Top 100 Contractors in PSC 6350: Miscellaneous Alarm, Signal, and Security Detection Systems, Aug 2025–Jul 2026

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	22.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2	Analogic Corp 2 awardees Top agencies DHS (Department of Homeland Security)	$131,081,064	13.8%	Rank history: #1 in FY2021, #1 in FY2022, #9 in FY2023, #4 in FY2024 and #4 in FY2025; up 1 since Aug 2024–Jul 2025.
3	M.c. Dean, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOT (Department of Transportation) USAF (Department of the Air Force)	$120,438,513	12.7%	Rank history: #8 in FY2021, #4 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 2 since Aug 2024–Jul 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)	$54,932,489	5.8%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #2 in FY2025; up 4 since Aug 2024–Jul 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 Aug 2024–Jul 2025.
6	Teledyne Technologies Incorporated Through Teledyne Flir Defense, LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$29,586,007	3.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7	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)	$29,096,313	3.1%	Rank history: #3 in FY2021, #18 in FY2022, #8 in FY2023, not on the FY2024 list and #7 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8	Parsons Corporation 3 awardees, including Xator LLC, Williams Electric Co Inc. and Parsons Government Services International Inc. Top agencies USAF (Department of the Air Force) AOUSC (Administrative Office of the U.S. Courts) DTRA (Defense Threat Reduction Agency)	$26,142,877	2.8%	Rank history: #24 in FY2021, #24 in FY2022, #42 in FY2023, #9 in FY2024 and #5 in FY2025; down 6 since Aug 2024–Jul 2025.
9	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$24,780,184	2.6%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, #5 in FY2024 and #3 in FY2025; down 3 since Aug 2024–Jul 2025.
10	Rohde & Schwarz GMBH & Co. Kommanditgesellschaft Through Rohde & Schwarz Usa, Inc. Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$23,365,419	2.5%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	Johnson Controls Federal Systems, LLC 2 awardees, including Johnson Controls Building Automation Systems, LLC and Johnson Controls Navy Systems, LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) DHS (Department of Homeland Security)	$17,330,861	1.8%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Acqcentric, Inc. Top agencies DOS (Department of State)	$16,321,350	1.7%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	CACI International Inc. 2 awardees, including Caci, Inc. - Federal Top agencies USAF (Department of the Air Force)	$14,080,702	1.5%	Rank history: #10 in FY2021, #50 in FY2022, #13 in FY2023, #14 in FY2024 and #9 in FY2025; down 4 since Aug 2024–Jul 2025.
14	Safran Power USA LLC 2 awardees, including Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$13,607,358	1.4%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) NARA (National Archives and Records Administration)	$11,528,612	1.2%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #30 in FY2025; up 5 since Aug 2024–Jul 2025.
16	Minuteman Security Solutions LLC 2 awardees Top agencies Army (Department of the Army)	$9,813,189	1.0%	Rank history: #4 in FY2021, #5 in FY2022, #6 in FY2023, #6 in FY2024 and #10 in FY2025; down 5 since Aug 2024–Jul 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 #16 in FY2025; up 34 since Aug 2024–Jul 2025.
18	Integrated Security Technologies, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) DOJ (Department of Justice)	$7,561,896	0.8%	Rank history: not on the FY2021 list, #96 in FY2022, #67 in FY2023, #34 in FY2024 and #20 in FY2025; up 14 since Aug 2024–Jul 2025.
19	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)	$6,650,052	0.7%	Rank history: #9 in FY2021, #8 in FY2022, #7 in FY2023, #13 in FY2024 and #14 in FY2025; down 6 since Aug 2024–Jul 2025.
20	Signet Technologies, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) Peace Corps USAF (Department of the Air Force)	$5,487,398	0.6%	Rank history: #12 in FY2021, #9 in FY2022, #18 in FY2023, #20 in FY2024 and #25 in FY2025; down 2 since Aug 2024–Jul 2025.
21	Parker-Hannifin Corporation 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 Aug 2024–Jul 2025.
22	Scdatacom LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$4,917,265	0.5%	Rank history: #79 in FY2021, #28 in FY2022, #37 in FY2023, #12 in FY2024 and #11 in FY2025; down 12 since Aug 2024–Jul 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)	$4,456,457	0.5%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #18 in FY2025; down 6 since Aug 2024–Jul 2025.
