Top 100 Contractors in NAICS 5616: Investigation and Security Services, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Triple Canopy Inc. 3 awardees, including Centerra Group, LLC and Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOE (Department of Energy)	$776,415,789	11.0%	Rank history: #2 in FY2021, #2 in FY2023, #5 in FY2024 and #3 in FY2025; up 1 since FY2021.
2	Securitas AB 5 awardees, including Paragon Systems Inc., Securitas Critical Infrastructure Services, Inc. and Securitas Electronic Security, Inc. Top agencies DHS (Department of Homeland Security) DCSA (Defense Counterintelligence and Security Agency) AOUSC (Administrative Office of the U.S. Courts)	$695,595,162	9.8%	Rank history: #1 in FY2021, #1 in FY2023, #2 in FY2024 and not on the FY2025 list; down 1 since FY2021.
3	Mvm, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$249,205,202	3.5%	Rank history: #12 in FY2021, #7 in FY2023, #8 in FY2024 and #10 in FY2025; up 9 since FY2021.
4	The GEO Group, Inc. 2 awardees, including GEO Transport, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$239,684,573	3.4%	Rank history: #9 in FY2021, #5 in FY2023, #6 in FY2024 and #4 in FY2025; up 5 since FY2021.
5	Metropolitan Security Services, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice) GSA (General Services Administration)	$228,163,293	3.2%	Rank history: #5 in FY2021, #4 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2021.
6	The Day & Zimmermann Group, Inc. Through SOC LLC Top agencies DOS (Department of State) DOE (Department of Energy)	$188,963,283	2.7%	Rank history: #4 in FY2021, #17 in FY2023, #82 in FY2024 and not on the FY2025 list; down 2 since FY2021.
7	Corecivic, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$174,165,404	2.5%	Rank history: #11 in FY2021, #9 in FY2023, #9 in FY2024 and #5 in FY2025; up 4 since FY2021.
8	G4S Holding One Inc. 12 awardees, including G4S Secure Integration LLC, G4S Secure Solutions (USA) Inc. and G4S Secure Solutions International Inc. Top agencies DOS (Department of State) DHS (Department of Homeland Security) Navy (Department of the Navy)	$171,122,457	2.4%	Rank history: #8 in FY2021, #10 in FY2023, #34 in FY2024 and not on the FY2025 list; unchanged since FY2021.
9	Inter-Con Security Systems, Inc. Top agencies DOS (Department of State) DOJ (Department of Justice) NARA (National Archives and Records Administration)	$169,529,342	2.4%	Rank history: #7 in FY2021, #11 in FY2023, #11 in FY2024 and #8 in FY2025; down 2 since FY2021.
10	HP Enterprise Services LLC Through Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$162,308,657	2.3%	Rank history: #48 in FY2021, #8 in FY2023, #20 in FY2024 and not on the FY2025 list; up 38 since FY2021.
11	CACI International Inc. 6 awardees, including Caci Premier Technology, LLC, Caci, Inc. - Federal and Caci Nss, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$153,975,281	2.2%	Rank history: #3 in FY2021, #6 in FY2023, #7 in FY2024 and #6 in FY2025; down 8 since FY2021.
12	Pond Security Service GMBH Top agencies Army (Department of the Army) DOS (Department of State) DODEA (Department of Defense Education Activity)	$128,738,967	1.8%	Rank history: #14 in FY2021, #13 in FY2023, #15 in FY2024 and #14 in FY2025; up 2 since FY2021.
13	Covenant Aviation Security LLC Top agencies DHS (Department of Homeland Security)	$120,236,904	1.7%	Rank history: #15 in FY2021, #12 in FY2023, #12 in FY2024 and #12 in FY2025; up 2 since FY2021.
14	Nana Regional Corporation Inc 3 awardees, including Akima Global Services, LLC, Rivertech LLC and Lockwood Hills Federal LLC Top agencies DHS (Department of Homeland Security) DCSA (Defense Counterintelligence and Security Agency) NASA (National Aeronautics and Space Administration)	$86,024,101	1.2%	Rank history: #13 in FY2021, #16 in FY2023, #35 in FY2024 and not on the FY2025 list; down 1 since FY2021.
15	M. C. Dean Inc. Through M.c. Dean, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOD (Department of Defense) DOT (Department of Transportation)	$80,875,332	1.1%	Rank history: #16 in FY2021, #19 in FY2023, #17 in FY2024 and #16 in FY2025; up 1 since FY2021.
