Top 100 Contractors in NAICS 561612: Security Guards and Patrol Services, FY2023

Name: Top 100 Contractors in NAICS 561612: Security Guards and Patrol Services, FY2023
Creator: GovTribe

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

The top 10 won 48% of FY2023 NAICS 561612 contract dollars

Contract obligations: $5,625,037,446 Net of deobligations, by contracts coded NAICS 561612
Contractors: 568 Parent companies with an obligation
Largest contractor: Securitas AB $618 million, 10.4% 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	Securitas AB 3 awardees, including Paragon Systems Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) AOUSC (Administrative Office of the U.S. Courts)	$617,734,767	10.4%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2024 and not on the FY2025 list; up 1 since FY2022.
2	Triple Canopy Inc. 3 awardees, including Centerra Group, LLC and Academi Training Center LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DOE (Department of Energy) DHS (Department of Homeland Security)	$471,801,991	7.9%	Rank history: #1 in FY2021, #1 in FY2022, #6 in FY2024 and #3 in FY2025; down 1 since FY2022.
3	Omniplex World Services Corp Through Triple Canopy Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State) Army (Department of the Army)	$399,453,431	6.7%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2024 and not on the FY2025 list; new.
4	Metropolitan Security Services, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice) GSA (General Services Administration)	$257,999,121	4.3%	Rank history: #4 in FY2021, #5 in FY2022, #1 in FY2024 and #2 in FY2025; up 1 since FY2022.
5	The GEO Group, Inc. 3 awardees, including GEO Transport, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$248,101,376	4.2%	Rank history: #7 in FY2021, #4 in FY2022, #5 in FY2024 and #4 in FY2025; down 1 since FY2022.
6	Mvm, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$235,903,133	4.0%	Rank history: #10 in FY2021, #3 in FY2022, #7 in FY2024 and #8 in FY2025; down 3 since FY2022.
7	Corecivic, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$180,723,046	3.0%	Rank history: #9 in FY2021, #7 in FY2022, #8 in FY2024 and #5 in FY2025; unchanged since FY2022.
8	G4S Holding One Inc. 8 awardees, including G4S Secure Integration LLC, G4S Secure Solutions (USA) Inc. and G4S Peru S.a.c. Top agencies DOS (Department of State) DHS (Department of Homeland Security)	$163,633,899	2.8%	Rank history: #6 in FY2021, #8 in FY2022, #29 in FY2024 and not on the FY2025 list; unchanged since FY2022.
9	Inter-Con Security Systems, Inc. Top agencies DOS (Department of State) DOJ (Department of Justice) NARA (National Archives and Records Administration)	$157,505,744	2.6%	Rank history: #5 in FY2021, #9 in FY2022, #10 in FY2024 and #6 in FY2025; unchanged since FY2022.
10	Covenant Aviation Security LLC Top agencies DHS (Department of Homeland Security)	$134,211,436	2.3%	Rank history: #12 in FY2021, #11 in FY2022, #11 in FY2024 and #10 in FY2025; up 1 since FY2022.
11	Pond Security Service GMBH Top agencies Army (Department of the Army) DOS (Department of State) DODEA (Department of Defense Education Activity)	$131,924,312	2.2%	Rank history: #11 in FY2021, #10 in FY2022, #13 in FY2024 and #12 in FY2025; down 1 since FY2022.
12	The Chenega Corporation 3 awardees, including Chenega Global Protection, LLC and Chenega Analytic Business Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) Army (Department of the Army)	$109,832,489	1.8%	Rank history: #33 in FY2021, #23 in FY2022, #35 in FY2024 and not on the FY2025 list; up 11 since FY2022.
13	BC Partners LLP Through Gardaworld Federal Services LLC Top agencies DOS (Department of State) Navy (Department of the Navy)	$106,415,029	1.8%	Rank history: not on the FY2021 list, #40 in FY2022, #9 in FY2024 and #7 in FY2025; up 27 since FY2022.
14	Nana Regional Corporation Inc Through Akima Global Services, LLC Top agencies DHS (Department of Homeland Security)	$105,394,694	1.8%	Rank history: #13 in FY2021, #12 in FY2022, #22 in FY2024 and #21 in FY2025; down 2 since FY2022.
15	The Day & Zimmermann Group, Inc. Through SOC LLC Top agencies DOS (Department of State) DOE (Department of Energy)	$99,565,800	1.7%	Rank history: #3 in FY2021, #6 in FY2022, #66 in FY2024 and not on the FY2025 list; down 9 since FY2022.