24	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$4,360,985	0.5%	Rank history: #57 in FY2021, #36 in FY2022, #28 in FY2023, #42 in FY2024 and #24 in FY2025; up 18 since Aug 2024–Jul 2025.
25	Ldia Holdings, LLC Top agencies USAF (Department of the Air Force)	$4,343,402	0.5%	Rank history: not on the FY2021 list, #40 in FY2022, #71 in FY2023, #36 in FY2024 and #21 in FY2025; up 9 since Aug 2024–Jul 2025.
26	Anduril Industries Inc. Top agencies USAF (Department of the Air Force)	$3,837,952	0.4%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, #19 in FY2024 and #37 in FY2025; down 10 since Aug 2024–Jul 2025.
27	Surescan Corporation 2 awardees Top agencies DHS (Department of Homeland Security)	$3,519,105	0.4%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and not on the FY2025 list; up 30 since Aug 2024–Jul 2025.
28	Versar, Inc. Through Versar Security Systems, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DOT (Department of Transportation) DOJ (Department of Justice)	$3,342,058	0.4%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29	Heritage Interiors LLC Top agencies DOT (Department of Transportation)	$2,940,542	0.3%	Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and #32 in FY2025; up 1 since Aug 2024–Jul 2025.
30	Securityhunter, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) SSA (Social Security Administration) USAF (Department of the Air Force)	$2,854,400	0.3%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; up 112 since Aug 2024–Jul 2025.
31	Triumph Group Inc. Through Triumph Actuation Systems - Connecticut, LLC Top agencies DLA (Defense Logistics Agency)	$2,853,450	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32	Indyne, Inc. Top agencies USAF (Department of the Air Force)	$2,736,719	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	Ceia USA Ltd Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Navy (Department of the Navy)	$2,697,868	0.3%	Rank history: #30 in FY2021, #31 in FY2022, #22 in FY2023, #24 in FY2024 and #26 in FY2025; down 4 since Aug 2024–Jul 2025.
34	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force)	$2,392,058	0.3%	Rank history: #65 in FY2021, #46 in FY2022, #60 in FY2023, #62 in FY2024 and #28 in FY2025; down 3 since Aug 2024–Jul 2025.
35	JRC Integrated Systems, LLC Top agencies Navy (Department of the Navy)	$2,353,083	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	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 31 since Aug 2024–Jul 2025.
37	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$2,252,952	0.2%	Rank history: #16 in FY2021, #17 in FY2022, #17 in FY2023, #44 in FY2024 and #19 in FY2025; down 12 since Aug 2024–Jul 2025.
38	Intellimar Inc. 2 awardees, including Concentric Security LLC Top agencies DHS (Department of Homeland Security) EPA (Environmental Protection Agency) DOT (Department of Transportation)	$2,073,426	0.2%	Rank history: not on the FY2021 list, #35 in FY2022, #50 in FY2023, #53 in FY2024 and #36 in FY2025; up 1 since Aug 2024–Jul 2025.
39	Geospace Technologies Corporation Through Quantum Technology Sciences, Inc. Top agencies DHS (Department of Homeland Security)	$1,671,922	0.2%	Rank history: #68 in FY2021, #72 in FY2022, #69 in FY2023, #47 in FY2024 and #35 in FY2025; up 76 since Aug 2024–Jul 2025.
40	Nasatka Barrier, Incorporated Top agencies AOUSC (Administrative Office of the U.S. Courts) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$1,601,536	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41	Cynergy Professional Systems LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,556,818	0.2%	Rank history: #41 in FY2021, #10 in FY2022, #35 in FY2023, #35 in FY2024 and #42 in FY2025; up 6 since Aug 2024–Jul 2025.
42	General Dynamics Corporation 3 awardees, including General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$1,401,398	0.1%	Rank history: #19 in FY2021, #11 in FY2022, #12 in FY2023, #27 in FY2024 and #22 in FY2025; down 15 since Aug 2024–Jul 2025.