16	Diversified Protection Corp Top agencies DHS (Department of Homeland Security) DOL (Department of Labor) DOD (Department of Defense)	$77,026,341	1.1%	Rank history: #17 in FY2021, #23 in FY2023, #36 in FY2024 and #29 in FY2025; up 1 since FY2021.
17	Advanced Technology Systems Company, Inc. (OF Virginia) Top agencies USAF (Department of the Air Force)	$76,465,937	1.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #40 in FY2024 and not on the FY2025 list; up 162 since FY2021.
18	Golden Svcs, LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy) NASA (National Aeronautics and Space Administration)	$68,791,718	1.0%	Rank history: #19 in FY2021, #31 in FY2023, #44 in FY2024 and #39 in FY2025; up 1 since FY2021.
19	American Security Programs Inc 5 awardees, including Sos Security LLC and Securadyne Systems Intermediate LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State) GAO (Government Accountability Office)	$68,079,690	1.0%	Rank history: #33 in FY2021, #63 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
20	EOD Technology Inc. Through Acuity - Janus Global, LLC Top agencies DOS (Department of State)	$66,895,438	0.9%	Rank history: #23 in FY2021, #26 in FY2023, #67 in FY2024 and not on the FY2025 list; up 3 since FY2021.
21	The Chenega Corporation 5 awardees, including Chenega Global Protection, LLC, Chenega Integrated Security Solutions, LLC and Chenega Analytic Business Solutions, LLC Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) DOJ (Department of Justice)	$63,997,751	0.9%	Rank history: #26 in FY2021, #14 in FY2023, #43 in FY2024 and not on the FY2025 list; up 5 since FY2021.
22	Vendtech-Sgi LLC Top agencies DHS (Department of Homeland Security)	$63,950,584	0.9%	Rank history: #20 in FY2021, #22 in FY2023, #23 in FY2024 and #24 in FY2025; down 2 since FY2021.
23	Chenega Infinity, LLC Top agencies DHS (Department of Homeland Security) MDA (DOD Missile Defense Agency) DARPA (Defense Advanced Research Projects Agency)	$59,055,956	0.8%	Rank history: #28 in FY2021, #25 in FY2023, #52 in FY2024 and #84 in FY2025; up 5 since FY2021.
24	Johnson Controls Security Solutions LLC 25 awardees, including Johnson Controls Building Automation Systems, LLC, Johnson Controls Fire Protection LP and Johnson Controls, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security) Navy (Department of the Navy)	$58,562,143	0.8%	Rank history: #21 in FY2021, #30 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
25	Protection Strategies Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$57,505,530	0.8%	Rank history: #41 in FY2021, #33 in FY2023, #49 in FY2024 and #49 in FY2025; up 16 since FY2021.
26	ISS Action Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) CFPB (Consumer Financial Protection Bureau)	$56,408,916	0.8%	Rank history: #30 in FY2021, #21 in FY2023, #28 in FY2024 and #48 in FY2025; up 4 since FY2021.
27	Global Precision Systems, LLC Top agencies DHS (Department of Homeland Security)	$55,988,817	0.8%	Rank history: #24 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
28	Universal Protection GP, LLC 2 awardees, including Universal Protection Service, Limited Partnership and Universal Protection Service, LLC Top agencies Smithsonian (Smithsonian Institution) DHS (Department of Homeland Security) DOI (Department of the Interior)	$54,181,508	0.8%	Rank history: #31 in FY2021, #18 in FY2023, #30 in FY2024 and not on the FY2025 list; up 3 since FY2021.
29	Ids International Government Services LLC 2 awardees, including Ids International, LLC Top agencies DOS (Department of State) NARA (National Archives and Records Administration)	$52,973,421	0.7%	Rank history: not on the FY2021 list, #27 in FY2023 and not on the FY2024–FY2025 lists; new.
30	Nve, Inc. Top agencies DOS (Department of State)	$46,783,587	0.7%	Rank history: #46 in FY2021, #39 in FY2023, not on the FY2024 list and #27 in FY2025; up 16 since FY2021.
31	CDA Incorporated Top agencies DHS (Department of Homeland Security)	$46,377,788	0.7%	Rank history: #29 in FY2021, #41 in FY2023, #26 in FY2024 and #23 in FY2025; down 2 since FY2021.
32	Serco North America (Holdings) Inc Through Serco Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$46,228,562	0.7%	Rank history: #25 in FY2021, #47 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
33	Aviation Security Management LLC Top agencies DHS (Department of Homeland Security)	$45,289,056	0.6%	Rank history: #40 in FY2021, #32 in FY2023, #59 in FY2024 and #55 in FY2025; up 7 since FY2021.
