Top 100 Contractors in PSC S216: Facilities Operations Support Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Amentum Services, Inc. 4 awardees, including URS Federal Services International, Inc. and Dyncorp International LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DIA (Defense Intelligence Agency)	$260,576,643	7.9%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
2	Kbr, Inc. Through KBR Services, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DODEA (Department of Defense Education Activity)	$184,126,680	5.6%	Rank history: #4 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
3	Fluor Corporation 4 awardees, including Fluor Intercontinental, Inc., Fluor Amec II, LLC and Rock Island Integrated Services Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$165,082,288	5.0%	Rank history: #2 in FY2022 and not on the FY2023–FY2025 lists; up 37 since FY2020.
4	IAP Global Services LLC 4 awardees, including Iap-Ecc LLC, IAP World Services, Inc. and Readiness Management Support LC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$146,435,562	4.4%	Rank history: #17 in FY2022, #9 in FY2023, #43 in FY2024 and not on the FY2025 list; up 2 since FY2020.
5	PAE Government Services Inc. 2 awardees, including Amentum Design and Facility Management Top agencies DOS (Department of State) Navy (Department of the Navy)	$138,584,397	4.2%	Rank history: #5 in FY2022, #1 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
6	Arctic Slope Regional Corporation 2 awardees, including Asrc Communications, Ltd. and Asrc Federal Field Services, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DECA (Defense Commissary Agency)	$134,321,707	4.1%	Rank history: #7 in FY2022, #5 in FY2023, #3 in FY2024 and #3 in FY2025; up 36 since FY2020.
7	Vectrus Systems Corporation 4 awardees, including V2X Systems LLC, Vectrus-J&J Facilities Support, LLC and Advantor Systems II LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$131,996,396	4.0%	Rank history: #6 in FY2022, #3 in FY2023, #8 in FY2024 and not on the FY2025 list; down 4 since FY2020.
8	Afognak Native Corporation 6 awardees, including Alutiiq Information Management, LLC, Alutiiq Commercial Enterprises LLC and "Alutiiq Logistics & Maintenance Services, Llc" Top agencies DOS (Department of State) USAF (Department of the Air Force) Navy (Department of the Navy)	$100,240,164	3.0%	Rank history: #11 in FY2022, #8 in FY2023, #30 in FY2024 and #21 in FY2025; up 2 since FY2020.
9	Dzsp 21 LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$99,468,809	3.0%	Rank history: #8 in FY2022, #6 in FY2023, #25 in FY2024 and not on the FY2025 list; down 5 since FY2020.
10	Pride Industries Top agencies USAF (Department of the Air Force) Army (Department of the Army) Treasury (Department of the Treasury)	$84,461,087	2.6%	Rank history: #10 in FY2022, #7 in FY2023, #4 in FY2024 and #6 in FY2025; down 1 since FY2020.
11	Amentum Spaceport LLC Top agencies NASA (National Aeronautics and Space Administration)	$84,273,626	2.6%	Rank history: #51 in FY2022, not on the FY2023 list, #13 in FY2024 and not on the FY2025 list; down 3 since FY2020.
12	Tiya Services, L.L.C. Top agencies Army (Department of the Army)	$60,091,915	1.8%	Rank history: #12 in FY2022, #12 in FY2023, #6 in FY2024 and #10 in FY2025; up 3 since FY2020.
13	KBR Diego Garcia, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$57,391,049	1.7%	Rank history: #16 in FY2022, #11 in FY2023, #10 in FY2024 and #12 in FY2025; up 3 since FY2020.
14	Chugach Alaska Corporation 5 awardees, including Defense Base Services, LLC, Wolf Creek Federal Services LLC and Chugach Consolidated Solutions, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DOI (Department of the Interior)	$56,829,024	1.7%	Rank history: #15 in FY2022, #14 in FY2023, #24 in FY2024 and #47 in FY2025; down 7 since FY2020.
15	J & J Maintenance Inc. Top agencies Army (Department of the Army)	$56,371,607	1.7%	Rank history: #9 in FY2022, #13 in FY2023, #23 in FY2024 and #40 in FY2025; up 6 since FY2020.
