Top 100 Contractors in PSC S2: Housekeeping Services, FY2024

Name: Top 100 Contractors in PSC S2: Housekeeping Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 25% of FY2024 PSC S2 contract dollars

Contract obligations: $12,578,289,607 Net of deobligations, by contracts coded PSC S2 or a code under it
Contractors: 6,555 Parent companies with an obligation
Largest contractor: Amentum Services, Inc. $593 million, 4.5% 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	Amentum Services, Inc. 9 awardees, including PAE Government Services, Inc., Dzsp 21 LLC and Pae-Perini LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOS (Department of State)	$593,433,797	4.5%	Rank history: #4 in FY2021, #2 in FY2022, #6 in FY2023 and not on the FY2025 list; up 5 since FY2023.
2	Metropolitan Security Services, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice) GSA (General Services Administration)	$495,016,232	3.7%	Rank history: #6 in FY2021, #11 in FY2022, #7 in FY2023 and #4 in FY2025; up 5 since FY2023.
3	Environmental Chemical Corporation Through ECC Constructors LLC Top agencies Army (Department of the Army)	$477,142,037	3.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 112 since FY2023.
4	The GEO Group, Inc. Top agencies DHS (Department of Homeland Security)	$459,086,420	3.5%	Rank history: #3 in FY2021, #4 in FY2022, #3 in FY2023 and #2 in FY2025; down 1 since FY2023.
5	Securitas Electronic Security Inc. Through Paragon Systems Inc. Top agencies DHS (Department of Homeland Security) NARA (National Archives and Records Administration)	$262,806,461	2.0%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
6	Omniplex World Services Corp Through Triple Canopy Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$236,767,835	1.8%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and not on the FY2025 list; down 1 since FY2023.
7	Securitas AB 3 awardees, including Paragon Systems Inc. Top agencies DHS (Department of Homeland Security) NARA (National Archives and Records Administration)	$235,849,163	1.8%	Rank history: #2 in FY2021, #3 in FY2022, #1 in FY2023 and not on the FY2025 list; down 6 since FY2023.
8	Mvm, Inc. Top agencies DHS (Department of Homeland Security)	$214,490,000	1.6%	Rank history: #16 in FY2021, #9 in FY2022, #8 in FY2023 and #12 in FY2025; unchanged since FY2023.
9	Corecivic, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$202,704,710	1.5%	Rank history: #12 in FY2021, #12 in FY2022, #10 in FY2023 and #6 in FY2025; up 1 since FY2023.
10	Triple Canopy Inc. 3 awardees, including Centerra Group, LLC and Centerra Integrated Facilities Services, LLC Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) Army (Department of the Army)	$163,237,652	1.2%	Rank history: #1 in FY2021, #1 in FY2022, #4 in FY2023 and #7 in FY2025; down 6 since FY2023.
11	Covenant Aviation Security LLC Top agencies DHS (Department of Homeland Security)	$156,017,437	1.2%	Rank history: #19 in FY2021, #17 in FY2022, #15 in FY2023 and #15 in FY2025; up 4 since FY2023.
12	KBR Wyle Services LLC Through KBR Services, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$140,324,900	1.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
13	Skookum Educational Programs Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$134,463,872	1.0%	Rank history: #41 in FY2021, #37 in FY2022, #30 in FY2023 and #17 in FY2025; up 17 since FY2023.
14	Pride Industries Top agencies USAF (Department of the Air Force) Army (Department of the Army) Treasury (Department of the Treasury)	$124,493,439	0.9%	Rank history: #17 in FY2021, #19 in FY2022, #16 in FY2023 and #16 in FY2025; up 2 since FY2023.
15	Pond Security Service GMBH Top agencies Army (Department of the Army) DOS (Department of State) DECA (Defense Commissary Agency)	$120,184,862	0.9%	Rank history: #18 in FY2021, #15 in FY2022, #18 in FY2023 and #20 in FY2025; up 3 since FY2023.
