Top 100 Contractors in NAICS 561612: Security Guards and Patrol Services, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The GEO Group, Inc. 2 awardees, including GEO Transport, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$665,423,950	9.3%	Rank history: #7 in FY2021, #4 in FY2022, #5 in FY2023, #5 in FY2024 and #4 in FY2025; up 3 since Aug 2024–Jul 2025.
2	Metropolitan Security Services, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice) GSA (General Services Administration)	$523,653,985	7.3%	Rank history: #4 in FY2021, #5 in FY2022, #4 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since Aug 2024–Jul 2025.
3	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USAF (Department of the Air Force)	$508,965,746	7.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 72 since Aug 2024–Jul 2025.
4	Securitas Critical Infrastructure Services Inc. Through Paragon Systems Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$415,533,126	5.8%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #1 in FY2025; down 2 since Aug 2024–Jul 2025.
5	Constellis, LLC 3 awardees, including Triple Canopy Inc., Centerra Group, LLC and American K-9 Detection Services, LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State) AOUSC (Administrative Office of the U.S. Courts)	$410,182,712	5.7%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	Corecivic, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$363,601,478	5.1%	Rank history: #9 in FY2021, #7 in FY2022, #7 in FY2023, #8 in FY2024 and #5 in FY2025; down 1 since Aug 2024–Jul 2025.
7	Nana Regional Corporation, Inc. 3 awardees, including Akima Infrastructure Protection LLC, Akima Global Services, LLC and Akima Centerra Integrated Services LLC Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts)	$306,007,048	4.3%	Rank history: #13 in FY2021, #12 in FY2022, #14 in FY2023, #22 in FY2024 and #6 in FY2025; up 73 since Aug 2024–Jul 2025.
8	Universal Protection Service, Limited Partnership 2 awardees, including Universal Protection Service, LLC Top agencies DHS (Department of Homeland Security) Smithsonian (Smithsonian Institution) DOI (Department of the Interior)	$284,893,482	4.0%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #13 in FY2025; up 4 since Aug 2024–Jul 2025.
9	Inter-CON Security Systems Inc. Top agencies DOS (Department of State) GAO (Government Accountability Office) DOJ (Department of Justice)	$218,963,095	3.1%	Rank history: #5 in FY2021, #9 in FY2022, #9 in FY2023, #10 in FY2024 and #9 in FY2025; unchanged since Aug 2024–Jul 2025.
10	The Chenega Corporation 8 awardees, including Chenega Global Protection, LLC, Chenega Naswik International LLC and Chenega Security International, LLC Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) Army (Department of the Army)	$215,569,474	3.0%	Rank history: #33 in FY2021, #23 in FY2022, #12 in FY2023, #35 in FY2024 and #7 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	Pond Security Service GMBH Top agencies Army (Department of the Army) DECA (Defense Commissary Agency) DHA (Defense Health Agency)	$156,041,007	2.2%	Rank history: #11 in FY2021, #10 in FY2022, #11 in FY2023, #13 in FY2024 and #12 in FY2025; up 2 since Aug 2024–Jul 2025.
12	Bering Straits Native Corporation 4 awardees, including Paragon Professional Services LLC, Bering Straits Professional Services, LLC and Bering Global Solutions, LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State) DOT (Department of Transportation)	$149,171,099	2.1%	Rank history: #39 in FY2021, #37 in FY2022, #39 in FY2023, #88 in FY2024 and #11 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	BC Partners LLP 4 awardees, including Gardaworld Federal Services LLC, Gardaworld Federal and Aegis-Kk Security Top agencies DOS (Department of State) Army (Department of the Army) Navy (Department of the Navy)	$148,568,098	2.1%	Rank history: not on the FY2021 list, #40 in FY2022, #13 in FY2023, #9 in FY2024 and #8 in FY2025; down 7 since Aug 2024–Jul 2025.
14	Covenant Aviation Security, LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$140,777,110	2.0%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; unchanged since Aug 2024–Jul 2025.