16	Arctec Alaska JV Top agencies USAF (Department of the Air Force)	$52,116,904	1.6%	Rank history: #14 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
17	Nana Regional Corporation Inc 5 awardees, including Akima Support Operations, LLC, Wolverine Services, LLC and Jade Creek Construction LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$49,205,194	1.5%	Rank history: #26 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
18	Valiant Technical Services Inc. Top agencies DLA (Defense Logistics Agency)	$42,645,886	1.3%	Rank history: not on the FY2022–FY2023 lists, #18 in FY2024 and #22 in FY2025; up 9 since FY2020.
19	Nova Global Supply and Services LLC 3 awardees, including Valiant Government Services LLC, Valiant / Alca JV LLC and Valiant Technical Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$40,495,419	1.2%	Rank history: #13 in FY2022, #16 in FY2023, #69 in FY2024 and not on the FY2025 list; up 15 since FY2020.
20	WE2 Support Services 8A JV LLC Top agencies DOE (Department of Energy)	$39,110,341	1.2%	Rank history: #20 in FY2022, #15 in FY2023, #17 in FY2024 and #27 in FY2025; up 9 since FY2020.
21	Techflow, Inc. Through Techflow Mission Support, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$36,909,084	1.1%	Rank history: #19 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
22	Professional Contract Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$32,951,754	1.0%	Rank history: #25 in FY2022, #23 in FY2023, #7 in FY2024 and #9 in FY2025; down 9 since FY2020.
23	Swift & Staley Inc. Top agencies DOE (Department of Energy)	$32,281,855	1.0%	Rank history: #18 in FY2022, #21 in FY2023, #21 in FY2024 and #16 in FY2025; down 12 since FY2020.
24	Aptim Federal Services LLC Through High Desert Support Services, LLC Top agencies Army (Department of the Army)	$31,993,094	1.0%	Rank history: #32 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
25	Choctaw Nation of Oklahoma Through Choctaw Defense Services Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$29,992,189	0.9%	Rank history: #27 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
26	Cook Inlet Region Inc. Through Portsmouth Mission Alliance, LLC Top agencies DOE (Department of Energy)	$29,798,573	0.9%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
27	Serco North America (Holdings) Inc Through Serco Inc. Top agencies DLA (Defense Logistics Agency)	$29,538,113	0.9%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
28	Jacobs Engineering Group Inc. 3 awardees, including Amentum Technology, Inc. Top agencies Navy (Department of the Navy)	$28,997,576	0.9%	Rank history: #21 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
29	Facility Services Management, Inc. Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$27,532,083	0.8%	Rank history: #29 in FY2022, #24 in FY2023, #33 in FY2024 and #58 in FY2025; down 4 since FY2020.
30	King & George, LLC 2 awardees, including Invicta Global, LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration) Army (Department of the Army)	$24,906,006	0.8%	Rank history: #28 in FY2022, #26 in FY2023, #89 in FY2024 and not on the FY2025 list; up 14 since FY2020.
31	Pegasus Support Services LLC Top agencies Army (Department of the Army)	$24,330,196	0.7%	Rank history: #22 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
32	Pae-Perini LLC Top agencies USAF (Department of the Air Force)	$20,684,392	0.6%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
33	Kings Bay Support Services, LLC Top agencies Navy (Department of the Navy)	$19,561,928	0.6%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
34	Melwood Horticultural Training Center, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$19,105,369	0.6%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
35	CMI Management, LLC Top agencies HUD (Department of Housing and Urban Development) AFRH (Armed Forces Retirement Home) DHS (Department of Homeland Security)	$18,180,552	0.6%	Rank history: #35 in FY2022, #32 in FY2023, #41 in FY2024 and not on the FY2025 list; up 25 since FY2020.
36	Jjll, LLC Top agencies Navy (Department of the Navy)	$18,010,390	0.5%	Rank history: #33 in FY2022, #38 in FY2023, #39 in FY2024 and not on the FY2025 list; unchanged since FY2020.
