Top 100 Contractors in PSC Z: Maintenance, Repair, Alteration Real Property, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Amentum Services, Inc. 4 awardees, including Central Plateau Cleanup Company, LLC, URS Federal Services International, Inc. and Dyncorp International LLC Top agencies DOE (Department of Energy) DTRA (Defense Threat Reduction Agency) NASA (National Aeronautics and Space Administration)	$462,494,861	2.6%	Rank history: #1 in FY2022, #2 in FY2023, #3 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
2	Alberici-Mortenson A Joint Venture Top agencies Navy (Department of the Navy)	$369,949,779	2.1%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
3	Jacobs Engineering Group Inc. 9 awardees, including Amentum Technology, Inc., Ch2M Hill Plateau Remediation Company and Ch2M Hill Constructors, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) DOE (Department of Energy)	$313,679,792	1.7%	Rank history: #6 in FY2022, #9 in FY2023, #89 in FY2024 and not on the FY2025 list; down 2 since FY2020.
4	Hensel Phelps Construction Co 6 awardees, including Hensel Phelps Services LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) DOJ (Department of Justice)	$259,447,127	1.4%	Rank history: #10 in FY2022, #50 in FY2023, #46 in FY2024 and #29 in FY2025; up 20 since FY2020.
5	Aptim Federal Services LLC 2 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$153,106,057	0.9%	Rank history: #7 in FY2022, #7 in FY2023, #29 in FY2024 and not on the FY2025 list; down 3 since FY2020.
6	J & J Maintenance Inc. 2 awardees, including J&J Germany GMBH Top agencies Army (Department of the Army) DHA (Defense Health Agency) USAF (Department of the Air Force)	$146,886,932	0.8%	Rank history: #3 in FY2022, #8 in FY2023, #4 in FY2024 and #3 in FY2025; up 1 since FY2020.
7	Andritz AG Through Andritz Hydro Corp Top agencies Army (Department of the Army) DOI (Department of the Interior)	$113,959,598	0.6%	Rank history: not on the FY2022 list, #17 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
8	Turner Construction Company 3 awardees, including Sociedad Espanola De Montajes Industriales SA Top agencies HHS (Department of Health and Human Services) SSA (Social Security Administration) DHS (Department of Homeland Security)	$110,442,671	0.6%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 42 since FY2020.
9	Merck & Co. Inc. Through Merck Sharp & Dohme LLC Top agencies HHS (Department of Health and Human Services)	$105,400,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
10	EMCOR Group, Inc. 7 awardees, including Emcor Government Services, Inc., Dynalectric Co and Harry Pepper & Associates Inc. Top agencies GAO (Government Accountability Office) DHA (Defense Health Agency) GSA (General Services Administration)	$101,670,245	0.6%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; up 32 since FY2020.
11	H2O Guam JV Top agencies Navy (Department of the Navy)	$97,995,000	0.5%	Rank history: not on the FY2022 list, #15 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
12	Manson Construction Co. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$97,379,097	0.5%	Rank history: #17 in FY2022, #46 in FY2023, #13 in FY2024 and not on the FY2025 list; up 110 since FY2020.
13	J.e. Mcamis, Inc. Top agencies Army (Department of the Army)	$97,314,009	0.5%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
14	AECOM 7 awardees, including AECOM Technical Services, Inc., URS Group, Inc. and Shimmick Construction Company, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$97,267,800	0.5%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
15	American Engineering Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$93,708,410	0.5%	Rank history: #13 in FY2022, #11 in FY2023, #9 in FY2024 and #15 in FY2025; up 10 since FY2020.
16	Weston Solutions Holdings, Inc. 3 awardees, including Weston Solutions Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$93,703,882	0.5%	Rank history: #23 in FY2022, #1 in FY2023, #1 in FY2024 and not on the FY2025 list; down 3 since FY2020.
17	Rooney Holdings, Inc. Through Manhattan Construction Company LLC Top agencies DLA (Defense Logistics Agency)	$87,092,320	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
18	The Dutra Group Top agencies Army (Department of the Army) Navy (Department of the Navy)	$85,263,170	0.5%	Rank history: not on the FY2022 list, #85 in FY2023, not on the FY2024 list and #92 in FY2025; up 139 since FY2020.
19	Continental Heavy Civil Corp Top agencies Army (Department of the Army) DOI (Department of the Interior)	$84,180,078	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	JE Dunn Construction Group Inc. Through J.e. Dunn Construction Company Top agencies GSA (General Services Administration) USAF (Department of the Air Force) Army (Department of the Army)	$82,603,824	0.5%	Rank history: not on the FY2022–FY2023 lists, #25 in FY2024 and not on the FY2025 list; up 369 since FY2020.
