Top 100 Contractors in NAICS 56121: Facilities Support Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Honeywell International Inc. 7 awardees, including National Technology & Engineering Solutions of Sandia, LLC, Honeywell Federal Manufacturing & Technologies, LLC and Honeywell Building Solutions SES Corp Top agencies DOE (Department of Energy) Army (Department of the Army) VA (Department of Veterans Affairs)	$5,995,686,309	16.8%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 3 since FY2020.
2	Triad National Security, LLC Top agencies DOE (Department of Energy)	$3,955,926,494	11.1%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since FY2020.
3	Kbr, Inc. 3 awardees, including KBR Services, LLC and KBR Wyle Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$2,899,302,370	8.1%	Rank history: #3 in FY2022, #50 in FY2023, #53 in FY2024 and not on the FY2025 list; up 5 since FY2020.
4	Consolidated Nuclear Security, LLC Top agencies DOE (Department of Energy)	$2,607,717,690	7.3%	Rank history: #4 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; down 1 since FY2020.
5	Ut-Battelle LLC Top agencies DOE (Department of Energy)	$2,266,992,542	6.3%	Rank history: #5 in FY2022, #5 in FY2023, #4 in FY2024 and #3 in FY2025; unchanged since FY2020.
6	Vectrus Systems Corporation 6 awardees, including V2X Systems LLC, Vectrus Federal Services GMBH and Vectrus Services A / S Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,739,473,006	4.9%	Rank history: #7 in FY2022, #4 in FY2023, #16 in FY2024 and not on the FY2025 list; up 1 since FY2020.
7	Savannah River Nuclear Solutions LLC Top agencies DOE (Department of Energy)	$1,663,520,279	4.7%	Rank history: #6 in FY2022, #6 in FY2023, #23 in FY2024 and not on the FY2025 list; down 1 since FY2020.
8	Amentum Services, Inc. 4 awardees, including Dyncorp International LLC and URS Federal Services International, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOS (Department of State)	$892,780,867	2.5%	Rank history: #8 in FY2022, #10 in FY2023, #8 in FY2024 and not on the FY2025 list; up 38 since FY2020.
9	Mission Support & Test Services LLC Top agencies DOE (Department of Energy)	$854,697,036	2.4%	Rank history: #9 in FY2022, #9 in FY2023, #9 in FY2024 and #10 in FY2025; up 2 since FY2020.
10	The GEO Group, Inc. 4 awardees, including B.i. Incorporated, GEO Secure Services, LLC and Cornell Companies, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$549,917,748	1.5%	Rank history: #11 in FY2022, #13 in FY2023, #12 in FY2024 and #12 in FY2025; up 2 since FY2020.
11	Fluor Corporation 6 awardees, including Fluor Intercontinental, Inc., Fluor Federal Petroleum Operations, LLC and Fluor Amec II, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOE (Department of Energy)	$527,533,707	1.5%	Rank history: #10 in FY2022, #15 in FY2023, #5 in FY2024 and #5 in FY2025; down 1 since FY2020.
12	BAE Systems PLC 3 awardees, including BAE Systems Ordnance Systems Inc. and BAE Systems Technology Solutions & Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$453,735,569	1.3%	Rank history: #23 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
13	Cherokee Nation 4 awardees, including Cherokee Nation Management & Consulting, L.l.c.., Cherokee Federal Solutions, L.L.C. and Cherokee Nation Strategic Programs, L.L.C. Top agencies DOS (Department of State) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$338,640,911	0.9%	Rank history: not on the FY2022–FY2025 lists; up 104 since FY2020.
14	AECOM 3 awardees, including Nuclear Waste Partnership LLC and AECOM Technical Services, Inc. Top agencies DOE (Department of Energy) Navy (Department of the Navy)	$337,329,983	0.9%	Rank history: #12 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
15	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc., Mission Support Alliance, LLC and Leidos Biomedical Research Inc. Top agencies NSF (National Science Foundation) DOE (Department of Energy) Army (Department of the Army)	$315,434,336	0.9%	Rank history: #16 in FY2022, #17 in FY2023, #17 in FY2024 and #14 in FY2025; down 2 since FY2020.