37	Call Henry Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$16,884,255	0.5%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
38	Environmental Chemical Corporation Through ECC International, LLC Top agencies USAF (Department of the Air Force)	$15,900,000	0.5%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	Remington Arms Company LLC 2 awardees, including Dyncorp International LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$15,168,089	0.5%	Rank history: not on the FY2022–FY2025 lists; down 37 since FY2020.
40	Job Options, Incorporated Top agencies Navy (Department of the Navy)	$14,460,623	0.4%	Rank history: #41 in FY2022, #34 in FY2023, #38 in FY2024 and #35 in FY2025; up 8 since FY2020.
41	Raven Services Corp Top agencies GSA (General Services Administration) DOT (Department of Transportation) NARA (National Archives and Records Administration)	$13,939,643	0.4%	Rank history: #40 in FY2022, #28 in FY2023, #52 in FY2024 and not on the FY2025 list; up 20 since FY2020.
42	Custodial Enterprises GMBH Top agencies DODEA (Department of Defense Education Activity)	$13,384,689	0.4%	Rank history: #42 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
43	KJS Support Services Joint Venture LLC Top agencies Navy (Department of the Navy)	$12,692,095	0.4%	Rank history: #34 in FY2022, #41 in FY2023, #64 in FY2024 and #68 in FY2025; up 12 since FY2020.
44	Government Contracting Resources, Inc. 2 awardees, including Gcr-Mdi LLC Top agencies Navy (Department of the Navy) DISA (Defense Information Systems Agency) Army (Department of the Army)	$12,622,615	0.4%	Rank history: #54 in FY2022, #52 in FY2023, #60 in FY2024 and not on the FY2025 list; down 1 since FY2020.
45	Servicesource Inc. Top agencies WHS (DOD Washington Headquarters Service)	$12,494,056	0.4%	Rank history: #23 in FY2022, #30 in FY2023, #31 in FY2024 and #23 in FY2025; new, not ranked in FY2020.
46	Newimar Sociedad Anonima Top agencies Navy (Department of the Navy)	$12,450,571	0.4%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
47	KJS MP Joint Venture LLC Top agencies Navy (Department of the Navy)	$11,305,132	0.3%	Rank history: #46 in FY2022, #46 in FY2023, not on the FY2024 list and #52 in FY2025; up 4 since FY2020.
48	Mainthia Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$11,125,421	0.3%	Rank history: #36 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
49	Tlingit Haida Tribal Business Corporation 2 awardees, including T&H Services, LLC and Kira Aviation Services LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$10,724,009	0.3%	Rank history: #30 in FY2022, #22 in FY2023, #49 in FY2024 and not on the FY2025 list; up 25 since FY2020.
50	Dsc-Emi Maintenance Solutions, LLC Top agencies Navy (Department of the Navy)	$10,182,953	0.3%	Rank history: #48 in FY2022, #19 in FY2023, #14 in FY2024 and #13 in FY2025; new, not ranked in FY2020.
51	Qbase, LLC Top agencies DOJ (Department of Justice)	$9,800,720	0.3%	Rank history: #99 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
52	Red Point Construction, LLC Top agencies Army (Department of the Army)	$9,350,851	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Diversified Service Contracting, Inc. Top agencies Navy (Department of the Navy)	$9,349,738	0.3%	Rank history: #50 in FY2022, #33 in FY2023, #44 in FY2024 and #33 in FY2025; down 8 since FY2020.
54	Northern Management Services, Inc. Top agencies GSA (General Services Administration) DOJ (Department of Justice) Army (Department of the Army)	$8,831,213	0.3%	Rank history: #64 in FY2022, not on the FY2023 list, #62 in FY2024 and #45 in FY2025; up 50 since FY2020.
55	PAE Holding Corporation Through PAE Korea Limited Top agencies USAF (Department of the Air Force)	$8,829,697	0.3%	Rank history: #83 in FY2022, #44 in FY2023, #58 in FY2024 and not on the FY2025 list; down 41 since FY2020.