21	RC Construction Co & Millstone Weber A Joint Venture Top agencies Army (Department of the Army)	$81,554,847	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Norfolk Dredging Company Top agencies Army (Department of the Army) Navy (Department of the Navy)	$81,504,759	0.5%	Rank history: #37 in FY2022, #19 in FY2023, not on the FY2024 list and #38 in FY2025; new, not ranked in FY2020.
23	Vectrus Systems Corporation 3 awardees, including Vectrus Federal Services GMBH and V2X Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$75,678,284	0.4%	Rank history: #22 in FY2022, #22 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
24	JX Holdings Inc. 2 awardees, including Nippo Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$74,611,519	0.4%	Rank history: #24 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
25	The Cianbro Companies Through Cianbro Corporation Top agencies Navy (Department of the Navy)	$73,497,393	0.4%	Rank history: not on the FY2022–FY2023 lists, #16 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
26	Arctic Slope Regional Corporation 4 awardees, including Asrc Communications, Ltd., Ais Infrastructure, LLC and Asrc Consulting & Environmental Services, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$70,100,614	0.4%	Rank history: #67 in FY2022, #47 in FY2023, #10 in FY2024 and #10 in FY2025; up 20 since FY2020.
27	Honeywell International Inc. 7 awardees, including Honeywell Building Solutions SES Corp Top agencies GSA (General Services Administration) NARA (National Archives and Records Administration) USDA (Department of Agriculture)	$69,006,643	0.4%	Rank history: #31 in FY2022, #37 in FY2023, not on the FY2024 list and #31 in FY2025; new, not ranked in FY2020.
28	Chugach Alaska Corporation 5 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) NASA (National Aeronautics and Space Administration)	$68,305,307	0.4%	Rank history: #49 in FY2022, #40 in FY2023, #45 in FY2024 and not on the FY2025 list; down 8 since FY2020.
29	CMS Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$66,257,668	0.4%	Rank history: not on the FY2022–FY2023 lists, #35 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
30	C.j. Mahan Construction Company, LLC Top agencies Army (Department of the Army)	$66,201,819	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	The Whiting-Turner Contracting Company Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) Army (Department of the Army)	$65,776,291	0.4%	Rank history: #26 in FY2022, #4 in FY2023, #23 in FY2024 and #86 in FY2025; down 22 since FY2020.
32	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$64,726,055	0.4%	Rank history: not on the FY2022–FY2025 lists; up 168 since FY2020.
33	Afognak Native Corporation 13 awardees, including Alutiiq Commercial Enterprises LLC, Alutiiq Construction Services, LLC and Alutiiq General Contractors, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Treasury (Department of the Treasury)	$63,140,323	0.4%	Rank history: #27 in FY2022 and not on the FY2023–FY2025 lists; down 14 since FY2020.
34	DGG Re Investments LLC Top agencies HUD (Department of Housing and Urban Development)	$61,669,179	0.3%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
35	Heffler Contracting Group Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$61,639,347	0.3%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; up 34 since FY2020.
36	Peter Kiewit Sons', Inc. 3 awardees, including Kiewit Infrastructure West Co and Kiewit Infrastructure South Co Top agencies Navy (Department of the Navy) DOI (Department of the Interior) Army (Department of the Army)	$60,260,549	0.3%	Rank history: not on the FY2022 list, #42 in FY2023, #6 in FY2024 and #25 in FY2025; up 437 since FY2020.
37	Cook Inlet Region Inc. 5 awardees, including Silver Mountain Construction, LLC, Weldin Construction LLC and North Wind Construction Services, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$59,755,359	0.3%	Rank history: not on the FY2022 list, #79 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
38	Herman Construction Group, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$56,933,720	0.3%	Rank history: not on the FY2022 list, #88 in FY2023 and not on the FY2024–FY2025 lists; up 50 since FY2020.
39	General Dynamics Corporation 4 awardees, including General Dynamics Mission Systems, Inc. and General Dynamics Land Systems Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$56,293,872	0.3%	Rank history: #16 in FY2022, #28 in FY2023, #15 in FY2024 and #13 in FY2025; up 19 since FY2020.
40	Skookum Educational Programs Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$55,238,475	0.3%	Rank history: #53 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
41	Atkins Nuclear Secured Holdings Corporation Through Isotek Systems, LLC Top agencies DOE (Department of Energy)	$54,633,150	0.3%	Rank history: #44 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
42	Natives of Kodiak, Incorporated 6 awardees, including Koman Construction, LLC, Koman Government Solutions LLC and Trinity Analysis and Development Corp. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Navy (Department of the Navy)	$52,803,576	0.3%	Rank history: not on the FY2022 list, #83 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2020.
43	Brasfield & Gorrie LLC Top agencies GSA (General Services Administration) DOT (Department of Transportation)	$52,742,124	0.3%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Bristol Bay Native Corporation 5 awardees, including Specpro Environmental Services LLC, Bristol Engineering Services Company, LLC and Bristol General Contractors, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$51,997,092	0.3%	Rank history: not on the FY2022 list, #53 in FY2023, #51 in FY2024 and #72 in FY2025; down 4 since FY2020.