16	Arctic Slope Regional Corporation 3 awardees, including Asrc Communications, Ltd., Arctec Alaska JV and Asrc Federal Field Services, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$109,744,626	0.8%	Rank history: #15 in FY2021, #16 in FY2022, #14 in FY2023 and #11 in FY2025; down 2 since FY2023.
17	Professional Contract Services, Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency) DHS (Department of Homeland Security)	$108,798,632	0.8%	Rank history: #22 in FY2021, #20 in FY2022, #25 in FY2023 and #24 in FY2025; up 8 since FY2023.
18	Kerberos International Inc. 2 awardees, including Acadia Protective Services II, LLC Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior)	$107,596,682	0.8%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #22 in FY2025; up 16 since FY2023.
19	Amentum Holdings, Inc. 5 awardees, including PAE Government Services, Inc., Amentum Spaceport LLC and Amentum Services, Inc. Top agencies DOS (Department of State) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$93,272,402	0.7%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2025; new.
20	Centerra Group, LLC Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOI (Department of the Interior)	$91,583,693	0.7%	Rank history: #53 in FY2021, not on the FY2022–FY2023 lists and #33 in FY2025; returned.
21	J & J Maintenance Inc. 3 awardees, including J&J Germany GMBH Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$90,767,143	0.7%	Rank history: #20 in FY2021, #14 in FY2022, #20 in FY2023 and #35 in FY2025; down 1 since FY2023.
22	Chenega Global Protection, LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) HHS (Department of Health and Human Services)	$89,756,020	0.7%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
23	Akima Global Services, LLC Top agencies DHS (Department of Homeland Security)	$89,232,971	0.7%	Rank history: not on the FY2021 list, #69 in FY2022, #84 in FY2023 and #41 in FY2025; up 61 since FY2023.
24	Paragon Professional Services LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$83,141,869	0.6%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #25 in FY2025; unchanged since FY2023.
25	Global Connections To Employment, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$82,586,562	0.6%	Rank history: #27 in FY2021, #23 in FY2022, #23 in FY2023 and #26 in FY2025; down 2 since FY2023.
26	Vendtech-Sgi LLC Top agencies DHS (Department of Homeland Security)	$81,394,718	0.6%	Rank history: #29 in FY2021, #27 in FY2022, #27 in FY2023 and #32 in FY2025; up 1 since FY2023.
27	Nana Regional Corporation Inc 5 awardees, including Akima Global Services, LLC, Akima Intra-Data, LLC and Akima Centerra Integrated Services LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) AOUSC (Administrative Office of the U.S. Courts)	$78,550,934	0.6%	Rank history: #9 in FY2021, #18 in FY2022, #12 in FY2023 and #27 in FY2025; down 15 since FY2023.
28	Tiya Services L.L.C. Top agencies Army (Department of the Army)	$72,130,138	0.5%	Rank history: #30 in FY2021, #29 in FY2022, #33 in FY2023 and #36 in FY2025; up 5 since FY2023.
29	Didlake Inc. Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service) Commerce (Department of Commerce)	$69,066,018	0.5%	Rank history: #33 in FY2021, #24 in FY2022, #35 in FY2023 and #39 in FY2025; up 6 since FY2023.
30	Vectrus Systems Corporation 2 awardees, including V2X Systems LLC and Vectrus-J&J Facilities Support, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$65,767,325	0.5%	Rank history: #11 in FY2021, #10 in FY2022, #9 in FY2023 and not on the FY2025 list; down 21 since FY2023.
31	Melwood Horticultural Training Center, Inc. Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) DOJ (Department of Justice)	$63,300,267	0.5%	Rank history: #25 in FY2021, #35 in FY2022, #38 in FY2023 and #42 in FY2025; up 7 since FY2023.
32	BC Partners LLP Through Gardaworld Federal Services LLC Top agencies Army (Department of the Army)	$63,294,100	0.5%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; new.
33	KBR Diego Garcia, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$60,688,301	0.5%	Rank history: #31 in FY2021, #39 in FY2022, #32 in FY2023 and #45 in FY2025; down 1 since FY2023.