16	PAE Government Services Inc. 5 awardees, including Metis Solutions, LLC, Amentum Design and Facility Management and PAE Management Services GMBH Top agencies DOS (Department of State) USAF (Department of the Air Force) Navy (Department of the Navy)	$300,337,392	0.8%	Rank history: #13 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
17	Cotton Commercial Usa, Inc. Top agencies DHS (Department of Homeland Security)	$259,324,897	0.7%	Rank history: not on the FY2022–FY2023 lists, #34 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
18	Arctic Slope Regional Corporation 4 awardees, including Asrc Communications, Ltd., Asrc Federal Field Services, LLC and Arctic Slope Technical Services, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$233,028,994	0.7%	Rank history: #19 in FY2022, #19 in FY2023, #21 in FY2024 and #13 in FY2025; up 13 since FY2020.
19	Jacobs Engineering Group Inc. 3 awardees, including Amentum Technology, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$227,257,665	0.6%	Rank history: #17 in FY2022, #18 in FY2023, #57 in FY2024 and not on the FY2025 list; up 3 since FY2020.
20	Syncom Space Services LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) HUD (Department of Housing and Urban Development)	$182,459,854	0.5%	Rank history: #20 in FY2022, #22 in FY2023, #48 in FY2024 and not on the FY2025 list; unchanged since FY2020.
21	Afognak Native Corporation 11 awardees, including Alutiiq Commercial Enterprises LLC, Alutiiq Information Management, LLC and "Alutiiq Logistics & Maintenance Services, Llc" Top agencies USAF (Department of the Air Force) DOS (Department of State) Navy (Department of the Navy)	$169,521,573	0.5%	Rank history: #27 in FY2022, #30 in FY2023, #86 in FY2024 and #55 in FY2025; up 2 since FY2020.
22	Pride Industries Top agencies Army (Department of the Army) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$165,799,122	0.5%	Rank history: #21 in FY2022, #21 in FY2023, #24 in FY2024 and #34 in FY2025; up 3 since FY2020.
23	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)	$151,256,758	0.4%	Rank history: #52 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
24	Remington Arms Company LLC 3 awardees, including Dyncorp International LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$144,308,130	0.4%	Rank history: not on the FY2022–FY2025 lists; down 15 since FY2020.
25	Chugach Alaska Corporation 6 awardees, including Wolf Creek Federal Services LLC, Defense Base Services, LLC and Chugach Consolidated Solutions, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$137,838,176	0.4%	Rank history: #26 in FY2022, #23 in FY2023, #42 in FY2024 and #98 in FY2025; down 4 since FY2020.
26	J & J Maintenance Inc. Top agencies Army (Department of the Army) DECA (Defense Commissary Agency) USAF (Department of the Air Force)	$129,545,071	0.4%	Rank history: #22 in FY2022, #25 in FY2023, #28 in FY2024 and #24 in FY2025; up 1 since FY2020.
27	Nana Regional Corporation Inc 12 awardees, including Akima Support Operations, LLC, Akima Intra-Data, LLC and Akima Logistics Services LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$126,953,968	0.4%	Rank history: #29 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
28	Skookum Educational Programs Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$126,597,626	0.4%	Rank history: #28 in FY2022, #26 in FY2023, #26 in FY2024 and #21 in FY2025; up 1 since FY2020.
29	Michael Baker International, LLC Through Sallyport Global Holdings Inc. Top agencies USAF (Department of the Air Force)	$117,600,000	0.3%	Rank history: #14 in FY2022, #16 in FY2023, #19 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
30	B.i. Incorporated Top agencies DHS (Department of Homeland Security)	$114,083,727	0.3%	Rank history: not on the FY2022–FY2025 lists; up 36 since FY2020.
31	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)	$108,544,002	0.3%	Rank history: #25 in FY2022, #24 in FY2023, #37 in FY2024 and not on the FY2025 list; up 3 since FY2020.
32	EMCOR Group, Inc. Through Emcor Government Services, Inc. Top agencies GAO (Government Accountability Office) GSA (General Services Administration) Army (Department of the Army)	$102,280,848	0.3%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
33	Dzsp 21 LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$99,477,912	0.3%	Rank history: #30 in FY2022, #29 in FY2023, #91 in FY2024 and not on the FY2025 list; down 5 since FY2020.
