	Midwest Security Services, Inc. Top agencies Army (Department of the Army)	$386,664	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Jul 2024–Jun 2025.
93	Livion Technology, LLC Top agencies DHA (Defense Health Agency)	$378,450	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	Kingfisher Co., Inc. Top agencies Navy (Department of the Navy)	$366,898	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$365,402	<0.1%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #89 in FY2025; down 68 since Jul 2024–Jun 2025.
96	AES Systems Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) DHS (Department of Homeland Security)	$357,813	<0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, not on the FY2024 list and #97 in FY2025; new, not ranked in Jul 2024–Jun 2025.
97	Motorola Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$357,309	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 387 since Jul 2024–Jun 2025.
98	Cam-Dex Corporation Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$342,232	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 34 since Jul 2024–Jun 2025.
99	California Marine Supply Inc. Top agencies DLA (Defense Logistics Agency)	$337,098	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #64 in FY2024 and not on the FY2025 list; up 31 since Jul 2024–Jun 2025.
100	Blue Halo Corp Top agencies DOJ (Department of Justice)	$332,150	<0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; new, not ranked in Jul 2024–Jun 2025.

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Rankings for the codes under PSC 63

Code	Net obligations	Largest contractor
6350 Miscellaneous Alarm, Signal, and Security Detection Systems	$873,970,307	Elbit Systems of America LLC
6340 Aircraft Alarm and Signal Systems	$16,689,193	S3 Aerodefense LLC
6320 Shipboard Alarm and Signals Systems	$8,827,704	Nikira Labs Inc.

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 $933 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 63 contractors in Jul 2025–Jun 2026?

1. Elbit Systems of America LLC ($216M), 2. Analogic Corp ($136M), 3. M.c. Dean, Inc. ($98.3M), 4. Smiths Detection Inc. ($54.3M), 5. Benchmark Electronics, Inc. ($34M), 6. Teledyne Flir Defense, LLC ($29.6M), 7. Evergreen Fire Alarms LLC ($29.4M), 8. Leidos Holdings, Inc. ($28.4M), 9. Rohde & Schwarz GMBH & Co. KG ($23.3M), 10. Parsons Corporation ($19.4M).

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