34	Servicesource Inc. Top agencies WHS (DOD Washington Headquarters Service) DOJ (Department of Justice) Army (Department of the Army)	$59,049,569	0.4%	Rank history: #82 in FY2021, #25 in FY2022, #37 in FY2023 and #38 in FY2025; up 3 since FY2023.
35	V2X, Inc. 3 awardees, including V2X Systems LLC and Advantor Systems II LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$57,460,828	0.4%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
36	CDA Incorporated Top agencies DHS (Department of Homeland Security)	$55,029,165	0.4%	Rank history: #43 in FY2021, #45 in FY2022, #66 in FY2023 and #30 in FY2025; up 30 since FY2023.
37	Bradley Technologies Inc. Top agencies DHS (Department of Homeland Security) CFTC (Commodity Futures Trading Commission)	$53,423,415	0.4%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #31 in FY2025; up 37 since FY2023.
38	Amentum Technology, Inc. Top agencies Navy (Department of the Navy)	$52,505,713	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	G4S Secure Integration LLC Top agencies DOS (Department of State)	$52,058,101	0.4%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; up 113 since FY2023.
40	Akima Infrastructure Protection LLC Top agencies DHS (Department of Homeland Security)	$49,661,470	0.4%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #13 in FY2025; up 29 since FY2023.
41	Amentum Spaceport LLC Top agencies NASA (National Aeronautics and Space Administration)	$49,058,075	0.4%	Rank history: #24 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
42	Universal Protection GP, LLC 2 awardees, including Universal Protection Service, Limited Partnership and Universal Protection Service, LLC Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) Smithsonian (Smithsonian Institution)	$48,180,394	0.4%	Rank history: #46 in FY2021, #38 in FY2022, #21 in FY2023 and not on the FY2025 list; down 21 since FY2023.
43	Universal Protection Service, Limited Partnership Top agencies DHS (Department of Homeland Security) Smithsonian (Smithsonian Institution) DOS (Department of State)	$48,119,776	0.4%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2025; new.
44	Chugach Alaska Corporation 5 awardees, including Defense Base Services, LLC, Chugach Solutions Enterprise, LLC and Chugach Consolidated Solutions, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$47,571,324	0.4%	Rank history: #26 in FY2021, #26 in FY2022, #29 in FY2023 and not on the FY2025 list; down 15 since FY2023.
45	Dsc-Emi Maintenance Solutions, LLC Top agencies Navy (Department of the Navy) DODEA (Department of Defense Education Activity)	$46,974,318	0.4%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #51 in FY2025; up 11 since FY2023.
46	Job Options, Incorporated Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) DECA (Defense Commissary Agency)	$46,723,285	0.4%	Rank history: #40 in FY2021, #49 in FY2022, #36 in FY2023 and #52 in FY2025; down 10 since FY2023.
47	Readiness Management Support LC Top agencies USAF (Department of the Air Force)	$46,214,674	0.3%	Rank history: not on the FY2021 list, #88 in FY2022, not on the FY2023 list and #44 in FY2025; returned.
48	G4S Secure Solutions (USA) Inc. Top agencies DHS (Department of Homeland Security) DOE (Department of Energy)	$46,024,243	0.3%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
49	Texas Workforce Commission Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$45,303,175	0.3%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
50	Management & Training Corporation Top agencies DHS (Department of Homeland Security)	$44,473,943	0.3%	Rank history: #55 in FY2021, #52 in FY2022, #42 in FY2023 and #48 in FY2025; down 8 since FY2023.
51	KBR Services LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$44,466,960	0.3%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and not on the FY2025 list; down 38 since FY2023.
52	WE2 Support Services 8A JV LLC Top agencies DOE (Department of Energy)	$44,059,361	0.3%	Rank history: #51 in FY2021, #54 in FY2022, #39 in FY2023 and #85 in FY2025; down 13 since FY2023.
