Top 100 Contractors in NAICS 561210: Facilities Support Services, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Honeywell International Inc. 9 awardees, including National Technology & Engineering Solutions of Sandia, LLC and Honeywell Federal Manufacturing & Technologies, LLC Top agencies DOE (Department of Energy) USAF (Department of the Air Force) Navy (Department of the Navy)	$6,092,625,618	14.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Triad National Security LLC Top agencies DOE (Department of Energy) USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$5,162,951,227	12.0%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Consolidated Nuclear Security, LLC Top agencies DOE (Department of Energy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$3,649,011,102	8.5%	Rank history: #4 in FY2021, #4 in FY2022, #3 in FY2023 and #4 in FY2025; unchanged since FY2023.
4	Ut-Battelle LLC Top agencies DOE (Department of Energy)	$2,546,284,451	5.9%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2023 and #3 in FY2025; up 1 since FY2023.
5	Fluor Corporation 5 awardees, including Savannah River Nuclear Solutions LLC, Fluor Intercontinental, Inc. and Fluor Federal Petroleum Operations, LLC Top agencies DOE (Department of Energy) Army (Department of the Army) USAF (Department of the Air Force)	$2,347,130,965	5.4%	Rank history: #11 in FY2021, #10 in FY2022, #15 in FY2023 and #5 in FY2025; up 10 since FY2023.
6	V2X, Inc. 2 awardees, including V2X Systems LLC and Vectrus Services A / S Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOS (Department of State)	$1,816,547,067	4.2%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
7	KBR Wyle Services LLC 2 awardees, including KBR Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,533,637,868	3.6%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
8	Amentum Services, Inc. 11 awardees, including PAE Government Services, Inc., Dzsp 21 LLC and Syncom Space Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,124,604,747	2.6%	Rank history: #8 in FY2021, #8 in FY2022, #10 in FY2023 and not on the FY2025 list; up 2 since FY2023.
9	Mission Support & Test Services LLC Top agencies DOE (Department of Energy) Army (Department of the Army) USAF (Department of the Air Force)	$1,113,406,099	2.6%	Rank history: #9 in FY2021, #9 in FY2022, #9 in FY2023 and #10 in FY2025; unchanged since FY2023.
10	Parsons Corporation Through Xator LLC Top agencies DOS (Department of State)	$1,033,103,601	2.4%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
11	National Technology & Engineering Solutions of Sandia, LLC Top agencies DOE (Department of Energy) USAF (Department of the Air Force)	$738,382,472	1.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
12	The GEO Group, Inc. 3 awardees, including B.i. Incorporated and GEO Secure Services, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$564,235,871	1.3%	Rank history: #10 in FY2021, #11 in FY2022, #13 in FY2023 and #12 in FY2025; up 1 since FY2023.
13	KBR Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$479,410,890	1.1%	Rank history: #100 in FY2021, #24 in FY2022, #7 in FY2023 and not on the FY2025 list; down 6 since FY2023.
14	Amentum Parsons Logistics Services LLC Top agencies Army (Department of the Army)	$478,995,037	1.1%	Rank history: not on the FY2021 list, #76 in FY2022, #85 in FY2023 and not on the FY2025 list; up 71 since FY2023.
15	General Dynamics Corporation 5 awardees, including General Dynamics OTS (Wilkes Barre), LLC, General Dynamics Land Systems Inc. and General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DCMA (Defense Contract Management Agency)	$456,766,548	1.1%	Rank history: #49 in FY2021, #18 in FY2022, #8 in FY2023 and #16 in FY2025; down 7 since FY2023.
16	Vectrus Systems Corporation 3 awardees, including V2X Systems LLC, Vectrus-J&J Facilities Support, LLC and Vectrus Federal Services GMBH Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$436,706,588	1.0%	Rank history: #6 in FY2021, #7 in FY2022, #4 in FY2023 and not on the FY2025 list; down 12 since FY2023.