15	Kerberos International Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior)	$138,477,454	1.9%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, #14 in FY2024 and #14 in FY2025; down 4 since Aug 2024–Jul 2025.
16	Mvm, Inc. Top agencies DHS (Department of Homeland Security)	$102,688,721	1.4%	Rank history: #10 in FY2021, #3 in FY2022, #6 in FY2023, #7 in FY2024 and #10 in FY2025; down 9 since Aug 2024–Jul 2025.
17	G4S Secure Solutions (USA) Inc. Top agencies DHS (Department of Homeland Security)	$100,226,306	1.4%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #17 in FY2025; up 8 since Aug 2024–Jul 2025.
18	Bradley Technologies Inc. Top agencies DHS (Department of Homeland Security) CSOSA (Court Services and Offender Supervision Agency) Army (Department of the Army)	$85,818,643	1.2%	Rank history: #82 in FY2021, #74 in FY2022, #30 in FY2023, #19 in FY2024 and #16 in FY2025; down 2 since Aug 2024–Jul 2025.
19	Vendtech-Sgi LLC Top agencies DHS (Department of Homeland Security)	$82,163,813	1.1%	Rank history: #15 in FY2021, #17 in FY2022, #19 in FY2023, #18 in FY2024 and #19 in FY2025; unchanged since Aug 2024–Jul 2025.
20	CDA Incorporated Top agencies DHS (Department of Homeland Security)	$73,053,690	1.0%	Rank history: #22 in FY2021, #25 in FY2022, #35 in FY2023, #20 in FY2024 and #18 in FY2025; unchanged since Aug 2024–Jul 2025.
21	Continuity Global Solutions LLC 7 awardees, including I3 Pathfinder USA LLC, Torres-Avarn Security LLC and Cgs-Orsa Security LLC Top agencies DOS (Department of State) Army (Department of the Army) USAF (Department of the Air Force)	$69,751,597	1.0%	Rank history: #49 in FY2021, #46 in FY2022, #38 in FY2023, #50 in FY2024 and #20 in FY2025; up 21 since Aug 2024–Jul 2025.
22	American Eagle Protective Services Corp Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$69,213,615	1.0%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #52 in FY2025; up 31 since Aug 2024–Jul 2025.
23	Simmons & Golden Security LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy)	$63,147,615	0.9%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, #54 in FY2024 and #24 in FY2025; up 3 since Aug 2024–Jul 2025.
24	Golden Svcs, LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy)	$58,433,717	0.8%	Rank history: #14 in FY2021, #13 in FY2022, #27 in FY2023, #36 in FY2024 and #32 in FY2025; up 10 since Aug 2024–Jul 2025.
25	VMD Systems Integrators LLC Top agencies DHS (Department of Homeland Security)	$54,383,728	0.8%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2023, #34 in FY2024 and #31 in FY2025; up 3 since Aug 2024–Jul 2025.
26	Management & Training Corporation Top agencies DHS (Department of Homeland Security)	$49,229,967	0.7%	Rank history: #29 in FY2021, #28 in FY2022, #26 in FY2023, #28 in FY2024 and #25 in FY2025; up 1 since Aug 2024–Jul 2025.
27	Acuity International LLC 2 awardees, including Acuity - Janus Global, LLC Top agencies DOS (Department of State) Army (Department of the Army) USAF (Department of the Air Force)	$45,377,574	0.6%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	Diversified Protection Corp 2 awardees, including Fiore Industries Inc. Top agencies DHS (Department of Homeland Security) DOL (Department of Labor) NARA (National Archives and Records Administration)	$42,843,088	0.6%	Rank history: #16 in FY2021, #16 in FY2022, #20 in FY2023, #30 in FY2024 and #21 in FY2025; down 6 since Aug 2024–Jul 2025.