16	Universal Protection GP, LLC 2 awardees, including Universal Protection Service, Limited Partnership and Universal Protection Service, LLC Top agencies DHS (Department of Homeland Security) Smithsonian (Smithsonian Institution) DOI (Department of the Interior)	$94,520,631	1.6%	Rank history: #24 in FY2021, #21 in FY2022, #25 in FY2024 and not on the FY2025 list; up 5 since FY2022.
17	Paragon Professional Services LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$81,603,436	1.4%	Rank history: not on the FY2021 list, #86 in FY2022, #17 in FY2024 and #16 in FY2025; up 69 since FY2022.
18	ISS Action Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) CFPB (Consumer Financial Protection Bureau)	$77,103,832	1.3%	Rank history: #23 in FY2021, #19 in FY2022, #23 in FY2024 and #40 in FY2025; up 1 since FY2022.
19	Vendtech-Sgi LLC Top agencies DHS (Department of Homeland Security)	$72,697,514	1.2%	Rank history: #15 in FY2021, #17 in FY2022, #18 in FY2024 and #20 in FY2025; down 2 since FY2022.
20	Diversified Protection Corp Top agencies DHS (Department of Homeland Security) DOL (Department of Labor) EPA (Environmental Protection Agency)	$64,188,297	1.1%	Rank history: #16 in FY2021, #16 in FY2022, #30 in FY2024 and #25 in FY2025; down 4 since FY2022.
21	Kerberos International Inc. 2 awardees, including Acadia Protective Services II, LLC Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) EPA (Environmental Protection Agency)	$55,302,497	0.9%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #13 in FY2025; up 137 since FY2022.
22	Chenega Infinity, LLC Top agencies DHS (Department of Homeland Security) MDA (DOD Missile Defense Agency) DARPA (Defense Advanced Research Projects Agency)	$54,796,814	0.9%	Rank history: #21 in FY2021, #18 in FY2022, #42 in FY2024 and #67 in FY2025; down 4 since FY2022.
23	EOD Technology Inc. Through Acuity - Janus Global, LLC Top agencies DOS (Department of State)	$53,934,320	0.9%	Rank history: #17 in FY2021, #15 in FY2022, #53 in FY2024 and not on the FY2025 list; down 8 since FY2022.
24	Ids International Government Services LLC 2 awardees Top agencies DOS (Department of State) NARA (National Archives and Records Administration)	$51,089,082	0.9%	Rank history: not on the FY2021 list, #22 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
25	S1S Alpha LLC Top agencies DOD (Department of Defense)	$47,858,984	0.8%	Rank history: not on the FY2021 list, #54 in FY2022, #38 in FY2024 and #46 in FY2025; up 29 since FY2022.
26	Management & Training Corporation Top agencies DHS (Department of Homeland Security)	$44,056,006	0.7%	Rank history: #29 in FY2021, #28 in FY2022, #28 in FY2024 and #26 in FY2025; up 2 since FY2022.
27	Golden Svcs, LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy) NASA (National Aeronautics and Space Administration)	$43,002,248	0.7%	Rank history: #14 in FY2021, #13 in FY2022, #36 in FY2024 and #34 in FY2025; down 14 since FY2022.
28	Aviation Security Management LLC Top agencies DHS (Department of Homeland Security)	$42,410,430	0.7%	Rank history: #34 in FY2021, #26 in FY2022, #47 in FY2024 and #45 in FY2025; down 2 since FY2022.
29	North American Security, Incorporated Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$39,210,108	0.7%	Rank history: #25 in FY2021, #29 in FY2022, #31 in FY2024 and #38 in FY2025; unchanged since FY2022.
30	Bradley Technologies Inc. Top agencies DHS (Department of Homeland Security) JFK (John F. Kennedy Center for the Performing Arts) CSOSA (Court Services and Offender Supervision Agency)	$39,177,149	0.7%	Rank history: #82 in FY2021, #74 in FY2022, #19 in FY2024 and #17 in FY2025; up 44 since FY2022.
31	Hana Industries, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOT (Department of Transportation)	$38,666,245	0.7%	Rank history: #30 in FY2021, #30 in FY2022, #37 in FY2024 and #30 in FY2025; down 1 since FY2022.
32	VMD Systems Integrators Inc Top agencies DHS (Department of Homeland Security)	$36,321,897	0.6%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2024 and #32 in FY2025; new.
33	Nve, Inc. Top agencies DOS (Department of State)	$35,690,346	0.6%	Rank history: #37 in FY2021, #24 in FY2022, #91 in FY2024 and #23 in FY2025; down 9 since FY2022.