34	The Chenega Corporation 6 awardees, including Chenega Facilities Management LLC, Chenega Tri-Services, LLC and Chenega Worldwide Support, LLC Top agencies Army (Department of the Army) Treasury (Department of the Treasury) USAF (Department of the Air Force)	$92,750,995	0.3%	Rank history: #32 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; up 31 since FY2020.
35	Loyalty Support Services Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$88,507,192	0.2%	Rank history: #31 in FY2022, #34 in FY2023, #31 in FY2024 and #15 in FY2025; up 1 since FY2020.
36	Computer Sciences Corporation Through PAE Applied Technologies LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$86,070,279	0.2%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
37	Amentum Spaceport LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$84,735,790	0.2%	Rank history: not on the FY2022–FY2023 lists, #63 in FY2024 and not on the FY2025 list; up 2 since FY2020.
38	Professional Contract Services, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$82,635,804	0.2%	Rank history: #34 in FY2022, #36 in FY2023, #27 in FY2024 and #20 in FY2025; up 4 since FY2020.
39	KBR Diego Garcia, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$77,829,946	0.2%	Rank history: #50 in FY2022, #52 in FY2023, #54 in FY2024 and #53 in FY2025; up 20 since FY2020.
40	Brillient Corporation Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$76,850,440	0.2%	Rank history: not on the FY2022 list, #44 in FY2023, #49 in FY2024 and #40 in FY2025; up 45 since FY2020.
41	Management & Training Corporation Top agencies DOJ (Department of Justice)	$76,062,359	0.2%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
42	Corecivic, Inc. Top agencies DOJ (Department of Justice)	$74,528,194	0.2%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
43	Aptim Federal Services LLC 2 awardees, including High Desert Support Services, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$71,305,263	0.2%	Rank history: #33 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; up 68 since FY2020.
44	Technica LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$66,954,747	0.2%	Rank history: #56 in FY2022, #63 in FY2023, #72 in FY2024 and not on the FY2025 list; down 4 since FY2020.
45	Facility Services Management, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) NARA (National Archives and Records Administration)	$66,175,829	0.2%	Rank history: #40 in FY2022, #35 in FY2023, #36 in FY2024 and #60 in FY2025; unchanged since FY2020.
46	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)	$61,781,705	0.2%	Rank history: #38 in FY2022, #43 in FY2023, #66 in FY2024 and #54 in FY2025; up 33 since FY2020.
47	Nuclear Waste Partnership LLC Top agencies DOE (Department of Energy)	$60,619,531	0.2%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
48	Tiya Services, L.L.C. Top agencies Army (Department of the Army)	$60,091,915	0.2%	Rank history: #42 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
49	General Dynamics Corporation 4 awardees, including General Dynamics Mission Systems, Inc. and General Dynamics Land Systems Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$58,301,935	0.2%	Rank history: #18 in FY2022, #8 in FY2023, #15 in FY2024 and #16 in FY2025; up 8 since FY2020.
50	VS2 LLC Top agencies Army (Department of the Army)	$58,205,033	0.2%	Rank history: not on the FY2022–FY2025 lists; up 33 since FY2020.
51	The Tatitlek Corporation Through Tatitlek Technologies, LLC Top agencies DOS (Department of State)	$56,423,912	0.2%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
52	Nova Global Supply and Services LLC 4 awardees, including Valiant Government Services LLC, Valiant / Alca JV LLC and Valiant Global Defense Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$53,756,059	0.2%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 18 since FY2020.
53	Arctec Alaska JV Top agencies USAF (Department of the Air Force)	$52,116,904	0.1%	Rank history: #44 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
54	The Day & Zimmermann Group, Inc. Through SOC Nevada LLC Top agencies Army (Department of the Army)	$49,331,642	0.1%	Rank history: #75 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
55	Sourceamerica Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DOT (Department of Transportation)	$47,196,415	0.1%	Rank history: #41 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
56	Koa Lani JV LLC Top agencies Navy (Department of the Navy)	$45,599,730	0.1%	Rank history: #36 in FY2022, #42 in FY2023, #47 in FY2024 and #38 in FY2025; new, not ranked in FY2020.