43	Ukpeagvik Inupiat Corporation Through Bowhead Protection and Security Services, LLC Top agencies DHS (Department of Homeland Security)	$1,364,525	0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	Axon Enterprise, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$1,333,320	0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #39 in FY2025; down 1 since Aug 2024–Jul 2025.
45	Hose-Mccann Telephone Co, Inc. Top agencies DLA (Defense Logistics Agency)	$1,262,138	0.1%	Rank history: #88 in FY2021, #69 in FY2022, #68 in FY2023, #58 in FY2024 and #54 in FY2025; up 16 since Aug 2024–Jul 2025.
46	Mirion Technologies (Canberra), Inc. Top agencies DHS (Department of Homeland Security)	$1,241,602	0.1%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and not on the FY2025 list; up 36 since Aug 2024–Jul 2025.
47	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, #63 in FY2024 and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48	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–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$1,135,877	0.1%	Rank history: not on the FY2021–FY2025 lists; up 81 since Aug 2024–Jul 2025.
50	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 Aug 2024–Jul 2025.
51	Low Voltage Wiring Ltd Top agencies USAF (Department of the Air Force)	$1,072,546	0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and not on the FY2024–FY2025 lists; up 90 since Aug 2024–Jul 2025.
52	Flex Force Enterprises, LLC 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 Aug 2024–Jul 2025.
53	Thermo Fisher Scientific Inc. Through Thermo Eberline LLC Top agencies DHS (Department of Homeland Security)	$960,900	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54	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, #66 in FY2022, not on the FY2023–FY2024 lists and #45 in FY2025; up 47 since Aug 2024–Jul 2025.
55	TRU Vantage Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$825,229	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Evigilant.com, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts)	$752,574	0.1%	Rank history: #7 in FY2021, #2 in FY2022, #3 in FY2023, #8 in FY2024 and #27 in FY2025; down 41 since Aug 2024–Jul 2025.
57	Mountain Horse LLC Top agencies Army (Department of the Army)	$715,352	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; new, not ranked in Aug 2024–Jul 2025.
58	Amag Technology, Inc. Top agencies Navy (Department of the Navy)	$694,150	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 142 since Aug 2024–Jul 2025.
59	Soundthinking, Inc. Top agencies DHS (Department of Homeland Security)	$679,893	0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Airborne Outfitters LLC Top agencies DLA (Defense Logistics Agency)	$637,388	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023, not on the FY2024 list and #59 in FY2025; up 9 since Aug 2024–Jul 2025.
61	Polimaster Inc. Top agencies DHS (Department of Homeland Security)	$609,880	0.1%	Rank history: not on the FY2021–FY2025 lists; up 132 since Aug 2024–Jul 2025.
62	Digis Corporation Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$600,587	0.1%	Rank history: not on the FY2021–FY2025 lists; up 323 since Aug 2024–Jul 2025.
63	G & H Aerospace Inc. Top agencies DLA (Defense Logistics Agency)	$600,125	0.1%	Rank history: not on the FY2021 list, #63 in FY2022, not on the FY2023–FY2024 lists and #46 in FY2025; down 10 since Aug 2024–Jul 2025.
64	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 Aug 2024–Jul 2025.
65	L3Harris Technologies, Inc. 3 awardees, including L3Harris Maritime Services Inc. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy)	$565,423	0.1%	Rank history: not on the FY2021 list, #27 in FY2022, not on the FY2023 list, #50 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
66	Federal Resources Supply Company, LLC Top agencies DOS (Department of State)	$514,481	0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #60 in FY2025; up 8 since Aug 2024–Jul 2025.
67	BMC Software Inc. Through Leslie Controls, Inc. Top agencies DLA (Defense Logistics Agency)	$502,515	0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; down 11 since Aug 2024–Jul 2025.
68	Honeywell International Inc. 3 awardees, including Vindicator Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$500,990	0.1%	Rank history: #50 in FY2021, #29 in FY2022, #26 in FY2023, not on the FY2024 list and #41 in FY2025; up 10 since Aug 2024–Jul 2025.
69	Active Security Consulting LLC Top agencies DHS (Department of Homeland Security)	$499,049	0.1%	Rank history: not on the FY2021–FY2025 lists; up 85 since Aug 2024–Jul 2025.