29	The Whitestone Group, Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) DHS (Department of Homeland Security)	$42,693,753	0.6%	Rank history: not on the FY2021 list, #45 in FY2022, #53 in FY2023, #45 in FY2024 and #28 in FY2025; unchanged since Aug 2024–Jul 2025.
30	Trailboss Enterprises, Inc. Top agencies DHS (Department of Homeland Security)	$42,680,791	0.6%	Rank history: #77 in FY2021, not on the FY2022–FY2023 lists, #32 in FY2024 and #26 in FY2025; down 9 since Aug 2024–Jul 2025.
31	Kr-Mtac LLC Top agencies DHS (Department of Homeland Security)	$40,282,676	0.6%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, #33 in FY2024 and #30 in FY2025; down 1 since Aug 2024–Jul 2025.
32	Nve, Inc. Top agencies DOS (Department of State)	$40,106,577	0.6%	Rank history: #37 in FY2021, #24 in FY2022, #33 in FY2023, #91 in FY2024 and #23 in FY2025; up 9 since Aug 2024–Jul 2025.
33	Meritus Solutions Group LLC 2 awardees, including Pinnacle Protection Partners, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$38,089,920	0.5%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	Afognak Native Corporation Through Shields Point LLC Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$35,911,636	0.5%	Rank history: #18 in FY2021, #35 in FY2022, #45 in FY2023, #67 in FY2024 and #46 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Pütz Security AG Top agencies DOS (Department of State)	$31,714,599	0.4%	Rank history: not on the FY2021–FY2025 lists; up 408 since Aug 2024–Jul 2025.
36	Aviation Security Management LLC Top agencies DHS (Department of Homeland Security)	$31,651,356	0.4%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
37	Vision Quest Solutions Inc. Top agencies USDA (Department of Agriculture) DOE (Department of Energy) Commerce (Department of Commerce)	$31,469,256	0.4%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; up 11 since Aug 2024–Jul 2025.
38	G4S Secure Integration LLC Top agencies DOS (Department of State)	$31,363,567	0.4%	Rank history: #99 in FY2021, #98 in FY2022, #69 in FY2023, #21 in FY2024 and #27 in FY2025; down 14 since Aug 2024–Jul 2025.
39	Security 1 Solutions LLC 2 awardees, including S1S Alpha LLC Top agencies DOD (Department of Defense) Navy (Department of the Navy)	$29,542,283	0.4%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 140 since Aug 2024–Jul 2025.
40	Spectrum Security Services, Inc. Top agencies DHS (Department of Homeland Security)	$28,969,695	0.4%	Rank history: #45 in FY2021, #42 in FY2022, #44 in FY2023, #52 in FY2024 and #40 in FY2025; up 21 since Aug 2024–Jul 2025.
41	SERVEXO Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) Navy (Department of the Navy)	$27,883,874	0.4%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 19 since Aug 2024–Jul 2025.
42	ISS Action Inc. Top agencies DHS (Department of Homeland Security)	$26,516,749	0.4%	Rank history: #23 in FY2021, #19 in FY2022, #18 in FY2023, #23 in FY2024 and #36 in FY2025; down 9 since Aug 2024–Jul 2025.
43	Hana Industries, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOT (Department of Transportation)	$24,863,142	0.3%	Rank history: #30 in FY2021, #30 in FY2022, #31 in FY2023, #37 in FY2024 and #29 in FY2025; down 8 since Aug 2024–Jul 2025.
44	Ahtna, Incorporated 2 awardees, including Ahtna Professional Services, Inc. and Ahtna Integrated Services LLC Top agencies DHS (Department of Homeland Security)	$24,421,444	0.3%	Rank history: #32 in FY2021, #27 in FY2022, #57 in FY2023, not on the FY2024 list and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	The Day & Zimmermann Group, Inc. Through SOC LLC Top agencies DOS (Department of State) Navy (Department of the Navy)	$23,750,484	0.3%	Rank history: #3 in FY2021, #6 in FY2022, #15 in FY2023, #66 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
46	Hana Technologies & Systems, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$23,047,599	0.3%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #72 in FY2025; up 38 since Aug 2024–Jul 2025.