17	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Leidos Biomedical Research Inc. Top agencies NSF (National Science Foundation) HHS (Department of Health and Human Services) Army (Department of the Army)	$364,646,635	0.8%	Rank history: #15 in FY2021, #16 in FY2022, #17 in FY2023 and #14 in FY2025; unchanged since FY2023.
18	Family Endeavors, Inc. Top agencies HHS (Department of Health and Human Services)	$357,854,816	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
19	Michael Baker International, LLC Through Sallyport Global Holdings Inc. Top agencies USAF (Department of the Air Force)	$247,376,437	0.6%	Rank history: #29 in FY2021, #14 in FY2022, #16 in FY2023 and not on the FY2025 list; down 3 since FY2023.
20	Amentum Holdings, Inc. 9 awardees, including Amentum Services, Inc., PAE Government Services, Inc. and Syncom Space Services LLC Top agencies Army (Department of the Army) DOS (Department of State) NASA (National Aeronautics and Space Administration)	$229,636,793	0.5%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
21	Arctic Slope Regional Corporation 8 awardees, including Asrc Communications, Ltd., Asrc Federal Field Services, LLC and Asrc Federal Facilities Logistics LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) DHS (Department of Homeland Security)	$228,327,427	0.5%	Rank history: #18 in FY2021, #19 in FY2022, #19 in FY2023 and #13 in FY2025; down 2 since FY2023.
22	BAE Systems 2 awardees, including BAE Systems Ordnance Systems Inc. Top agencies Army (Department of the Army)	$188,570,587	0.4%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
23	Savannah River Nuclear Solutions LLC Top agencies DOE (Department of Energy)	$175,500,785	0.4%	Rank history: #7 in FY2021, #6 in FY2022, #6 in FY2023 and not on the FY2025 list; down 17 since FY2023.
24	Pride Industries Top agencies Army (Department of the Army) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$165,453,880	0.4%	Rank history: #22 in FY2021, #21 in FY2022, #21 in FY2023 and #34 in FY2025; down 3 since FY2023.
25	Akima Facilities Operations LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$148,428,987	0.3%	Rank history: not on the FY2021 list, #43 in FY2022, #41 in FY2023 and #19 in FY2025; up 16 since FY2023.
26	Skookum Educational Programs Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$147,987,095	0.3%	Rank history: #28 in FY2021, #28 in FY2022, #26 in FY2023 and #21 in FY2025; unchanged since FY2023.
27	Professional Contract Services, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$132,120,635	0.3%	Rank history: #38 in FY2021, #34 in FY2022, #36 in FY2023 and #20 in FY2025; up 9 since FY2023.
28	J & J Maintenance Inc. 4 awardees, including J&J and Alms Mission Support Solutions, LLC and J&J Germany GMBH Top agencies Army (Department of the Army) Navy (Department of the Navy) DECA (Defense Commissary Agency)	$131,297,770	0.3%	Rank history: #26 in FY2021, #22 in FY2022, #25 in FY2023 and #24 in FY2025; down 3 since FY2023.
29	Amentum Technology, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$127,173,836	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
30	Teamstaff Inc. Through DLH Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$124,989,434	0.3%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #27 in FY2025; up 26 since FY2023.
31	Loyalty Support Services Top agencies Army (Department of the Army) DOD (Department of Defense)	$108,679,345	0.3%	Rank history: #35 in FY2021, #31 in FY2022, #34 in FY2023 and #15 in FY2025; up 3 since FY2023.
32	Jones Lang Lasalle Americas, Inc. 2 awardees Top agencies GSA (General Services Administration) DECA (Defense Commissary Agency) AOUSC (Administrative Office of the U.S. Courts)	$108,078,573	0.3%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
33	Deployed Services, LLC Top agencies HHS (Department of Health and Human Services)	$103,636,072	0.2%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and not on the FY2025 list; down 5 since FY2023.
34	Cotton Commercial Usa, Inc. Top agencies DHS (Department of Homeland Security)	$100,841,103	0.2%	Rank history: #17 in FY2021, not on the FY2022–FY2023 lists and #25 in FY2025; returned.