70	Riegl Usa, Inc. Top agencies DOT (Department of Transportation)	$493,580	0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 40 since Aug 2024–Jul 2025.
71	Dynalec Corporation Top agencies DLA (Defense Logistics Agency)	$481,241	0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; down 16 since Aug 2024–Jul 2025.
72	RTX Corporation 2 awardees, including Kidde Technologies, Inc. and Raytheon Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DOT (Department of Transportation)	$474,223	<0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, #39 in FY2024 and #44 in FY2025; down 27 since Aug 2024–Jul 2025.
73	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 Aug 2024–Jul 2025.
74	Scott Total Security Limited Top agencies USAF (Department of the Air Force)	$459,748	<0.1%	Rank history: #46 in FY2021, #94 in FY2022, not on the FY2023–FY2024 lists and #50 in FY2025; down 11 since Aug 2024–Jul 2025.
75	Clear Align LLC Top agencies USAF (Department of the Air Force)	$455,322	<0.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; down 56 since Aug 2024–Jul 2025.
76	Aantilia LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOS (Department of State)	$448,290	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2023–FY2025 lists; up 29 since Aug 2024–Jul 2025.
77	Cam-Dex Corporation Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$432,363	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, not on the FY2024 list and #66 in FY2025; up 30 since Aug 2024–Jul 2025.
78	Software Information Resource Corp Top agencies Army (Department of the Army)	$420,120	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 227 since Aug 2024–Jul 2025.
79	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$410,114	<0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
80	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$398,124	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 110 since Aug 2024–Jul 2025.
81	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 Aug 2024–Jul 2025.
82	Kingfisher Co., Inc. Top agencies Navy (Department of the Navy)	$366,898	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$362,285	<0.1%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #74 in FY2025; down 59 since Aug 2024–Jul 2025.
84	Point Security Inc Top agencies DOJ (Department of Justice) DOT (Department of Transportation) USAF (Department of the Air Force)	$359,815	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 348 since Aug 2024–Jul 2025.
85	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: #95 in FY2021, not on the FY2022 list, #55 in FY2023, not on the FY2024 list and #80 in FY2025; up 349 since Aug 2024–Jul 2025.
86	Motorola Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$357,309	<0.1%	Rank history: #80 in FY2021, not on the FY2022–FY2024 lists and #72 in FY2025; new, not ranked in Aug 2024–Jul 2025.
87	Digi Security Systems, LLC Top agencies USAF (Department of the Air Force)	$352,778	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 115 since Aug 2024–Jul 2025.
88	Kidde Technologies, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$348,546	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Aug 2024–Jul 2025.
89	California Marine Supply Inc. Top agencies DLA (Defense Logistics Agency)	$337,098	<0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023, #56 in FY2024 and not on the FY2025 list; up 31 since Aug 2024–Jul 2025.
90	Blue Halo Corp Top agencies DOJ (Department of Justice)	$332,150	<0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
91	Marine Electric Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$319,057	<0.1%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list, #70 in FY2024 and #64 in FY2025; down 23 since Aug 2024–Jul 2025.
92	E.norman Security Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$312,360	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Inter-Pacific Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$304,436	<0.1%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and not on the FY2025 list; up 16 since Aug 2024–Jul 2025.
94	J2 Company LLC Top agencies AOUSC (Administrative Office of the U.S. Courts)	$300,325	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	Digitronics, Inc. Top agencies DCMA (Defense Contract Management Agency) Treasury (Department of the Treasury) Army (Department of the Army)	$299,240	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Adjoiner Corporation Top agencies USAF (Department of the Air Force)	$296,603	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
97	Becklar LLC Top agencies VA (Department of Veterans Affairs)	$295,620	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Cowboy Concealments LLC Top agencies DOJ (Department of Justice)	$285,875	<0.1%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and not on the FY2025 list; up 19 since Aug 2024–Jul 2025.
99	Kastle Systems LLC Top agencies Treasury (Department of the Treasury) FEC (Federal Election Commission) DOJ (Department of Justice)	$282,701	<0.1%	Rank history: #33 in FY2021, #51 in FY2022, #54 in FY2023, #51 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
100	Xenturis LLC Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) Navy (Department of the Navy)	$268,733	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.

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 $950 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.

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