47	Joeun System Corp. Top agencies Army (Department of the Army) DOS (Department of State)	$22,323,166	0.3%	Rank history: not on the FY2021 list, #51 in FY2022, #47 in FY2023, #57 in FY2024 and #45 in FY2025; up 9 since Aug 2024–Jul 2025.
48	G4S France JV Top agencies DOS (Department of State)	$19,663,353	0.3%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 2 since Aug 2024–Jul 2025.
49	Alante Security Group, Inc. Top agencies DHS (Department of Homeland Security)	$18,058,857	0.3%	Rank history: #51 in FY2021, #83 in FY2022, #54 in FY2023, #60 in FY2024 and #56 in FY2025; up 9 since Aug 2024–Jul 2025.
50	HBC Management Services, Inc. Top agencies SSA (Social Security Administration)	$17,581,908	0.2%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51	The Cogar Group. Ltd. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) OPM (Office of Personnel Management)	$16,999,855	0.2%	Rank history: #58 in FY2021, #56 in FY2022, #51 in FY2023, #69 in FY2024 and #51 in FY2025; up 4 since Aug 2024–Jul 2025.
52	Culpepper & Associates Security Services Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) NARA (National Archives and Records Administration)	$16,253,327	0.2%	Rank history: #35 in FY2021, #41 in FY2022, #46 in FY2023, #55 in FY2024 and #44 in FY2025; down 8 since Aug 2024–Jul 2025.
53	Gem Technology International, Corp Top agencies DHS (Department of Homeland Security) DOE (Department of Energy) DOS (Department of State)	$15,664,453	0.2%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, #93 in FY2024 and not on the FY2025 list; up 189 since Aug 2024–Jul 2025.
54	Trust Consulting Services Inc. Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation) EPA (Environmental Protection Agency)	$15,357,040	0.2%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 92 since Aug 2024–Jul 2025.
55	North American Security, Incorporated Top agencies DHS (Department of Homeland Security)	$15,091,119	0.2%	Rank history: #25 in FY2021, #29 in FY2022, #29 in FY2023, #31 in FY2024 and #34 in FY2025; down 17 since Aug 2024–Jul 2025.
56	Ids International, LLC 2 awardees, including Ids International Government Services LLC Top agencies DOS (Department of State) NARA (National Archives and Records Administration) Army (Department of the Army)	$15,035,638	0.2%	Rank history: #42 in FY2021, not on the FY2022–FY2023 lists, #44 in FY2024 and #39 in FY2025; down 24 since Aug 2024–Jul 2025.
57	Johnson Security Bureau, Inc. Top agencies DHS (Department of Homeland Security)	$14,316,642	0.2%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #59 in FY2025; up 7 since Aug 2024–Jul 2025.
58	Singularity Security Group LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$14,241,710	0.2%	Rank history: #89 in FY2021, #59 in FY2022, #62 in FY2023, #62 in FY2024 and #58 in FY2025; up 10 since Aug 2024–Jul 2025.
59	KR Contracting Inc. Top agencies DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense) Treasury (Department of the Treasury)	$13,417,542	0.2%	Rank history: #31 in FY2021, #31 in FY2022, #42 in FY2023, #58 in FY2024 and #73 in FY2025; up 19 since Aug 2024–Jul 2025.
60	GXC Max Inc. Top agencies DHS (Department of Homeland Security)	$13,082,291	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	First Coast Security Solutions Inc. Top agencies DHS (Department of Homeland Security)	$12,873,528	0.2%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 26 since Aug 2024–Jul 2025.
62	Koniag, Inc. 3 awardees, including Koniag Professional Services, LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$12,724,544	0.2%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 122 since Aug 2024–Jul 2025.
63	G4S India JV Top agencies DOS (Department of State)	$12,503,933	0.2%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #49 in FY2025; up 11 since Aug 2024–Jul 2025.