34	Ahtna, Incorporated Through Ahtna Support & Training Services LLC Top agencies DHS (Department of Homeland Security)	$43,117,410	0.6%	Rank history: #39 in FY2021, #70 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
35	Management & Training Corporation Top agencies DHS (Department of Homeland Security)	$40,842,805	0.6%	Rank history: #36 in FY2021, #29 in FY2023, #33 in FY2024 and #30 in FY2025; up 1 since FY2021.
36	North American Security, Incorporated Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$37,346,988	0.5%	Rank history: #32 in FY2021, #35 in FY2023, #37 in FY2024 and #44 in FY2025; down 4 since FY2021.
37	KR Contracting Inc. Top agencies DHS (Department of Homeland Security) OPM (Office of Personnel Management) Treasury (Department of the Treasury)	$35,148,652	0.5%	Rank history: #38 in FY2021, #48 in FY2023, #68 in FY2024 and #85 in FY2025; up 1 since FY2021.
38	Sullivan Cove Consultants, LLC Top agencies DOJ (Department of Justice)	$34,635,432	0.5%	Rank history: #45 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
39	Hana Industries, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOT (Department of Transportation)	$34,210,837	0.5%	Rank history: #37 in FY2021, #37 in FY2023, #45 in FY2024 and #35 in FY2025; down 2 since FY2021.
40	Akima Global Services, LLC Top agencies DHS (Department of Homeland Security)	$30,449,943	0.4%	Rank history: not on the FY2021 list, #52 in FY2023, #21 in FY2024 and #26 in FY2025; new.
41	Xator LLC Top agencies USAF (Department of the Air Force) DOS (Department of State)	$28,718,056	0.4%	Rank history: #53 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2021.
42	Afognak Native Corporation 7 awardees, including Alutiiq Advanced Security Solutions LLC, Shields Point LLC and Alutiiq Professional Training, LLC Top agencies DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration) DOJ (Department of Justice)	$26,585,014	0.4%	Rank history: #22 in FY2021, #55 in FY2023, #84 in FY2024 and not on the FY2025 list; down 20 since FY2021.
43	VMD Systems Integrators, LLC Top agencies DHS (Department of Homeland Security)	$25,805,080	0.4%	Rank history: #27 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
44	Asrc Federal Professional Services, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$25,677,647	0.4%	Rank history: #18 in FY2021, #46 in FY2023 and not on the FY2024–FY2025 lists; down 26 since FY2021.
45	Patronus Systems Inc. Top agencies DHS (Department of Homeland Security)	$25,171,478	0.4%	Rank history: #50 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
46	BCF Solutions, Inc. Top agencies USAF (Department of the Air Force)	$23,630,208	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
47	Master Security Company LLC Top agencies DHS (Department of Homeland Security)	$23,464,626	0.3%	Rank history: #44 in FY2021, #42 in FY2023, #54 in FY2024 and not on the FY2025 list; down 3 since FY2021.
48	Bering Straits Native Corporation Through Bering Global Solutions, LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$22,854,623	0.3%	Rank history: #49 in FY2021, #49 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
49	Chenega Security International, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$22,541,979	0.3%	Rank history: #43 in FY2021, #71 in FY2023, #81 in FY2024 and #88 in FY2025; down 6 since FY2021.
50	American-Paragon Protective Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$22,368,030	0.3%	Rank history: #47 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
51	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)	$22,277,882	0.3%	Rank history: #54 in FY2021, #43 in FY2023, #58 in FY2024 and #81 in FY2025; up 3 since FY2021.
52	BC Partners LLP Through Gardaworld Federal Services LLC Top agencies DOS (Department of State)	$21,582,588	0.3%	Rank history: not on the FY2021 list, #15 in FY2023, #10 in FY2024 and #9 in FY2025; new.
53	Culpepper & Associates Security Services Inc. Top agencies VA (Department of Veterans Affairs) NARA (National Archives and Records Administration) USAF (Department of the Air Force)	$19,908,515	0.3%	Rank history: #42 in FY2021, #57 in FY2023, #71 in FY2024 and #62 in FY2025; down 11 since FY2021.
54	Spectrum Security Services, Inc. Top agencies DHS (Department of Homeland Security)	$19,210,083	0.3%	Rank history: #55 in FY2021, #54 in FY2023, #65 in FY2024 and #54 in FY2025; up 1 since FY2021.
