Top 100 Contractors in PSC 63: Alarm, Signal, Security Detection, FY2023

Name: Top 100 Contractors in PSC 63: Alarm, Signal, Security Detection, FY2023
Creator: GovTribe

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

The top 10 won 50% of FY2023 PSC 63 contract dollars

Contract obligations: $601,540,704 Net of deobligations, by contracts coded PSC 63 or a code under it
Contractors: 711 Parent companies with an obligation
Largest contractor: Smiths Group PLC $59.3 million, 9.6% 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	Smiths Group PLC 2 awardees, including Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$59,275,175	9.6%	Rank history: #2 in FY2021, #3 in FY2022, #24 in FY2024 and not on the FY2025 list; up 2 since FY2022.
2	M. C. Dean Inc. Through M.c. Dean, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOT (Department of Transportation) USAF (Department of the Air Force)	$45,283,746	7.4%	Rank history: #8 in FY2021, #4 in FY2022, #2 in FY2024 and #1 in FY2025; up 2 since FY2022.
3	Anduril Industries Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$35,723,128	5.8%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2024 and #18 in FY2025; new.
4	Evigilant.com, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) GSA (General Services Administration)	$32,190,547	5.2%	Rank history: #7 in FY2021, #2 in FY2022, #8 in FY2024 and #32 in FY2025; down 2 since FY2022.
5	Smiths Detection Inc Top agencies DHS (Department of Homeland Security)	$28,638,143	4.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
6	Minuteman Security Solutions LLC 2 awardees Top agencies Army (Department of the Army)	$25,580,403	4.2%	Rank history: #4 in FY2021, #5 in FY2022, #6 in FY2024 and #10 in FY2025; down 1 since FY2022.
7	Johnson Controls Security Solutions LLC 5 awardees, including Johnson Controls Inc., Johnson Controls Government Systems, LLC and Johnson Controls Fire Protection LP Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$22,389,040	3.6%	Rank history: #9 in FY2021, #8 in FY2022, #14 in FY2024 and #17 in FY2025; up 1 since FY2022.
8	Leidos Holdings, Inc. Through Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) SSA (Social Security Administration)	$19,936,817	3.2%	Rank history: #3 in FY2021, #18 in FY2022, not on the FY2024 list and #7 in FY2025; up 10 since FY2022.
9	Analogic Corporation Top agencies DHS (Department of Homeland Security)	$18,822,874	3.1%	Rank history: #1 in FY2021, #1 in FY2022, #4 in FY2024 and #4 in FY2025; down 8 since FY2022.
10	Xator LLC 2 awardees, including Incadence Strategic Solutions LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$17,831,207	2.9%	Rank history: not on the FY2021 list, #22 in FY2022, #25 in FY2024 and not on the FY2025 list; up 12 since FY2022.
11	Johnson Controls Industries 3 awardees, including Johnson Controls Building Automation Systems, LLC and Johnson Controls, Inc. Top agencies USAF (Department of the Air Force) SSA (Social Security Administration) VA (Department of Veterans Affairs)	$12,291,490	2.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	General Dynamics Corporation 4 awardees, including General Dynamics Mission Systems, Inc. and Electric Boat Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$12,167,585	2.0%	Rank history: #20 in FY2021, #11 in FY2022, #32 in FY2024 and #27 in FY2025; down 1 since FY2022.
13	CACI International Inc. 2 awardees, including Caci, Inc. - Federal Top agencies USAF (Department of the Air Force)	$12,066,792	2.0%	Rank history: #10 in FY2021, #52 in FY2022, #15 in FY2024 and #9 in FY2025; up 39 since FY2022.
14	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$11,452,673	1.9%	Rank history: #5 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
15	Crane Co 2 awardees, including Crane & Co., Inc. and Eldec Aerospace Corp Top agencies Treasury (Department of the Treasury) DLA (Defense Logistics Agency)	$10,816,030	1.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 213 since FY2022.
16	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$9,149,457	1.5%	Rank history: #17 in FY2021, #14 in FY2022, #29 in FY2024 and #15 in FY2025; down 2 since FY2022.
17	L3Harris Technologies, Inc. 3 awardees, including L3 Technologies, Inc. and L3Harris Maritime Services Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$9,133,705	1.5%	Rank history: #35 in FY2021, #23 in FY2022, #12 in FY2024 and #13 in FY2025; up 6 since FY2022.
18	Surescan Corporation Top agencies DHS (Department of Homeland Security)	$8,812,361	1.4%	Rank history: #40 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
19	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts)	$8,472,611	1.4%	Rank history: #14 in FY2021, #69 in FY2022, #93 in FY2024 and not on the FY2025 list; up 50 since FY2022.
20	Signet Technologies Inc. 3 awardees, including Convergint Technologies LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$6,147,361	1.0%	Rank history: #12 in FY2021, #9 in FY2022, #21 in FY2024 and #30 in FY2025; down 11 since FY2022.
21	RTX Corporation 7 awardees, including Kidde Technologies, Inc., Rosemount Aerospace Inc. and Hornet Acquisitionco, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DOT (Department of Transportation)	$6,125,269	1.0%	Rank history: #16 in FY2021, #30 in FY2022, #26 in FY2024 and #24 in FY2025; up 9 since FY2022.