53	Valiant Technical Services Inc. Top agencies DLA (Defense Logistics Agency)	$43,819,621	0.3%	Rank history: #45 in FY2021, not on the FY2022–FY2023 lists and #49 in FY2025; returned.
54	G4S Holding One Inc. 7 awardees, including G4S Secure Integration LLC, G4S Secure Solutions (USA) Inc. and G4S (Rdc) Top agencies DOS (Department of State) DHS (Department of Homeland Security) DOE (Department of Energy)	$43,491,982	0.3%	Rank history: #8 in FY2021, #13 in FY2022, #11 in FY2023 and not on the FY2025 list; down 43 since FY2023.
55	Chugach Logistics and Facility Services JV, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$43,332,809	0.3%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; up 284 since FY2023.
56	Akima Facilities Operations LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$43,258,500	0.3%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and #47 in FY2025; down 7 since FY2023.
57	Asrc Federal Field Services, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$42,044,260	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Swift & Staley Inc. Top agencies DOE (Department of Energy)	$41,995,927	0.3%	Rank history: #65 in FY2021, #46 in FY2022, #61 in FY2023 and #78 in FY2025; up 3 since FY2023.
59	Pegasus Support Services LLC Top agencies Army (Department of the Army)	$41,895,277	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Fedcap Rehabilitation Services, Inc. 2 awardees Top agencies GSA (General Services Administration) SSA (Social Security Administration) DOI (Department of the Interior)	$41,147,525	0.3%	Rank history: #79 in FY2021, #66 in FY2022, #45 in FY2023 and #46 in FY2025; down 15 since FY2023.
61	CW Resources, Inc. Top agencies DECA (Defense Commissary Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$40,877,162	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
62	North American Security, Incorporated Top agencies DHS (Department of Homeland Security)	$40,462,313	0.3%	Rank history: #50 in FY2021, #58 in FY2022, #55 in FY2023 and #73 in FY2025; down 7 since FY2023.
63	The Chenega Corporation 5 awardees, including Chenega Global Protection, LLC, Chenega Reliable Services LLC and Chenega Tri-Services, LLC Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$38,814,850	0.3%	Rank history: #48 in FY2021, #32 in FY2022, #19 in FY2023 and not on the FY2025 list; down 44 since FY2023.
64	Coastal Enterprises of Jacksonville Inc. Top agencies Navy (Department of the Navy) DECA (Defense Commissary Agency) Army (Department of the Army)	$38,079,761	0.3%	Rank history: not on the FY2021 list, #77 in FY2022, #41 in FY2023 and #69 in FY2025; down 23 since FY2023.
65	Kr-Mtac LLC Top agencies DHS (Department of Homeland Security)	$37,413,000	0.3%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #60 in FY2025; up 27 since FY2023.
66	VMD Systems Integrators Inc Top agencies DHS (Department of Homeland Security)	$36,876,322	0.3%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #61 in FY2025; down 7 since FY2023.
67	Trace Inc. Top agencies DECA (Defense Commissary Agency) USAF (Department of the Air Force) Commerce (Department of Commerce)	$34,497,242	0.3%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
68	Huntsville Rehabilitation Foundation Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) DOJ (Department of Justice)	$33,855,136	0.3%	Rank history: #66 in FY2021, #62 in FY2022, #50 in FY2023 and #66 in FY2025; down 18 since FY2023.
69	Dzsp 21 LLC Top agencies Navy (Department of the Navy)	$31,755,423	0.2%	Rank history: #21 in FY2021, #21 in FY2022, #17 in FY2023 and not on the FY2025 list; down 52 since FY2023.
70	Chenega Base & Logistics Services LLC Top agencies Army (Department of the Army)	$31,069,255	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 53 since FY2023.
71	Chimes International, Ltd. Through Chimes District of Columbia Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) Commerce (Department of Commerce)	$30,897,049	0.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
72	Valiant Integrated Services LLC 2 awardees, including Valiant Government Services LLC and Valiant / Alca JV LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DECA (Defense Commissary Agency)	$30,024,911	0.2%	Rank history: not on the FY2021 list, #64 in FY2022, #58 in FY2023 and #63 in FY2025; down 14 since FY2023.