57	Winnebago Tribe of Nebraska Through HCI Management Services Company Top agencies DOS (Department of State)	$44,904,528	0.1%	Rank history: #74 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2020.
58	Pegasus Support Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$44,467,359	0.1%	Rank history: #48 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
59	Johnson Controls Security Solutions LLC 7 awardees, including Johnson Controls Government Systems, LLC, Johnson Controls, Inc. and Johnson Controls Building Automation Systems, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$43,848,990	0.1%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
60	County of Reeves Top agencies DOJ (Department of Justice)	$42,440,622	0.1%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
61	Tsay Professional Services, Inc. Top agencies Army (Department of the Army) DOE (Department of Energy)	$42,260,745	0.1%	Rank history: #53 in FY2022, #84 in FY2023, not on the FY2024 list and #94 in FY2025; up 1 since FY2020.
62	WE2 Support Services 8A JV LLC Top agencies DOE (Department of Energy)	$39,110,341	0.1%	Rank history: #60 in FY2022, #55 in FY2023, #67 in FY2024 and #99 in FY2025; up 29 since FY2020.
63	Four Seasons Environmental Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$38,238,977	0.1%	Rank history: #57 in FY2022, #60 in FY2023, #62 in FY2024 and #45 in FY2025; up 15 since FY2020.
64	AC First, LLC Top agencies Army (Department of the Army)	$38,119,485	0.1%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
65	Techflow, Inc. Through Techflow Mission Support, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$37,111,416	0.1%	Rank history: #58 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
66	Choctaw Nation of Oklahoma Through Choctaw Defense Services Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$34,852,811	0.1%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 50 since FY2020.
67	American Ordnance LLC Top agencies Army (Department of the Army)	$33,765,305	0.1%	Rank history: #45 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; down 32 since FY2020.
68	Battelle Memorial Institute Top agencies NSF (National Science Foundation)	$33,728,517	0.1%	Rank history: #51 in FY2022, #61 in FY2023, #64 in FY2024 and #62 in FY2025; up 62 since FY2020.
69	Active Deployment Systems, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$32,654,337	0.1%	Rank history: not on the FY2022–FY2025 lists; down 16 since FY2020.
70	Swift & Staley Inc. Top agencies DOE (Department of Energy)	$32,281,855	0.1%	Rank history: #54 in FY2022, #74 in FY2023, #71 in FY2024 and #84 in FY2025; down 23 since FY2020.
71	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)	$31,945,021	0.1%	Rank history: #62 in FY2022, #47 in FY2023, #45 in FY2024 and #30 in FY2025; up 51 since FY2020.
72	Union Station Venture, Ltd. 2 awardees, including Jones Lang Lasalle Americas, Inc. Top agencies GSA (General Services Administration) DECA (Defense Commissary Agency) AOUSC (Administrative Office of the U.S. Courts)	$31,464,468	0.1%	Rank history: #47 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
73	Cook Inlet Region Inc. 2 awardees, including Portsmouth Mission Alliance, LLC and OSC Technical Solutions, LLC Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$30,861,566	0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
74	Chugach Technical Solutions LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$30,783,187	0.1%	Rank history: not on the FY2022–FY2025 lists; up 40 since FY2020.
75	Jll-Midnight Sun Ifms LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$30,672,678	0.1%	Rank history: #68 in FY2022, #87 in FY2023, #90 in FY2024 and #70 in FY2025; up 24 since FY2020.
76	Siemens Aktiengesellschaft 2 awardees, including Siemens Industry Inc. and Siemens Energy Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$30,317,702	0.1%	Rank history: #81 in FY2022, #82 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
77	Phoenix Management Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) GSA (General Services Administration)	$29,322,625	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
78	CMI Management, LLC Top agencies DHS (Department of Homeland Security) HUD (Department of Housing and Urban Development) AFRH (Armed Forces Retirement Home)	$28,730,307	0.1%	Rank history: #72 in FY2022, #53 in FY2023, #85 in FY2024 and not on the FY2025 list; up 59 since FY2020.
79	LB & B Associates Inc. Top agencies NARA (National Archives and Records Administration) GSA (General Services Administration) DMA (Defense Media Activity)	$28,404,279	0.1%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; down 7 since FY2020.