55	PAE Government Services Inc. Through PAE Professional Services, LLC Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) SEC (Securities and Exchange Commission)	$18,460,188	0.3%	Rank history: #62 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
56	VXL Enterprises LLC 2 awardees Top agencies DOS (Department of State)	$18,376,716	0.3%	Rank history: #81 in FY2021, #68 in FY2023, #94 in FY2024 and #94 in FY2025; up 25 since FY2021.
57	Kerberos International, Inc. 2 awardees, including Acadia Protective Services II, LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) DOI (Department of the Interior)	$17,854,755	0.3%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
58	The Whitestone Group, Inc. Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) VA (Department of Veterans Affairs)	$17,365,012	0.2%	Rank history: not on the FY2021 list, #66 in FY2023, #57 in FY2024 and #34 in FY2025; up 114 since FY2021.
59	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)	$17,354,237	0.2%	Rank history: #60 in FY2021, #45 in FY2023, #63 in FY2024 and #42 in FY2025; up 1 since FY2021.
60	Praetorian Standard, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$15,753,839	0.2%	Rank history: #68 in FY2021, #81 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
61	North Texas Investors Group, Inc. Top agencies VA (Department of Veterans Affairs) DISA (Defense Information Systems Agency)	$15,525,994	0.2%	Rank history: #98 in FY2021 and not on the FY2023–FY2025 lists; up 37 since FY2021.
62	Joeun System Corp. Top agencies Army (Department of the Army)	$15,225,460	0.2%	Rank history: not on the FY2021 list, #58 in FY2023, #73 in FY2024 and #63 in FY2025; new.
63	C.I.V.I.S. Centro Italiano DI Vigilanza Interna E Stradale SPA Top agencies Army (Department of the Army)	$15,047,661	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 50 since FY2021.
64	Trinity Technology Group, Inc. Top agencies DHS (Department of Homeland Security)	$14,715,136	0.2%	Rank history: #57 in FY2021, #72 in FY2023, #72 in FY2024 and not on the FY2025 list; down 7 since FY2021.
65	S1S Alpha LLC Top agencies DOD (Department of Defense)	$14,533,014	0.2%	Rank history: not on the FY2021 list, #28 in FY2023, #47 in FY2024 and #58 in FY2025; new.
66	I3 Pathfinder USA LLC Top agencies DOS (Department of State)	$14,486,000	0.2%	Rank history: #64 in FY2021, #69 in FY2023, #76 in FY2024 and #67 in FY2025; down 2 since FY2021.
67	Capital Center for Credibility Assessment Corporation Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,332,332	0.2%	Rank history: #75 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
68	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$13,203,261	0.2%	Rank history: #59 in FY2021, not on the FY2023–FY2024 lists and #65 in FY2025; down 9 since FY2021.
69	The Cogar Group. Ltd. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) USDA (Department of Agriculture)	$13,186,067	0.2%	Rank history: #74 in FY2021, #65 in FY2023, #86 in FY2024 and #70 in FY2025; up 5 since FY2021.
70	Madison Associates Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DOS (Department of State)	$13,120,770	0.2%	Rank history: #78 in FY2021, #61 in FY2023, #60 in FY2024 and #41 in FY2025; up 8 since FY2021.
71	Athena Joint Venture Services, LLC Top agencies DHS (Department of Homeland Security)	$12,935,387	0.2%	Rank history: #76 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
72	United Security Inc. Top agencies DOJ (Department of Justice)	$12,934,572	0.2%	Rank history: #58 in FY2021, #53 in FY2023, #62 in FY2024 and #64 in FY2025; down 14 since FY2021.
73	Professional Risk Management, Inc. Top agencies DOJ (Department of Justice)	$12,852,918	0.2%	Rank history: #79 in FY2021, #62 in FY2023, #46 in FY2024 and #45 in FY2025; up 6 since FY2021.
74	Singularity Security Group LLC Top agencies Navy (Department of the Navy)	$12,560,375	0.2%	Rank history: not on the FY2021 list, #76 in FY2023, #77 in FY2024 and #78 in FY2025; up 40 since FY2021.
75	Prosecure, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$12,232,893	0.2%	Rank history: #77 in FY2021, #77 in FY2023, #92 in FY2024 and #80 in FY2025; up 2 since FY2021.
76	The Tatitlek Corporation 2 awardees, including Tatitlek Federal Services LLC and Tatitlek Technologies, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Army (Department of the Army)	$12,190,217	0.2%	Rank history: not on the FY2021 list, #85 in FY2023 and not on the FY2024–FY2025 lists; up 35 since FY2021.