34	Akima Infrastructure Protection LLC Top agencies DHS (Department of Homeland Security)	$34,175,525	0.6%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #9 in FY2025; up 113 since FY2022.
35	CDA Incorporated Top agencies DHS (Department of Homeland Security)	$32,687,457	0.5%	Rank history: #22 in FY2021, #25 in FY2022, #20 in FY2024 and #19 in FY2025; down 10 since FY2022.
36	Master Security Company LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$29,537,679	0.5%	Rank history: #36 in FY2021, #36 in FY2022, #43 in FY2024 and #83 in FY2025; unchanged since FY2022.
37	Excalibur Associates Inc. 3 awardees, including Galaxy Protection Management, LLC Top agencies USDA (Department of Agriculture) Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$27,638,063	0.5%	Rank history: #43 in FY2021, #39 in FY2022, #46 in FY2024 and #65 in FY2025; up 2 since FY2022.
38	Torres Advanced Enterprise Solutions LLC 2 awardees, including Continuity Global Solutions LLC and Torres-Arkhe Group LLC Top agencies DOS (Department of State) Army (Department of the Army) Navy (Department of the Navy)	$26,191,460	0.4%	Rank history: #49 in FY2021, #46 in FY2022, #50 in FY2024 and #35 in FY2025; up 8 since FY2022.
39	Bering Straits Native Corporation Through Bering Global Solutions, LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$23,640,993	0.4%	Rank history: #39 in FY2021, #37 in FY2022, #88 in FY2024 and not on the FY2025 list; down 2 since FY2022.
40	Redcon Solutions Group LLC Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$22,359,390	0.4%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and #74 in FY2025; up 62 since FY2022.
41	Akima Global Services, LLC Top agencies DHS (Department of Homeland Security)	$21,876,662	0.4%	Rank history: not on the FY2021 list, #32 in FY2022, #16 in FY2024 and #22 in FY2025; down 9 since FY2022.
42	KR Contracting Inc. Top agencies DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense) Treasury (Department of the Treasury)	$21,753,769	0.4%	Rank history: #31 in FY2021, #31 in FY2022, #58 in FY2024 and #80 in FY2025; down 11 since FY2022.
43	United Security Inc. Top agencies DOJ (Department of Justice)	$21,724,167	0.4%	Rank history: #48 in FY2021, #58 in FY2022, #49 in FY2024 and #50 in FY2025; up 15 since FY2022.
44	Spectrum Security Services, Inc. Top agencies DHS (Department of Homeland Security)	$21,464,850	0.4%	Rank history: #45 in FY2021, #42 in FY2022, #52 in FY2024 and #44 in FY2025; down 2 since FY2022.
45	Afognak Native Corporation 2 awardees, including Alutiiq Advanced Security Solutions LLC and Shields Point LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration)	$20,753,377	0.3%	Rank history: #18 in FY2021, #35 in FY2022, #67 in FY2024 and not on the FY2025 list; down 10 since FY2022.
46	Culpepper & Associates Security Services Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOT (Department of Transportation)	$19,693,642	0.3%	Rank history: #35 in FY2021, #41 in FY2022, #55 in FY2024 and #48 in FY2025; down 5 since FY2022.
47	Joeun System Corp. Top agencies Army (Department of the Army)	$18,718,247	0.3%	Rank history: not on the FY2021 list, #51 in FY2022, #57 in FY2024 and #49 in FY2025; up 4 since FY2022.
48	Patronus Systems Inc Top agencies DHS (Department of Homeland Security)	$18,661,706	0.3%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #42 in FY2025; new.
49	Kr-Mtac LLC Top agencies DHS (Department of Homeland Security)	$18,463,633	0.3%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and #31 in FY2025; new.
50	Securamerica, LLC Through American Security Programs Inc. Top agencies GAO (Government Accountability Office) NARA (National Archives and Records Administration) SEC (Securities and Exchange Commission)	$15,717,976	0.3%	Rank history: #26 in FY2021, #80 in FY2022, #72 in FY2024 and not on the FY2025 list; up 30 since FY2022.
51	The Cogar Group. Ltd. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$15,114,368	0.3%	Rank history: #58 in FY2021, #56 in FY2022, #69 in FY2024 and #55 in FY2025; up 5 since FY2022.
52	American Security Programs Inc Through Sos Security LLC Top agencies DOS (Department of State)	$15,069,474	0.3%	Rank history: #27 in FY2021, #14 in FY2022 and not on the FY2024–FY2025 lists; down 38 since FY2022.
53	The Whitestone Group, Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) DOE (Department of Energy)	$15,063,491	0.3%	Rank history: not on the FY2021 list, #45 in FY2022, #45 in FY2024 and #29 in FY2025; down 8 since FY2022.