22	Versar Inc. Through Versar Security Systems, LLC Top agencies DOT (Department of Transportation) AOUSC (Administrative Office of the U.S. Courts)	$6,055,341	1.0%	Rank history: #11 in FY2021, #13 in FY2022, #84 in FY2024 and not on the FY2025 list; down 9 since FY2022.
23	Seneca Global Services LLC Top agencies DOJ (Department of Justice)	$6,000,000	1.0%	Rank history: #18 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
24	Jacobs Engineering Group Inc. Through Ch2M Hill, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$5,744,184	0.9%	Rank history: not on the FY2021 list, #35 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
25	Ceia USA Ltd Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$5,611,642	0.9%	Rank history: #32 in FY2021, #33 in FY2022, #27 in FY2024 and #31 in FY2025; up 8 since FY2022.
26	OSI Systems Inc. Through Rapiscan Systems Inc. Top agencies DOJ (Department of Justice) DOS (Department of State) Smithsonian (Smithsonian Institution)	$5,450,239	0.9%	Rank history: #19 in FY2021, #6 in FY2022, #90 in FY2024 and not on the FY2025 list; down 20 since FY2022.
27	Versar Security Systems, LLC Top agencies DOT (Department of Transportation)	$4,994,074	0.8%	Rank history: not on the FY2021 list, #21 in FY2022, #11 in FY2024 and #39 in FY2025; down 6 since FY2022.
28	Vectrus Systems Corporation Through Advantor Systems II LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$4,559,318	0.7%	Rank history: #21 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
29	Honeywell International Inc. 8 awardees, including Vindicator Technologies, Inc. and Honeywell Analytics Inc. Top agencies MDA (DOD Missile Defense Agency) Army (Department of the Army) USAF (Department of the Air Force)	$4,538,587	0.7%	Rank history: #52 in FY2021, #31 in FY2022, #55 in FY2024 and #71 in FY2025; up 2 since FY2022.
30	Intertech Security Group LLC Through Intertech Security, LLC Top agencies VA (Department of Veterans Affairs)	$4,384,426	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$4,383,909	0.7%	Rank history: #60 in FY2021, #38 in FY2022, #49 in FY2024 and #29 in FY2025; up 7 since FY2022.
32	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOS (Department of State)	$4,234,594	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 107 since FY2022.
33	Advanced Scientific Concepts, LLC Top agencies Navy (Department of the Navy)	$3,812,407	0.6%	Rank history: #33 in FY2021, #19 in FY2022, #43 in FY2024 and #34 in FY2025; down 14 since FY2022.
34	National Security Technology Accelerator Inc. Top agencies Navy (Department of the Navy)	$3,797,696	0.6%	Rank history: not on the FY2021 list, #77 in FY2022 and not on the FY2024–FY2025 lists; up 43 since FY2022.
35	Indyne, Inc. Top agencies USAF (Department of the Air Force)	$3,790,656	0.6%	Rank history: not on the FY2021 list, #20 in FY2022, #22 in FY2024 and #21 in FY2025; down 15 since FY2022.
36	Savi Technology, Inc. Top agencies DLA (Defense Logistics Agency)	$3,107,243	0.5%	Rank history: #23 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
37	Culmen International, LLC Top agencies DOS (Department of State)	$2,782,764	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	Cynergy Professional Systems LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) NMB (National Mediation Board)	$2,750,509	0.4%	Rank history: #44 in FY2021, #10 in FY2022, #41 in FY2024 and #50 in FY2025; down 28 since FY2022.
39	Low Voltage Wiring Ltd Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$2,599,454	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Scdatacom LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOJ (Department of Justice)	$2,593,169	0.4%	Rank history: #86 in FY2021, #29 in FY2022, #13 in FY2024 and #11 in FY2025; down 11 since FY2022.
41	Rogue Industries LLC Top agencies Treasury (Department of the Treasury)	$2,480,113	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Digital Force Technologies, LLC Top agencies USAF (Department of the Air Force)	$2,190,000	0.4%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and not on the FY2025 list; new.
43	Mirion Technologies (CANBERRA) Inc. Top agencies DHS (Department of Homeland Security)	$2,184,000	0.4%	Rank history: #28 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
44	Communications Resource Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$2,128,879	0.3%	Rank history: #24 in FY2021, #63 in FY2022, #68 in FY2024 and not on the FY2025 list; up 19 since FY2022.
45	Parsons Corporation 2 awardees, including Williams Electric Co Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts)	$2,088,479	0.3%	Rank history: #25 in FY2021, #25 in FY2022, #9 in FY2024 and #5 in FY2025; down 20 since FY2022.
46	Corelogix Consulting Inc. Top agencies DHS (Department of Homeland Security)	$1,865,245	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	Dynalec Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,781,786	0.3%	Rank history: #54 in FY2021, #54 in FY2022, #56 in FY2024 and #41 in FY2025; up 7 since FY2022.
48	Kaiva Services, LLC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$1,593,161	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