56	Akima Facilities Operations LLC Top agencies Navy (Department of the Navy)	$8,807,769	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; up 60 since FY2020.
57	DMC Management Services, LLC Top agencies USAF (Department of the Air Force)	$8,643,155	0.3%	Rank history: #55 in FY2022, #51 in FY2023, #57 in FY2024 and #86 in FY2025; up 18 since FY2020.
58	Portsmouth Mission Alliance, LLC Top agencies DOE (Department of Energy)	$7,919,165	0.2%	Rank history: not on the FY2022–FY2025 lists; up 165 since FY2020.
59	Global Systemized Industry Top agencies USAF (Department of the Air Force)	$7,664,099	0.2%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
60	Triple Canopy Inc. Through Centerra Group, LLC Top agencies Navy (Department of the Navy)	$7,653,005	0.2%	Rank history: #60 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
61	Totally Joined for Achieving Collaborative Techniques (Tjfact), LLC Top agencies Army (Department of the Army)	$7,559,761	0.2%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
62	Cherokee Nation Through Cherokee Nation Red Wing, L.L.C. Top agencies MDA (DOD Missile Defense Agency)	$7,284,686	0.2%	Rank history: #58 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
63	Mec-Fs JV Top agencies Treasury (Department of the Treasury)	$7,258,047	0.2%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
64	Gcr-Dean LLC Top agencies DISA (Defense Information Systems Agency) DHS (Department of Homeland Security)	$7,182,933	0.2%	Rank history: #53 in FY2022, #53 in FY2023, #55 in FY2024 and #74 in FY2025; up 69 since FY2020.
65	KBR Services, LLC Top agencies Navy (Department of the Navy)	$7,115,392	0.2%	Rank history: not on the FY2022 list, #4 in FY2023, #16 in FY2024 and not on the FY2025 list; up 18 since FY2020.
66	Re-Engineered Business Solutions, Inc. Top agencies Army (Department of the Army)	$6,767,215	0.2%	Rank history: #59 in FY2022, #50 in FY2023, #54 in FY2024 and #53 in FY2025; down 4 since FY2020.
67	Acepex Management Corporation Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$6,417,109	0.2%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
68	Fortis Industries LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$6,324,128	0.2%	Rank history: #88 in FY2022, #56 in FY2023, #56 in FY2024 and #63 in FY2025; up 14 since FY2020.
69	Cherokee Nation Aerospace and Defense, L.L.C. Top agencies MDA (DOD Missile Defense Agency)	$6,181,535	0.2%	Rank history: not on the FY2022–FY2025 lists; up 86 since FY2020.
70	Alaska Native Government Services LLC Through Copper River Infrastructure Services LLC Top agencies Army (Department of the Army)	$6,177,983	0.2%	Rank history: #70 in FY2022, #48 in FY2023, #66 in FY2024 and not on the FY2025 list; up 168 since FY2020.
71	Hme, Inc. Top agencies DHS (Department of Homeland Security)	$6,095,561	0.2%	Rank history: #68 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
72	SRM Group, LLC Top agencies Army (Department of the Army)	$5,833,135	0.2%	Rank history: #67 in FY2022, #60 in FY2023, #63 in FY2024 and not on the FY2025 list; up 62 since FY2020.
73	Seres Engineering & Services LLC Top agencies Army (Department of the Army)	$5,766,625	0.2%	Rank history: #77 in FY2022, #67 in FY2023, #73 in FY2024 and #73 in FY2025; up 23 since FY2020.
74	The Ryan Group Inc Through Ryan & Associates, Inc. Top agencies Army (Department of the Army)	$5,741,160	0.2%	Rank history: #75 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 55 since FY2020.
75	NCS / EML Joint Venture, LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration) USDA (Department of Agriculture)	$5,377,884	0.2%	Rank history: #78 in FY2022, #81 in FY2023, #68 in FY2024 and #62 in FY2025; up 12 since FY2020.
76	R & D Maintenance Services Inc. Top agencies Army (Department of the Army)	$5,347,786	0.2%	Rank history: #63 in FY2022, not on the FY2023–FY2024 lists and #54 in FY2025; up 13 since FY2020.