35	Nana Regional Corporation Inc. 4 awardees, including Akima Intra-Data, LLC, Akima Range Readiness Operations LLC and Akima Logistics Services LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$96,048,711	0.2%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
36	Facility Services Management, Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency) NARA (National Archives and Records Administration)	$87,579,004	0.2%	Rank history: #45 in FY2021, #40 in FY2022, #35 in FY2023 and #60 in FY2025; down 1 since FY2023.
37	Tlingit Haida Tribal Business Corporation 5 awardees, including T&H Services, LLC, Kira Training Services LLC and Kira Aviation Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$85,521,568	0.2%	Rank history: #31 in FY2021, #25 in FY2022, #24 in FY2023 and not on the FY2025 list; down 13 since FY2023.
38	Asrc Federal Field Services, LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$84,061,135	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	Emcor Group Inc. 2 awardees, including Emcor Government Services, Inc. and Mesa Energy Systems, Inc. Top agencies GSA (General Services Administration) NARA (National Archives and Records Administration) GAO (Government Accountability Office)	$82,034,649	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #28 in FY2025; up 6 since FY2023.
40	Guidehouse Inc. Through Aptim Federal Services, LLC Top agencies DLA (Defense Logistics Agency)	$75,509,338	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
41	Pegasus Support Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$74,809,174	0.2%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
42	Chugach Alaska Corporation 5 awardees, including Defense Base Services, LLC, Chugach Consolidated Solutions, LLC and Wolf Creek Federal Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) GSA (General Services Administration)	$72,815,281	0.2%	Rank history: #25 in FY2021, #26 in FY2022, #23 in FY2023 and #98 in FY2025; down 19 since FY2023.
43	Pond Constructors Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$72,307,286	0.2%	Rank history: not on the FY2021 list, #84 in FY2022, #49 in FY2023 and #42 in FY2025; up 6 since FY2023.
44	Tiya Services L.L.C. Top agencies Army (Department of the Army)	$72,130,138	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; up 69 since FY2023.
45	Action Facilities Management Inc. 2 awardees, including Action Integrated Services LLC Top agencies GSA (General Services Administration) DOJ (Department of Justice) Army (Department of the Army)	$71,928,786	0.2%	Rank history: #71 in FY2021, #62 in FY2022, #47 in FY2023 and #30 in FY2025; up 2 since FY2023.
46	Weston Solutions Holdings, Inc. Through Weston Solutions, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$71,699,411	0.2%	Rank history: #93 in FY2021, #46 in FY2022, #40 in FY2023 and #77 in FY2025; down 6 since FY2023.
47	Koa Lani JV LLC Top agencies Navy (Department of the Navy)	$70,612,465	0.2%	Rank history: #56 in FY2021, #36 in FY2022, #42 in FY2023 and #38 in FY2025; down 5 since FY2023.
48	Syncom Space Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$70,123,365	0.2%	Rank history: #20 in FY2021, #20 in FY2022, #22 in FY2023 and not on the FY2025 list; down 26 since FY2023.
49	Brillient Corporation Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$68,138,153	0.2%	Rank history: #40 in FY2021, not on the FY2022 list, #44 in FY2023 and #40 in FY2025; down 5 since FY2023.
50	Jacobs Government Services Company Through Amentum Technology, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$64,994,832	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
51	The Building People LLC Top agencies DOE (Department of Energy) GSA (General Services Administration) DHS (Department of Homeland Security)	$63,718,100	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #47 in FY2025; up 8 since FY2023.
52	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOJ (Department of Justice)	$61,432,381	0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #46 in FY2023 and not on the FY2025 list; down 6 since FY2023.
53	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Army (Department of the Army)	$61,109,908	0.1%	Rank history: #3 in FY2021, #3 in FY2022, #50 in FY2023 and not on the FY2025 list; down 3 since FY2023.