80	Alcyon Technical Services (Ats) JV, LLC Top agencies NASA (National Aeronautics and Space Administration)	$27,432,514	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
81	Native Energy & Technology Inc. Top agencies DHS (Department of Homeland Security) EPA (Environmental Protection Agency) DHA (Defense Health Agency)	$27,007,709	0.1%	Rank history: #86 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
82	L3Harris Technologies, Inc. 2 awardees, including Manu KAI LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$26,917,901	0.1%	Rank history: not on the FY2022–FY2025 lists; down 15 since FY2020.
83	Golden Wolf, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) Commerce (Department of Commerce)	$26,644,354	0.1%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; up 102 since FY2020.
84	The Logistics Co Incorporated Top agencies Army (Department of the Army)	$26,590,730	0.1%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
85	Servicesource Inc. Top agencies WHS (DOD Washington Headquarters Service) DOT (Department of Transportation) USDA (Department of Agriculture)	$26,537,709	0.1%	Rank history: #66 in FY2022, not on the FY2023 list, #95 in FY2024 and #86 in FY2025; up 3 since FY2020.
86	Triple Canopy Inc. 4 awardees, including Centerra Integrated Facilities Services, LLC, Centerra Group, LLC and Centerra Integrated Services GMBH Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$25,573,301	0.1%	Rank history: #63 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
87	R & D Maintenance Services Inc. Top agencies Army (Department of the Army)	$25,567,397	0.1%	Rank history: #73 in FY2022, not on the FY2023–FY2024 lists and #65 in FY2025; up 2 since FY2020.
88	Raven Services Corp Top agencies GSA (General Services Administration) DOT (Department of Transportation) NARA (National Archives and Records Administration)	$25,306,666	0.1%	Rank history: #80 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; up 39 since FY2020.
89	Criterion Corporation Top agencies USAF (Department of the Air Force)	$24,613,932	0.1%	Rank history: #77 in FY2022, #100 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
90	Government Contracting Resources, Inc. 2 awardees, including Gcr-Mdi LLC Top agencies Navy (Department of the Navy) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$24,246,442	0.1%	Rank history: #94 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
91	Pae-Perini LLC Top agencies USAF (Department of the Air Force)	$24,194,932	0.1%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
92	Leidos, Inc. Top agencies NSF (National Science Foundation)	$24,012,277	0.1%	Rank history: not on the FY2022–FY2025 lists; down 59 since FY2020.
93	Weston Solutions Holdings, Inc. Through Weston Solutions, Inc. Top agencies DLA (Defense Logistics Agency) EPA (Environmental Protection Agency)	$23,933,727	0.1%	Rank history: #46 in FY2022, #40 in FY2023, #46 in FY2024 and #77 in FY2025; up 31 since FY2020.
94	Muscogee Creek Nation Through Muscogee International LLC Top agencies DOS (Department of State)	$23,672,900	0.1%	Rank history: not on the FY2022–FY2025 lists; up 79 since FY2020.
95	Mno-Bmadsen Through Seven Generations Architecture & Engineering LLC Top agencies Army (Department of the Army)	$22,932,261	0.1%	Rank history: not on the FY2022–FY2025 lists; up 56 since FY2020.
96	Pensacola Bay Support Services LLC Top agencies Navy (Department of the Navy)	$22,901,149	0.1%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
97	Kings Bay Support Services, LLC Top agencies Navy (Department of the Navy)	$22,811,798	0.1%	Rank history: not on the FY2022–FY2025 lists; down 29 since FY2020.
98	Re-Engineered Business Solutions, Inc. Top agencies Army (Department of the Army)	$22,409,206	0.1%	Rank history: not on the FY2022 list, #95 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
99	Tatitlek Training Services, Inc. Top agencies Army (Department of the Army)	$21,417,333	0.1%	Rank history: not on the FY2022–FY2025 lists; up 27 since FY2020.
100	KBR Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$21,076,623	0.1%	Rank history: not on the FY2022 list, #7 in FY2023, #13 in FY2024 and not on the FY2025 list; up 15 since FY2020.

Rankings for the codes under NAICS 56121

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 $35.7 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.

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