49	L3HARRIS Aviation Products Inc Through L3 Technologies, Inc. Top agencies USAF (Department of the Air Force)	$1,578,030	0.3%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and not on the FY2025 list; new.
50	Symetrica Inc Top agencies DHS (Department of Homeland Security)	$1,533,192	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	MJL Enterprises LLC Top agencies Army (Department of the Army)	$1,514,705	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Supply King Usa, LLC Top agencies DOJ (Department of Justice)	$1,499,618	0.2%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and not on the FY2025 list; up 426 since FY2022.
53	RB Allen Co Inc. Top agencies Navy (Department of the Navy)	$1,494,130	0.2%	Rank history: #45 in FY2021, #82 in FY2022 and not on the FY2024–FY2025 lists; up 29 since FY2022.
54	Intellimar Inc. 2 awardees, including Concentric Security LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) National Gallery of Art	$1,491,776	0.2%	Rank history: not on the FY2021 list, #37 in FY2022, #60 in FY2024 and #46 in FY2025; down 17 since FY2022.
55	Shofar Communications LLC Top agencies USAF (Department of the Air Force)	$1,400,452	0.2%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2024 and #95 in FY2025; new.
56	Superior Structures LLC Top agencies VA (Department of Veterans Affairs)	$1,344,189	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Blue Nose It Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$1,304,931	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 355 since FY2022.
58	Kastle Systems LLC Top agencies SEC (Securities and Exchange Commission) FEC (Federal Election Commission) DOJ (Department of Justice)	$1,291,406	0.2%	Rank history: #36 in FY2021, #53 in FY2022, #58 in FY2024 and not on the FY2025 list; down 5 since FY2022.
59	Transdigm Group Incorporated 3 awardees, including Symetrics Industries, LLC, Avionic Instruments LLC and Transicoil LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$1,272,811	0.2%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
60	AES Systems Inc. Top agencies GSA (General Services Administration) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$1,225,984	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #97 in FY2025; up 63 since FY2022.
61	HQE Systems, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$1,212,782	0.2%	Rank history: #59 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
62	Powertronic Systems Florida Inc. Top agencies Navy (Department of the Navy)	$1,124,671	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 79 since FY2022.
63	Warfeather, LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Army (Department of the Army)	$1,064,626	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 149 since FY2022.
64	Global Grab Technologies, Inc. Top agencies DHS (Department of Homeland Security)	$1,053,765	0.2%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2024 and not on the FY2025 list; up 323 since FY2022.
65	Badger Truck and Automotive Group, Inc. Top agencies DLA (Defense Logistics Agency)	$1,027,482	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force)	$975,082	0.2%	Rank history: #70 in FY2021, #48 in FY2022, #70 in FY2024 and #33 in FY2025; down 18 since FY2022.
67	California Marine Supply Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$953,535	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and not on the FY2025 list; up 41 since FY2022.
68	Delta Run Security JV LLC Top agencies Army (Department of the Army) DOJ (Department of Justice)	$804,197	0.1%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
69	Hear Central, LLC Top agencies VA (Department of Veterans Affairs)	$787,080	0.1%	Rank history: not on the FY2021 list, #93 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
70	Stanley Black & Decker, Inc. 3 awardees, including Securitas Technology Corporation, Totalkare of America Inc. and Allegion Access Technologies LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$707,114	0.1%	Rank history: #90 in FY2021, #94 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
71	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$699,574	0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and not on the FY2025 list; up 239 since FY2022.
72	Evolv Technologies Inc. Top agencies Smithsonian (Smithsonian Institution) National Gallery of Art	$694,230	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 116 since FY2022.
73	Facility Improvement Corporation Top agencies VA (Department of Veterans Affairs)	$692,892	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Integrated Security Technologies, Inc. Top agencies DOJ (Department of Justice)	$677,477	0.1%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2024 and #25 in FY2025; up 29 since FY2022.
75	Hose-Mccann Telephone Co, Inc. Top agencies DLA (Defense Logistics Agency)	$673,035	0.1%	Rank history: #96 in FY2021, #73 in FY2022, #66 in FY2024 and #60 in FY2025; down 2 since FY2022.
76	GMS International Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$657,108	0.1%	Rank history: #64 in FY2021, not on the FY2022 list, not on the FY2024 list and #44 in FY2025; up 110 since FY2022.