45	Professional Contract Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$51,237,622	0.3%	Rank history: #46 in FY2022, #57 in FY2023, #48 in FY2024 and #51 in FY2025; up 149 since FY2020.
46	The Tatitlek Corporation 4 awardees, including Tatitlek Technologies, LLC and Port Fidalgo Constructors Inc. Top agencies DOS (Department of State) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$50,745,725	0.3%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
47	Great Lakes Dredge & Dock Corporation 2 awardees, including Forgen LLC Top agencies Army (Department of the Army)	$50,454,325	0.3%	Rank history: #12 in FY2022, #10 in FY2023, #2 in FY2024 and #4 in FY2025; down 36 since FY2020.
48	Talion Construction, LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) Navy (Department of the Navy)	$48,124,426	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Mina Petroleum FZE Top agencies DLA (Defense Logistics Agency)	$46,859,368	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Encore Dredging Founding Partners LLC Through Inland Dredging Company, L.L.C. Top agencies Army (Department of the Army)	$46,188,264	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Four Tribes Enterprises, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) USDA (Department of Agriculture)	$45,771,324	0.3%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
52	Integrated Construction Enterprises Inc. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) DOS (Department of State)	$45,032,338	0.3%	Rank history: not on the FY2022–FY2025 lists; up 115 since FY2020.
53	Dawson Enterprises, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$44,683,806	0.2%	Rank history: #56 in FY2022, #76 in FY2023, not on the FY2024 list and #47 in FY2025; down 14 since FY2020.
54	Nova Global Supply and Services LLC 2 awardees, including Valiant Government Services LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) Navy (Department of the Navy)	$44,597,888	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 22 since FY2020.
55	Grunley Construction Co., Inc. Top agencies Smithsonian (Smithsonian Institution) DOI (Department of the Interior) USDA (Department of Agriculture)	$44,381,796	0.2%	Rank history: not on the FY2022 list, #14 in FY2023, #12 in FY2024 and #88 in FY2025; down 40 since FY2020.
56	Sourceamerica Top agencies Army (Department of the Army)	$44,291,513	0.2%	Rank history: #38 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
57	Luhr Bros., Inc. Top agencies Army (Department of the Army)	$44,083,856	0.2%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
58	Goldbelt, Incorporated 4 awardees, including Goldbelt Operations Support Services, LLC and Facility Support Services LLC Top agencies DOE (Department of Energy) Army (Department of the Army)	$43,372,567	0.2%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
59	Facility Services Management, Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency) USAF (Department of the Air Force)	$43,021,383	0.2%	Rank history: #70 in FY2022, #16 in FY2023, #20 in FY2024 and #20 in FY2025; down 2 since FY2020.
60	Asturian Group, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$41,992,550	0.2%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
61	Bering Straits Native Corporation 5 awardees, including Stampede Ventures, Inc., Eagle Eye Electric LLC and Bering Global Solutions, LLC Top agencies WHS (DOD Washington Headquarters Service) DHS (Department of Homeland Security) Army (Department of the Army)	$41,452,139	0.2%	Rank history: #51 in FY2022, #65 in FY2023, #82 in FY2024 and #43 in FY2025; up 51 since FY2020.
62	Puyenpa Services, LLC Top agencies WHS (DOD Washington Headquarters Service) GSA (General Services Administration) Treasury (Department of the Treasury)	$41,115,675	0.2%	Rank history: not on the FY2022–FY2025 lists; up 333 since FY2020.
63	HHI Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$40,366,958	0.2%	Rank history: #98 in FY2022, #25 in FY2023, #38 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
64	Doyon Government Contracting Inc. 8 awardees, including Doyon Management Services, LLC, Doyon Project Services, LLC and Doyon Technical Services, LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) DHS (Department of Homeland Security)	$39,932,952	0.2%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; down 34 since FY2020.
65	Obayashi Corporation 2 awardees, including Kraemer North America LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOS (Department of State)	$39,637,813	0.2%	Rank history: not on the FY2022 list, #86 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
66	Guarantee Interiors, Inc. Top agencies VA (Department of Veterans Affairs)	$39,604,178	0.2%	Rank history: not on the FY2022–FY2025 lists; up 97 since FY2020.
67	Big-D Construction Corp Top agencies GSA (General Services Administration)	$39,420,504	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Tetra Tech-Maytag Aircraft Corporation Joint Venture Top agencies DLA (Defense Logistics Agency)	$38,742,582	0.2%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
69	Wood Environment & Infrastructure Solutions Inc. 4 awardees, including WSP USA Environment & Infrastructure Inc., WSP E&Is GMBH and C E C Controls Co, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$38,062,219	0.2%	Rank history: #80 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; up 281 since FY2020.