64	VXL Enterprises LLC Top agencies DOS (Department of State)	$12,406,573	0.2%	Rank history: #63 in FY2021, #43 in FY2022, #55 in FY2023, #77 in FY2024 and #69 in FY2025; up 19 since Aug 2024–Jul 2025.
65	TCS Alpha Security LLC Top agencies DHS (Department of Homeland Security)	$12,178,774	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Securemedy Inc. Top agencies National Gallery of Art Army (Department of the Army) HHS (Department of Health and Human Services)	$12,040,393	0.2%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 19 since Aug 2024–Jul 2025.
67	Civis Holding SPA Through C.i.v.i.s. Centro Italiano DI Vigilanza Interna E Stradale S.P.A. Top agencies Army (Department of the Army)	$11,885,891	0.2%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #77 in FY2025; up 24 since Aug 2024–Jul 2025.
68	Defense Consulting Services LLC Top agencies DHS (Department of Homeland Security) DISA (Defense Information Systems Agency) DHA (Defense Health Agency)	$11,821,440	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, #59 in FY2023, #74 in FY2024 and #65 in FY2025; up 1 since Aug 2024–Jul 2025.
69	Surveillance Security, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$11,638,899	0.2%	Rank history: #66 in FY2021, #64 in FY2022, #60 in FY2023, #51 in FY2024 and #63 in FY2025; up 2 since Aug 2024–Jul 2025.
70	Gardaworld-Transguard Group UAE 2 awardees, including Gardaworld Federal Nigeria Top agencies DOS (Department of State)	$11,632,365	0.2%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 19 since Aug 2024–Jul 2025.
71	American Security Programs Inc. Top agencies NARA (National Archives and Records Administration)	$11,181,793	0.2%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; down 8 since Aug 2024–Jul 2025.
72	GXC Inc Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$11,039,047	0.2%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 36 since Aug 2024–Jul 2025.
73	NV Securitas Securitas Critical Infrastructure Services Soc. Top agencies DOS (Department of State)	$9,774,402	0.1%	Rank history: #72 in FY2021, #84 in FY2022, #86 in FY2023, #92 in FY2024 and #81 in FY2025; up 26 since Aug 2024–Jul 2025.
74	G4S Guardsman JV Top agencies DOS (Department of State)	$9,445,982	0.1%	Rank history: not on the FY2021–FY2023 lists, #100 in FY2024 and #85 in FY2025; up 39 since Aug 2024–Jul 2025.
75	Excalibur Associates Inc. 2 awardees Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture)	$9,190,510	0.1%	Rank history: #43 in FY2021, #39 in FY2022, #37 in FY2023, #46 in FY2024 and #62 in FY2025; down 10 since Aug 2024–Jul 2025.
76	G4S Denmark JV Top agencies DOS (Department of State)	$9,093,647	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 22 since Aug 2024–Jul 2025.
77	Patronus Systems Inc Top agencies DHS (Department of Homeland Security)	$9,027,518	0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023, #39 in FY2024 and #38 in FY2025; down 37 since Aug 2024–Jul 2025.
78	United Security Inc. Top agencies DOJ (Department of Justice)	$8,330,562	0.1%	Rank history: #48 in FY2021, #58 in FY2022, #43 in FY2023, #49 in FY2024 and #47 in FY2025; down 35 since Aug 2024–Jul 2025.
79	Defense Contracting Activity, LLC Top agencies USDA (Department of Agriculture) EPA (Environmental Protection Agency)	$8,014,713	0.1%	Rank history: #81 in FY2021, #91 in FY2022, #90 in FY2023, #85 in FY2024 and #64 in FY2025; down 25 since Aug 2024–Jul 2025.
80	Global Security Management Agency, Inc. Top agencies Navy (Department of the Navy) DMEA (Defense Microelectronics Activity) DHS (Department of Homeland Security)	$7,495,902	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #72 in FY2023, #99 in FY2024 and #79 in FY2025; up 10 since Aug 2024–Jul 2025.