54	KBR Diego Garcia, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$60,668,569	0.1%	Rank history: #39 in FY2021, #50 in FY2022, #52 in FY2023 and #53 in FY2025; down 2 since FY2023.
55	Nika Technologies Inc. Top agencies Army (Department of the Army)	$60,064,993	0.1%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
56	Dsc-Emi Maintenance Solutions, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DODEA (Department of Defense Education Activity)	$59,060,823	0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and #46 in FY2025; up 1 since FY2023.
57	Jacobs Engineering Group Inc. 2 awardees, including Amentum Technology, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$55,029,254	0.1%	Rank history: #19 in FY2021, #17 in FY2022, #18 in FY2023 and not on the FY2025 list; down 39 since FY2023.
58	South Dade Air Conditioning & Refrigeration Inc. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) DOJ (Department of Justice)	$54,022,740	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #41 in FY2025; up 6 since FY2023.
59	Ranger Defense, Incorporated Through Ranger Land Systems, Inc. Top agencies DHS (Department of Homeland Security)	$53,592,233	0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
60	Tatitlek Corporation Through Tatitlek Technologies, LLC Top agencies DOS (Department of State)	$51,765,798	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #52 in FY2025; up 9 since FY2023.
61	Electronic Metrology Laboratory, LLC Top agencies GSA (General Services Administration) SSA (Social Security Administration) CFPB (Consumer Financial Protection Bureau)	$50,770,315	0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #50 in FY2025; up 16 since FY2023.
62	Four Seasons Environmental Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$50,724,431	0.1%	Rank history: #63 in FY2021, #57 in FY2022, #60 in FY2023 and #45 in FY2025; down 2 since FY2023.
63	Amentum Spaceport LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$49,810,276	0.1%	Rank history: #37 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
64	Battelle Memorial Institute Top agencies NSF (National Science Foundation)	$49,568,955	0.1%	Rank history: #68 in FY2021, #51 in FY2022, #61 in FY2023 and #62 in FY2025; down 3 since FY2023.
65	Readiness Management Support LC Top agencies USAF (Department of the Air Force)	$49,485,346	0.1%	Rank history: not on the FY2021 list, #91 in FY2022, not on the FY2023 list and #48 in FY2025; returned.
66	King & George, LLC 2 awardees, including Invicta Global, LLC Top agencies GSA (General Services Administration) DOT (Department of Transportation) Army (Department of the Army)	$45,063,780	0.1%	Rank history: #46 in FY2021, #38 in FY2022, #43 in FY2023 and #54 in FY2025; down 23 since FY2023.
67	WE2 Support Services 8A JV LLC Top agencies DOE (Department of Energy)	$44,059,361	0.1%	Rank history: #62 in FY2021, #60 in FY2022, #55 in FY2023 and #99 in FY2025; down 12 since FY2023.
68	Chugach Logistics and Facility Services JV, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$43,332,809	0.1%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; up 200 since FY2023.
69	Nelson Refrigeration Inc. Top agencies DECA (Defense Commissary Agency)	$42,623,712	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
70	Cherokee Nation System Solutions LLC Top agencies DOS (Department of State)	$42,614,691	0.1%	Rank history: not on the FY2021 list, #65 in FY2022, #78 in FY2023 and not on the FY2025 list; up 8 since FY2023.
71	Swift & Staley Inc. Top agencies DOE (Department of Energy)	$41,995,927	0.1%	Rank history: #70 in FY2021, #54 in FY2022, #74 in FY2023 and #84 in FY2025; up 3 since FY2023.
72	Technica LLC Top agencies Army (Department of the Army)	$40,650,317	0.1%	Rank history: #44 in FY2021, #56 in FY2022, #63 in FY2023 and not on the FY2025 list; down 9 since FY2023.
73	Vectrus Federal Services GMBH Top agencies Army (Department of the Army)	$37,672,837	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Chenega Base & Logistics Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$37,650,210	0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; up 52 since FY2023.
75	TECH Systems Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$37,511,881	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #80 in FY2023 and not on the FY2025 list; up 5 since FY2023.