70	Ahtna, Incorporated 6 awardees, including Ahtna Construction & Primary Products Company, LLC, Ahtna Environmental, Inc. and Ahtna Design-Build Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$37,884,590	0.2%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
71	ESA South, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$37,628,150	0.2%	Rank history: not on the FY2022 list, #21 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
72	Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit Through Bundesministerium FÜR Umwelt, Naturschutz UND Reaktorsicherheit Top agencies Army (Department of the Army)	$37,598,662	0.2%	Rank history: not on the FY2022–FY2025 lists; down 38 since FY2020.
73	Industries for the Blind and Visually Impaired, Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force)	$36,761,024	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Asturian-Consigli JV, LLC Top agencies Navy (Department of the Navy) DOI (Department of the Interior) GSA (General Services Administration)	$36,353,472	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Bauer AG Through Bauer Foundation Corp Top agencies Army (Department of the Army)	$36,039,308	0.2%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
76	Conti Enterprises Inc. Through Conti Federal Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$35,802,479	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Black Construction / Mace International Joint Venture Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$35,172,146	0.2%	Rank history: not on the FY2022–FY2023 lists, #42 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
78	Ameresco Inc. 2 awardees, including Ameresco Select, Inc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$34,486,944	0.2%	Rank history: not on the FY2022–FY2025 lists; down 47 since FY2020.
79	L.s. Black Constructors, LLC Top agencies Army (Department of the Army)	$34,276,691	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Siemens Aktiengesellschaft 3 awardees, including Siemens Government Technologies Inc., Siemens Industry Inc. and Siemens Medical Solutions Usa, Inc. Top agencies Navy (Department of the Navy) GSA (General Services Administration) HHS (Department of Health and Human Services)	$33,596,004	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Sumitomo Heavy Industries, Ltd. 2 awardees, including Sumiju Yokosuka Kogyo Co., Ltd. and Sumitomo (Shi) Cryogenics of America Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$33,015,127	0.2%	Rank history: not on the FY2022 list, #77 in FY2023 and not on the FY2024–FY2025 lists; up 46 since FY2020.
82	Web, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) GSA (General Services Administration)	$32,967,218	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Brantley Construction Services, LLC Top agencies Navy (Department of the Navy)	$32,937,066	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Cox Construction Co Top agencies DHS (Department of Homeland Security)	$32,749,158	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	The Christman Company Top agencies GSA (General Services Administration) DOI (Department of the Interior)	$32,555,908	0.2%	Rank history: not on the FY2022–FY2025 lists; up 215 since FY2020.
86	The Chenega Corporation 5 awardees, including Chenega Worldwide Support, LLC, Chenega Tri-Services, LLC and Chenega Facilities Management LLC Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior) DHS (Department of Homeland Security)	$32,475,056	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	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)	$32,155,804	0.2%	Rank history: #42 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
88	Leebcor Services LLC Top agencies Navy (Department of the Navy)	$32,042,052	0.2%	Rank history: not on the FY2022–FY2025 lists; up 225 since FY2020.
89	Dubuque Barge and Fleeting Service Co Top agencies Army (Department of the Army)	$32,036,241	0.2%	Rank history: not on the FY2022–FY2025 lists; up 173 since FY2020.
90	Afci-Cci JV One LLC Top agencies VA (Department of Veterans Affairs)	$31,392,387	0.2%	Rank history: not on the FY2022–FY2025 lists; up 103 since FY2020.
91	C.A.R.P.I. U.S.a. Inc. Top agencies DOI (Department of the Interior)	$31,247,964	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Georgia TECH Research Corp Through Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$31,247,500	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Sjc-Bvil LLC Top agencies Navy (Department of the Navy)	$30,851,681	0.2%	Rank history: not on the FY2022–FY2025 lists; up 165 since FY2020.
94	Sedona- Nasco Joint Venture Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$30,812,599	0.2%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
95	King & George, LLC 2 awardees, including Invicta Global, LLC Top agencies GSA (General Services Administration) USAF (Department of the Air Force) Army (Department of the Army)	$30,762,382	0.2%	Rank history: #73 in FY2022, not on the FY2023–FY2024 lists and #82 in FY2025; up 85 since FY2020.
96	Jll-Midnight Sun Ifms LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$30,669,370	0.2%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
97	Swan Contracting LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$30,366,051	0.2%	Rank history: not on the FY2022–FY2025 lists; up 330 since FY2020.
98	Turner Strategic Technologies, LLC Top agencies Navy (Department of the Navy)	$30,021,218	0.2%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; up 76 since FY2020.
99	Truebeck Construction, Inc. Top agencies GSA (General Services Administration)	$29,920,802	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	C J W Construction, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$29,910,345	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

Rankings for the codes under PSC Z

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 $18 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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