54	Alante Security Group, Inc. Top agencies DHS (Department of Homeland Security)	$14,835,105	0.2%	Rank history: #51 in FY2021, #83 in FY2022, #60 in FY2024 and #59 in FY2025; up 29 since FY2022.
55	VXL Enterprises LLC Top agencies DOS (Department of State)	$14,743,430	0.2%	Rank history: #63 in FY2021, #43 in FY2022, #77 in FY2024 and #76 in FY2025; down 12 since FY2022.
56	I3 Pathfinder USA LLC Top agencies DOS (Department of State)	$14,600,000	0.2%	Rank history: #52 in FY2021, #55 in FY2022, #61 in FY2024 and #52 in FY2025; down 1 since FY2022.
57	Ahtna, Incorporated Through Ahtna Support & Training Services LLC Top agencies DHS (Department of Homeland Security)	$14,564,216	0.2%	Rank history: #32 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 30 since FY2022.
58	Trinity Technology Group, Inc. Top agencies DHS (Department of Homeland Security)	$13,911,069	0.2%	Rank history: #47 in FY2021, #53 in FY2022, #56 in FY2024 and #82 in FY2025; down 5 since FY2022.
59	Defense Consulting Services LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$13,665,968	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, #74 in FY2024 and #70 in FY2025; up 19 since FY2022.
60	Surveillance Security, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$13,414,617	0.2%	Rank history: #66 in FY2021, #64 in FY2022, #51 in FY2024 and #66 in FY2025; up 4 since FY2022.
61	Amentum Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$13,354,207	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Singularity Security Group LLC Top agencies Navy (Department of the Navy)	$12,964,955	0.2%	Rank history: #89 in FY2021, #59 in FY2022, #62 in FY2024 and #61 in FY2025; down 3 since FY2022.
63	Prosecure, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$12,770,923	0.2%	Rank history: #61 in FY2021, #60 in FY2022, #75 in FY2024 and #64 in FY2025; down 3 since FY2022.
64	Chenega Security International, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$12,655,032	0.2%	Rank history: #59 in FY2021, #50 in FY2022, #65 in FY2024 and #71 in FY2025; down 14 since FY2022.
65	First Coast Security Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$12,519,121	0.2%	Rank history: #86 in FY2021, #88 in FY2022 and not on the FY2024–FY2025 lists; up 23 since FY2022.
66	Praetorian Standard, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$12,380,441	0.2%	Rank history: #54 in FY2021, #48 in FY2022, #84 in FY2024 and not on the FY2025 list; down 18 since FY2022.
67	Protection Unit Top agencies Army (Department of the Army)	$12,071,497	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 408 since FY2022.
68	Inner-Parish Security, Corp Top agencies DHS (Department of Homeland Security)	$11,855,829	0.2%	Rank history: #71 in FY2021, #72 in FY2022, #87 in FY2024 and not on the FY2025 list; up 4 since FY2022.
69	G4S Secure Integration LLC Top agencies DOS (Department of State)	$11,770,532	0.2%	Rank history: #99 in FY2021, #98 in FY2022, #21 in FY2024 and #28 in FY2025; up 29 since FY2022.
70	The Tatitlek Corporation Through Tatitlek Federal Services LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$11,694,735	0.2%	Rank history: #87 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
71	Elliott Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$11,620,400	0.2%	Rank history: not on the FY2021 list, #76 in FY2022, #83 in FY2024 and #63 in FY2025; up 5 since FY2022.
72	Global Security Management Agency, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DMEA (Defense Microelectronics Activity)	$11,425,241	0.2%	Rank history: not on the FY2021 list, #94 in FY2022, #99 in FY2024 and #86 in FY2025; up 22 since FY2022.
73	Excelsior Defense, Inc. Top agencies VA (Department of Veterans Affairs)	$11,167,702	0.2%	Rank history: #64 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
74	Sicuritalia - Securitas Critical Infrastructure Services Inc JV Top agencies DOS (Department of State)	$10,456,286	0.2%	Rank history: #69 in FY2021, #68 in FY2022, #79 in FY2024 and #81 in FY2025; down 6 since FY2022.