77	High Desert Support Services, LLC Top agencies Army (Department of the Army)	$5,208,350	0.2%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
78	National Facility Services Inc. Top agencies Treasury (Department of the Treasury)	$5,156,250	0.2%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
79	Cambridge International Systems, Inc. Top agencies Army (Department of the Army)	$5,045,124	0.2%	Rank history: #90 in FY2022, #74 in FY2023, #83 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
80	Nihon Highway Service Co. Ltd. Top agencies Navy (Department of the Navy)	$4,956,050	0.2%	Rank history: #85 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
81	Tidewater, Inc. Top agencies Army (Department of the Army)	$4,926,155	0.1%	Rank history: #69 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2020.
82	Hosei Co., Ltd. Top agencies Navy (Department of the Navy)	$4,922,579	0.1%	Rank history: not on the FY2022–FY2024 lists and #92 in FY2025; down 2 since FY2020.
83	CW Group Inc Through CW Resources, Inc. Top agencies Navy (Department of the Navy)	$4,679,018	0.1%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
84	Lanterra LLC Top agencies Army (Department of the Army)	$4,591,304	0.1%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
85	Invicta Defense LLC Top agencies USAF (Department of the Air Force)	$4,539,210	0.1%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
86	C & S Building Services Inc. Top agencies DOI (Department of the Interior)	$4,385,088	0.1%	Rank history: #82 in FY2022, #80 in FY2023, not on the FY2024 list and #90 in FY2025; down 8 since FY2020.
87	The Chenega Corporation 5 awardees, including Chenega Integrated Security Solutions, LLC, Chenega Security & Support Solutions, LLC and Chenega Tri-Services, LLC Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,376,115	0.1%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
88	Bering Straits Native Corporation 2 awardees, including Bering Global Solutions, LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts)	$4,365,755	0.1%	Rank history: #61 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; down 36 since FY2020.
89	Gulfstream Goodwill Industries, Inc. Top agencies Army (Department of the Army)	$4,334,904	0.1%	Rank history: not on the FY2022 list, #95 in FY2023 and not on the FY2024–FY2025 lists; up 79 since FY2020.
90	Handuk Iron-Mine & Construction Co. Ltd Top agencies Army (Department of the Army)	$4,322,948	0.1%	Rank history: #65 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
91	Good-Men Roofing & Construction Inc. Top agencies Army (Department of the Army)	$4,316,063	0.1%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
92	Erica Lane Enterprises Inc. Top agencies DHS (Department of Homeland Security)	$4,081,508	0.1%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
93	Hana Industries, Inc. Top agencies Navy (Department of the Navy) FCC (Federal Communications Commission)	$3,907,075	0.1%	Rank history: not on the FY2022–FY2025 lists; up 63 since FY2020.
94	International Support Group LLC Top agencies DOT (Department of Transportation) Army (Department of the Army)	$3,873,158	0.1%	Rank history: #87 in FY2022, #69 in FY2023, #71 in FY2024 and not on the FY2025 list; up 27 since FY2020.
95	Electronic Systems Services Inc. Top agencies Treasury (Department of the Treasury)	$3,857,004	0.1%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
96	Mitomo Marutaka JV Top agencies Navy (Department of the Navy)	$3,846,756	0.1%	Rank history: #89 in FY2022, #82 in FY2023 and not on the FY2024–FY2025 lists; down 25 since FY2020.
97	Integriward, LLC Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DOJ (Department of Justice)	$3,819,238	0.1%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; down 29 since FY2020.
98	The HP Group LLC 2 awardees, including United Federal Facility Services, LLC Top agencies Navy (Department of the Navy)	$3,760,801	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
99	Tresco Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,693,542	0.1%	Rank history: #98 in FY2022, #84 in FY2023, #92 in FY2024 and not on the FY2025 list; up 104 since FY2020.
100	Worrell Contracting Co Inc. Top agencies VA (Department of Veterans Affairs)	$3,686,982	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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 $3.3 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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