73	Alutiiq Information Management, LLC Top agencies DOS (Department of State)	$29,992,872	0.2%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; new.
74	Patronus Systems Inc Top agencies DHS (Department of Homeland Security)	$29,035,501	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and #87 in FY2025; up 16 since FY2023.
75	Bering Straits Professional Services, LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$28,998,384	0.2%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
76	Hana Industries, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$28,734,920	0.2%	Rank history: #57 in FY2021, #65 in FY2022, #62 in FY2023 and #65 in FY2025; down 14 since FY2023.
77	Inter-CON Security Systems Inc. Top agencies DOS (Department of State) DOI (Department of the Interior) NARA (National Archives and Records Administration)	$27,688,972	0.2%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2025; new.
78	Golden Svcs, LLC Top agencies DHS (Department of Homeland Security)	$27,190,958	0.2%	Rank history: #35 in FY2021, #40 in FY2022, #68 in FY2023 and #64 in FY2025; down 10 since FY2023.
79	Synergy Logistics Services, LLC 2 awardees, including Synergy Logistics Services II LLC Top agencies DLA (Defense Logistics Agency)	$26,680,211	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 300 since FY2023.
80	Chenega Infinity, LLC Top agencies DHS (Department of Homeland Security) MDA (DOD Missile Defense Agency)	$26,548,512	0.2%	Rank history: #44 in FY2021, #42 in FY2022, #46 in FY2023 and not on the FY2025 list; down 34 since FY2023.
81	Work Services Corporation Top agencies USAF (Department of the Air Force) DECA (Defense Commissary Agency)	$25,198,153	0.2%	Rank history: #84 in FY2021, #80 in FY2022, #79 in FY2023 and #88 in FY2025; down 2 since FY2023.
82	Hamhed LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOI (Department of the Interior)	$24,775,375	0.2%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #76 in FY2025; up 9 since FY2023.
83	HHI Services, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$24,696,418	0.2%	Rank history: #91 in FY2021, #79 in FY2022, #78 in FY2023 and not on the FY2025 list; down 5 since FY2023.
84	Master Security Company LLC Top agencies DHS (Department of Homeland Security)	$24,658,896	0.2%	Rank history: #81 in FY2021, #82 in FY2022, #70 in FY2023 and not on the FY2025 list; down 14 since FY2023.
85	Chimes District of Columbia Inc. Top agencies WHS (DOD Washington Headquarters Service) Army (Department of the Army) Navy (Department of the Navy)	$24,287,888	0.2%	Rank history: #36 in FY2021, #28 in FY2022, #53 in FY2023 and not on the FY2025 list; down 32 since FY2023.
86	Accent Controls, Inc. Top agencies DLA (Defense Logistics Agency)	$23,649,228	0.2%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2025; up 91 since FY2023.
87	Invicta Global, LLC Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) USAF (Department of the Air Force)	$23,287,668	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	Georgia Vocational Rehabilitation Agency Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$23,216,106	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
89	Georgia State of Through Georgia Vocational Rehabilitation Agency Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$23,042,530	0.2%	Rank history: #39 in FY2021, #33 in FY2022, #28 in FY2023 and not on the FY2025 list; down 61 since FY2023.
90	Diversified Protection Corp Top agencies DHS (Department of Homeland Security) NARA (National Archives and Records Administration)	$23,011,678	0.2%	Rank history: #61 in FY2021, #48 in FY2022, #44 in FY2023 and #68 in FY2025; down 46 since FY2023.
91	BPA Facility Services Inc Through B & O Joint Venture LLC Top agencies DHS (Department of Homeland Security)	$22,970,909	0.2%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and not on the FY2025 list; up 9 since FY2023.
92	Excalibur Associates Inc. Top agencies USDA (Department of Agriculture) Commerce (Department of Commerce)	$22,910,414	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #75 in FY2023 and not on the FY2025 list; down 17 since FY2023.