81	Starside Security & Investigation Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$7,494,880	0.1%	Rank history: not on the FY2021–FY2025 lists; up 28 since Aug 2024–Jul 2025.
82	G4S Evik JV Top agencies DOS (Department of State)	$7,393,155	0.1%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #88 in FY2025; up 12 since Aug 2024–Jul 2025.
83	Sicuritalia - Securitas Critical Infrastructure Services Inc JV Top agencies DOS (Department of State)	$6,895,465	0.1%	Rank history: #69 in FY2021, #68 in FY2022, #74 in FY2023, #79 in FY2024 and #74 in FY2025; down 2 since Aug 2024–Jul 2025.
84	Cape Fox Corporation 2 awardees, including Kwaan Tech, LLC and Cape Fox Facilities Services, LLC Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) DOS (Department of State)	$6,878,209	0.1%	Rank history: not on the FY2021–FY2025 lists; up 52 since Aug 2024–Jul 2025.
85	G4S Argentina JV Top agencies DOS (Department of State)	$6,817,935	0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 20 since Aug 2024–Jul 2025.
86	Excelsior Defense, Inc. Top agencies VA (Department of Veterans Affairs)	$6,751,800	0.1%	Rank history: #64 in FY2021, #63 in FY2022, #73 in FY2023, not on the FY2024 list and #93 in FY2025; up 16 since Aug 2024–Jul 2025.
87	Metro East Joint Venture LLC Top agencies DHS (Department of Homeland Security)	$6,626,537	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Tatitlek Federal Services LLC Top agencies DHS (Department of Homeland Security)	$6,622,531	0.1%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #71 in FY2025; down 22 since Aug 2024–Jul 2025.
89	G4S Hong Kong JV Top agencies DOS (Department of State)	$5,957,800	0.1%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 26 since Aug 2024–Jul 2025.
90	Hana Enterprises, Inc. Top agencies DOE (Department of Energy) Commerce (Department of Commerce)	$5,944,268	0.1%	Rank history: not on the FY2021–FY2025 lists; up 175 since Aug 2024–Jul 2025.
91	Securitas Seguridad Espana / Scis Ute Top agencies DOS (Department of State)	$5,829,628	0.1%	Rank history: not on the FY2021–FY2025 lists; up 12 since Aug 2024–Jul 2025.
92	G4S Kenya JV Top agencies DOS (Department of State)	$5,710,867	0.1%	Rank history: not on the FY2021–FY2025 lists; up 399 since Aug 2024–Jul 2025.
93	G4S UK JV Top agencies DOS (Department of State)	$5,703,838	0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 24 since Aug 2024–Jul 2025.
94	Maverick Strategies LLC Top agencies DHS (Department of Homeland Security)	$5,494,679	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	Asset Protection & Security Services, L.P. Top agencies DHS (Department of Homeland Security)	$5,315,752	0.1%	Rank history: #90 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Imaq Walden JV, LLC Top agencies DHS (Department of Homeland Security)	$5,225,009	0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 15 since Aug 2024–Jul 2025.
97	G4S Barbados JV Top agencies DOS (Department of State)	$5,185,254	0.1%	Rank history: not on the FY2021–FY2025 lists; up 43 since Aug 2024–Jul 2025.
98	Sa-593 Security JV LLC Top agencies DOS (Department of State)	$5,118,849	0.1%	Rank history: not on the FY2021–FY2025 lists; up 20 since Aug 2024–Jul 2025.
99	Kermax, LLC Top agencies DHS (Department of Homeland Security)	$4,875,314	0.1%	Rank history: not on the FY2021–FY2025 lists; up 24 since Aug 2024–Jul 2025.
100	MSS Security PTY Limited Top agencies DOS (Department of State)	$4,847,735	0.1%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and #91 in FY2025; up 1 since 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 $7.16 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. 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.

Quick answers