76	Akima Support Operations, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$37,450,003	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 161 since FY2023.
77	Nve, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$37,399,013	0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and #93 in FY2025; up 16 since FY2023.
78	Obera LLC Top agencies USAF (Department of the Air Force)	$36,734,365	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
79	Aleut O&M Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$36,658,457	0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #92 in FY2023 and #82 in FY2025; up 13 since FY2023.
80	Phoenix Management Inc Top agencies USAF (Department of the Air Force) Army (Department of the Army) GSA (General Services Administration)	$36,612,287	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #61 in FY2025; down 8 since FY2023.
81	Tunista Logistics Solutions LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$36,063,884	0.1%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; up 102 since FY2023.
82	Yukon Fire Protection Services Inc. Top agencies GSA (General Services Administration) SSA (Social Security Administration) USAF (Department of the Air Force)	$35,522,411	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 98 since FY2023.
83	Kgjj Engineering Solutions, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$35,317,038	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #36 in FY2025; up 11 since FY2023.
84	Red River Science & Technology, LLC Top agencies Army (Department of the Army)	$35,185,126	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #44 in FY2025; down 5 since FY2023.
85	CMI Management, LLC Top agencies DHS (Department of Homeland Security) GSA (General Services Administration) AFRH (Armed Forces Retirement Home)	$34,749,050	0.1%	Rank history: #78 in FY2021, #72 in FY2022, #53 in FY2023 and not on the FY2025 list; down 32 since FY2023.
86	Afognak Native Corporation 2 awardees, including "Alutiiq Logistics & Maintenance Services, Llc" and Alutiiq C&W Services, LLC Top agencies Navy (Department of the Navy) DOE (Department of Energy) USAF (Department of the Air Force)	$34,141,266	0.1%	Rank history: #21 in FY2021, #27 in FY2022, #30 in FY2023 and #55 in FY2025; down 56 since FY2023.
87	Siemens Industry Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Army (Department of the Army)	$33,881,595	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
88	DAE Sung LLC Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) HHS (Department of Health and Human Services)	$33,008,428	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and #78 in FY2025; up 9 since FY2023.
89	R & D Maintenance Services Inc. Top agencies Army (Department of the Army)	$32,767,384	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2025 list; up 1 since FY2023.
90	Jll-Midnight Sun Ifms LLC Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) Army (Department of the Army)	$32,474,921	0.1%	Rank history: #75 in FY2021, #68 in FY2022, #87 in FY2023 and #70 in FY2025; down 3 since FY2023.
91	Dzsp 21 LLC Top agencies Navy (Department of the Navy)	$31,755,423	0.1%	Rank history: #33 in FY2021, #30 in FY2022, #29 in FY2023 and not on the FY2025 list; down 62 since FY2023.
92	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)	$31,594,597	0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #71 in FY2023 and #57 in FY2025; down 21 since FY2023.
93	Sos International LLC Top agencies DOS (Department of State)	$31,199,577	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	HCI Management Services Company Top agencies DOS (Department of State)	$30,993,596	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Servicesource Inc. Top agencies WHS (DOD Washington Headquarters Service) DOT (Department of Transportation)	$30,913,229	0.1%	Rank history: #85 in FY2021, #66 in FY2022, not on the FY2023 list and #86 in FY2025; up 20 since FY2023.
96	Charles River Laboratories, Inc. Top agencies HHS (Department of Health and Human Services)	$30,595,618	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Melwood Horticultural Training Center, Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) GSA (General Services Administration)	$30,395,233	0.1%	Rank history: not on the FY2021 list, #78 in FY2022, not on the FY2023 list and #76 in FY2025; up 9 since FY2023.
98	VGS Infrastructure Services Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$30,037,590	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Alutiiq Information Management, LLC Top agencies DOS (Department of State)	$29,992,872	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Dewberry Engineers Inc. Top agencies DHS (Department of Homeland Security)	$29,520,853	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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 $43.1 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.

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