75	Guard Force Inc. Top agencies VA (Department of Veterans Affairs)	$10,416,900	0.2%	Rank history: #67 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
76	American Eagle Protective Services Corp Top agencies DHS (Department of Homeland Security) DOL (Department of Labor)	$9,500,458	0.2%	Rank history: #46 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
77	U.S. Security Associates Inc. Through FJC Security Services Inc. Top agencies DHS (Department of Homeland Security)	$9,158,261	0.2%	Rank history: #65 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
78	GEO Transport, Inc. Top agencies DOJ (Department of Justice)	$9,154,591	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
79	Ahtna Professional Services, Inc. Top agencies DHS (Department of Homeland Security)	$8,949,226	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #70 in FY2024 and #54 in FY2025; down 14 since FY2022.
80	Athena Services International LLC Top agencies DHS (Department of Homeland Security)	$8,832,844	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and not on the FY2025 list; new.
81	Gardaworld Federal Nigeria Top agencies DOS (Department of State)	$8,745,783	0.1%	Rank history: #74 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
82	County of Sacramento Through Sacramento County Sheriffs Department Top agencies DOI (Department of the Interior)	$8,704,753	0.1%	Rank history: #91 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
83	Aegis-Kk Security Top agencies DOS (Department of State)	$8,583,993	0.1%	Rank history: #75 in FY2021, not on the FY2022 list, #90 in FY2024 and #93 in FY2025; up 32 since FY2022.
84	North Texas Investors Group, Inc. Top agencies DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs)	$8,501,713	0.1%	Rank history: #78 in FY2021, #49 in FY2022, #89 in FY2024 and not on the FY2025 list; down 35 since FY2022.
85	Akima Facilities Operations LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DTRA (Defense Threat Reduction Agency)	$8,358,035	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	NV Securitas Securitas Critical Infrastructure Services Soc. Top agencies DOS (Department of State)	$7,492,783	0.1%	Rank history: #72 in FY2021, #84 in FY2022, #92 in FY2024 and #88 in FY2025; down 2 since FY2022.
87	MSS Security PTY Limited Top agencies DOS (Department of State)	$7,382,551	0.1%	Rank history: #76 in FY2021, #87 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
88	Gem Technology International, Corp Top agencies DHS (Department of Homeland Security) DOE (Department of Energy)	$7,258,240	0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2024 and not on the FY2025 list; new.
89	Elite Protective Services, Inc. Top agencies DHS (Department of Homeland Security)	$6,969,046	0.1%	Rank history: #57 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; down 27 since FY2022.
90	Defense Contracting Activity, LLC Top agencies USDA (Department of Agriculture)	$6,956,060	0.1%	Rank history: #81 in FY2021, #91 in FY2022, #85 in FY2024 and #68 in FY2025; up 1 since FY2022.
91	PAE Government Services Inc. Through PAE Professional Services, LLC Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) Army (Department of the Army)	$6,491,113	0.1%	Rank history: #44 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; down 44 since FY2022.
92	Apsi-Centerra JV, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security)	$6,323,619	0.1%	Rank history: #41 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
93	Sealaska Corporation Through Security Alliance LLC Top agencies DOS (Department of State)	$6,122,152	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Protection Strategies Inc. Top agencies DOE (Department of Energy)	$6,063,486	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 25 since FY2022.
95	Prudential Protective Services LLC Top agencies DOJ (Department of Justice) Commerce (Department of Commerce)	$6,055,789	0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2024 and #75 in FY2025; new.
96	Strategic Security Corp 2 awardees Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$5,986,862	0.1%	Rank history: not on the FY2021 list, #69 in FY2022, #81 in FY2024 and #57 in FY2025; down 27 since FY2022.
97	Cgs-Ssg Security LLC 2 awardees, including Cgs-Orsa Security LLC and Continuity GS - Fiji, LLC Top agencies DOS (Department of State)	$5,969,003	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 45 since FY2022.
98	Simmons & Golden Security LLC Top agencies DHS (Department of Homeland Security)	$5,927,604	0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and #24 in FY2025; new.
99	Security Watch Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DOI (Department of the Interior)	$5,905,969	0.1%	Rank history: #84 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 8 since FY2022.
100	Athena Joint Venture Services, LLC Top agencies DHS (Department of Homeland Security)	$5,813,503	0.1%	Rank history: #60 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; down 43 since FY2022.

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100 of 568 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 $5.94 billion 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 NAICS 561612 contractors in FY2023?

1. Securitas AB ($618M), 2. Triple Canopy Inc. ($472M), 3. Omniplex World Services Corp ($399M), 4. Metropolitan Security Services, Inc. ($258M), 5. The GEO Group, Inc. ($248M), 6. Mvm, Inc. ($236M), 7. Corecivic, Inc. ($181M), 8. G4S Holding One Inc. ($164M), 9. Inter-Con Security Systems, Inc. ($158M), 10. Covenant Aviation Security LLC ($134M).

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