77	Geospace Technologies Corporation Through Quantum Technology Sciences, Inc. Top agencies DHS (Department of Homeland Security)	$656,823	0.1%	Rank history: #74 in FY2021, #76 in FY2022, #53 in FY2024 and #43 in FY2025; down 1 since FY2022.
78	GMC TEK LLC Top agencies VA (Department of Veterans Affairs)	$653,355	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
79	Ldia Holdings, LLC Top agencies USAF (Department of the Air Force)	$636,782	0.1%	Rank history: not on the FY2021 list, #42 in FY2022, #42 in FY2024 and #26 in FY2025; down 37 since FY2022.
80	Sanford Federal, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$634,297	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	Siemens Aktiengesellschaft Through Siemens Industry Inc. Top agencies DOE (Department of Energy) FTC (Federal Trade Commission) DOT (Department of Transportation)	$588,284	0.1%	Rank history: #42 in FY2021, #17 in FY2022 and not on the FY2024–FY2025 lists; down 64 since FY2022.
82	Abba Technologies, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$579,426	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 84 since FY2022.
83	Seneca Strategic Partners, LLC Top agencies DOJ (Department of Justice)	$577,859	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Polimaster Holdings Corporation Through Polimaster Inc. Top agencies DHS (Department of Homeland Security)	$569,916	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	JE Systems Inc. Top agencies Army (Department of the Army)	$555,902	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Gans & Pugh Associates, Inc. Top agencies DHS (Department of Homeland Security)	$549,236	0.1%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and not on the FY2025 list; up 282 since FY2022.
87	PPD Development LP 2 awardees, including Thermo Eberline LLC and Thermo Scientific Portable Analytical Instruments Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$547,794	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Astrophysics Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$537,232	0.1%	Rank history: not on the FY2021 list, #45 in FY2022, #92 in FY2024 and not on the FY2025 list; down 43 since FY2022.
89	Pyrocom Systems Inc. Top agencies VA (Department of Veterans Affairs) IBWC (International Boundary and Water Commission U.S.-Mexico)	$518,285	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 174 since FY2022.
90	Senstar Technologies Ltd Through Senstar Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army)	$516,572	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Phds Co. Top agencies DTRA (Defense Threat Reduction Agency)	$500,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Silvus Technologies Inc. Through Crfs, Inc. Top agencies USAF (Department of the Air Force)	$487,364	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	TRU Vantage Solutions, Inc. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force)	$486,762	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Tri-Tronics Ltd. Top agencies DOJ (Department of Justice)	$484,552	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 95 since FY2022.
95	Trilogy Secured Services, L.l.c Top agencies DOJ (Department of Justice)	$480,802	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 29 since FY2022.
96	Evergreen Fire Alarms LLC Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) USAF (Department of the Air Force)	$470,887	0.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and #3 in FY2025; up 82 since FY2022.
97	Virsig, LLC Top agencies VA (Department of Veterans Affairs)	$459,656	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Delta Scientific Corporation Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) SSA (Social Security Administration)	$458,981	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 347 since FY2022.
99	Leonardo S.p.A. Through DRS Training & Control Systems, LLC Top agencies Navy (Department of the Navy)	$450,677	0.1%	Rank history: #66 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
100	Genetec Inc Top agencies FCC (Federal Communications Commission) DOJ (Department of Justice)	$448,386	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 74 since FY2022.

Show 75 more

100 of 711 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 63

Code	Net obligations	Largest contractor
6350 Miscellaneous Alarm, Signal, and Security Detection Systems	$556,794,641	Smiths Group PLC
6340 Aircraft Alarm and Signal Systems	$27,900,561	L3Harris Technologies, Inc.
6310 Traffic and Transit Signal Systems	$13,775,782	Crane Co
6320 Shipboard Alarm and Signals Systems	$2,931,787	Dynalec Corporation

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 $615 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 63 contractors in FY2023?

1. Smiths Group PLC ($59.3M), 2. M. C. Dean Inc. ($45.3M), 3. Anduril Industries Inc. ($35.7M), 4. Evigilant.com, LLC ($32.2M), 5. Smiths Detection Inc ($28.6M), 6. Minuteman Security Solutions LLC ($25.6M), 7. Johnson Controls Security Solutions LLC ($22.4M), 8. Leidos Holdings, Inc. ($19.9M), 9. Analogic Corporation ($18.8M), 10. Xator LLC ($17.8M).

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