77	Elite Protective Services, Inc. Top agencies DHS (Department of Homeland Security)	$11,527,772	0.2%	Rank history: #73 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
78	Five Stones Intelligence Inc. Top agencies DOJ (Department of Justice) DOS (Department of State)	$11,335,767	0.2%	Rank history: not on the FY2021 list, #92 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2021.
79	Excelsior Defense, Inc. Top agencies VA (Department of Veterans Affairs)	$11,249,180	0.2%	Rank history: #82 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
80	Surveillance Security, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$11,240,732	0.2%	Rank history: #85 in FY2021, #74 in FY2023, #64 in FY2024 and #82 in FY2025; up 5 since FY2021.
81	Ahtna Professional Services, Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$10,919,495	0.2%	Rank history: not on the FY2021 list, #98 in FY2023, #87 in FY2024 and #69 in FY2025; up 192 since FY2021.
82	Apsi-Centerra JV, LLC Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security)	$10,857,291	0.2%	Rank history: #51 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
83	Servexo Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) Commerce (Department of Commerce)	$10,787,619	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 50 since FY2021.
84	Sicuritalia - Securitas Critical Infrastructure Services Inc JV Top agencies DOS (Department of State)	$10,785,994	0.2%	Rank history: #88 in FY2021, #90 in FY2023, #96 in FY2024 and not on the FY2025 list; up 4 since FY2021.
85	Strategic Security Corp Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$10,605,800	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #98 in FY2024 and #72 in FY2025; up 279 since FY2021.
86	SEPARGEFI Through Seris Security Top agencies Army (Department of the Army)	$10,224,347	0.1%	Rank history: #89 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
87	Versar Inc. 2 awardees, including Versar Security Systems, LLC Top agencies DOT (Department of Transportation) AOUSC (Administrative Office of the U.S. Courts) GAO (Government Accountability Office)	$10,192,418	0.1%	Rank history: #71 in FY2021, #93 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
88	Gardaworld Federal Nigeria Top agencies DOS (Department of State)	$9,978,862	0.1%	Rank history: #94 in FY2021, #100 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
89	Inner-Parish Security, Corp Top agencies DHS (Department of Homeland Security)	$9,953,940	0.1%	Rank history: #90 in FY2021, #83 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
90	Siemens Aktiengesellschaft 4 awardees, including Siemens Industry Inc. and Siemens Canada Limited Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$9,840,020	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 22 since FY2021.
91	American Eagle Protective Services Corp Top agencies DHS (Department of Homeland Security) DOL (Department of Labor)	$9,607,580	0.1%	Rank history: #56 in FY2021, #94 in FY2023 and not on the FY2024–FY2025 lists; down 35 since FY2021.
92	Media Plumbing & Heating Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) Army (Department of the Army)	$9,517,256	0.1%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
93	Bradley Technologies Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) CFTC (Commodity Futures Trading Commission)	$9,515,737	0.1%	Rank history: not on the FY2021 list, #36 in FY2023, #25 in FY2024 and #21 in FY2025; up 9 since FY2021.
94	Agma Security Service Inc. Top agencies DHS (Department of Homeland Security)	$9,236,299	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 28 since FY2021.
95	Elliott Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$9,222,268	0.1%	Rank history: not on the FY2021 list, #86 in FY2023, not on the FY2024 list and #79 in FY2025; up 130 since FY2021.
96	Guard Force Inc. Top agencies VA (Department of Veterans Affairs)	$9,075,598	0.1%	Rank history: #86 in FY2021, #91 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
97	Defense Consulting Services LLC Top agencies DHS (Department of Homeland Security) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$8,986,795	0.1%	Rank history: not on the FY2021 list, #73 in FY2023, #91 in FY2024 and #89 in FY2025; up 76 since FY2021.
98	Jackson Hole Airport Board Top agencies DHS (Department of Homeland Security)	$8,788,901	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 5 since FY2021.
99	Securamerica, LLC Through American Security Programs Inc. Top agencies SEC (Securities and Exchange Commission) OSD (Office of the Secretary of Defense) NARA (National Archives and Records Administration)	$8,565,270	0.1%	Rank history: #34 in FY2021, #64 in FY2023, #90 in FY2024 and not on the FY2025 list; down 65 since FY2021.
100	U.S. Security Associates Inc. Through FJC Security Services Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior)	$8,500,365	0.1%	Rank history: #83 in FY2021, #96 in FY2023 and not on the FY2024–FY2025 lists; down 17 since FY2021.

Rankings for the codes under NAICS 5616

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 $7.07 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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.

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