93	Aviation Security Management LLC Top agencies DHS (Department of Homeland Security)	$22,874,417	0.2%	Rank history: #77 in FY2021, #50 in FY2022, #48 in FY2023 and #96 in FY2025; down 45 since FY2023.
94	Titan Facility Services LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$22,695,873	0.2%	Rank history: #83 in FY2021, #83 in FY2022, #82 in FY2023 and not on the FY2025 list; down 12 since FY2023.
95	Facility Services Management, Inc. Top agencies Army (Department of the Army) NARA (National Archives and Records Administration)	$22,527,339	0.2%	Rank history: #75 in FY2021, #75 in FY2022, #67 in FY2023 and not on the FY2025 list; down 28 since FY2023.
96	Training, Rehabilitation, & Development Institute, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$22,452,041	0.2%	Rank history: #89 in FY2021, #95 in FY2022, #98 in FY2023 and #91 in FY2025; up 2 since FY2023.
97	Emcor Group Inc. Through Emcor Government Services, Inc. Top agencies NARA (National Archives and Records Administration) GSA (General Services Administration) DOJ (Department of Justice)	$21,606,073	0.2%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; up 31 since FY2023.
98	Chenega Naswik International LLC Top agencies MDA (DOD Missile Defense Agency) Army (Department of the Army)	$21,567,059	0.2%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
99	State Health Services Texas Department of Through Texas Workforce Commission Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$20,908,055	0.2%	Rank history: #38 in FY2021, #68 in FY2022, #88 in FY2023 and not on the FY2025 list; down 11 since FY2023.
100	Pacific Federal Management Inc Top agencies Navy (Department of the Navy) Army (Department of the Army) DODEA (Department of Defense Education Activity)	$20,879,373	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and not on the FY2025 list; down 36 since FY2023.

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100 of 6,555 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC S2

Code	Net obligations	Largest contractor
S206 Guard Services	$4,862,353,400	Metropolitan Security Services, Inc.
S216 Facilities Operations Support Services	$2,910,207,105	Amentum Services, Inc.
S201 Custodial Janitorial Services	$1,670,173,071	Didlake Inc.
S208 Landscaping/Groundskeeping Services	$1,047,473,809	Environmental Chemical Corporation
S203 Food Services	$558,846,397	Global Connections To Employment, Inc.
S299 Other Housekeeping Services	$333,559,604	J & J Maintenance Inc.
S205 Trash/Garbage Collection Services – Including Portable Sanitation Services	$315,930,025	Hamilton Alliance Inc.
S215 Warehousing and Storage Services	$315,882,349	Amentum Services, Inc.
S222 Waste Treatment and Storage	$224,370,366	Clean Harbors Inc.
S209 Laundry and DryCleaning Services	$127,992,240	Job Options, Incorporated
S204 Fueling and Other Petroleum Services – Excluding Storage	$66,965,489	Amentum Services, Inc.
S202 Fire Protection Services	$42,946,881	Chenega Security California Corporation
S207 Insect and Rodent Control Services	$41,268,888	CDS Services Inc.
S218 Snow Removal/Salt Service (also spreading aggregate or other snow melting material)	$28,546,679	Integriward LLC
S211 Surveillance Services	$18,259,852	Tbp&Jj Worldwide Services, LLC
S214 Carpet Laying and Cleaning	$13,004,813	CF Solutions LLC

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 $13.2 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 S2 contractors in FY2024?

1. Amentum Services, Inc. ($593M), 2. Metropolitan Security Services, Inc. ($495M), 3. Environmental Chemical Corporation ($477M), 4. The GEO Group, Inc. ($459M), 5. Securitas Electronic Security Inc. ($263M), 6. Omniplex World Services Corp ($237M), 7. Securitas AB ($236M), 8. Mvm, Inc. ($214M), 9. Corecivic, Inc. ($203M), 10. Triple Canopy Inc. ($163M).

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