Top 100 Contractors in PSC Z: Maintenance, Repair, Alteration Real Property, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Weston Solutions Holdings, Inc. 3 awardees, including Weston Solutions Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,136,913,842	4.7%	Rank history: #16 in FY2021, #23 in FY2022, #1 in FY2024 and not on the FY2025 list; up 22 since FY2022.
2	Amentum Services, Inc. 4 awardees, including Central Plateau Cleanup Company, LLC and URS Federal Services International, Inc. Top agencies DOE (Department of Energy) DTRA (Defense Threat Reduction Agency) NASA (National Aeronautics and Space Administration)	$571,791,838	2.3%	Rank history: #1 in FY2021, #1 in FY2022, #3 in FY2024 and not on the FY2025 list; down 1 since FY2022.
3	ACS Actividades DE Construccion Y Servicios SA Through Turner Construction Company Top agencies Army (Department of the Army) SSA (Social Security Administration) DHS (Department of Homeland Security)	$391,151,086	1.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
4	The Whiting-Turner Contracting Company Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$366,119,994	1.5%	Rank history: #31 in FY2021, #26 in FY2022, #23 in FY2024 and #86 in FY2025; up 22 since FY2022.
5	Kiewit-Alberici Siop Macc AJV Top agencies Navy (Department of the Navy)	$325,073,120	1.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #9 in FY2025; new.
6	Structsure Projects Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) DOT (Department of Transportation)	$253,162,516	1.0%	Rank history: not on the FY2021 list, #25 in FY2022, #27 in FY2024 and #17 in FY2025; up 19 since FY2022.
7	Aptim Federal Services LLC 2 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$201,926,903	0.8%	Rank history: #5 in FY2021, #7 in FY2022, #29 in FY2024 and not on the FY2025 list; unchanged since FY2022.
8	J & J Maintenance Inc. 3 awardees, including J&J and Alms Mission Support Solutions, LLC and J&J Germany GMBH Top agencies Army (Department of the Army) DHA (Defense Health Agency) DECA (Defense Commissary Agency)	$200,557,673	0.8%	Rank history: #6 in FY2021, #3 in FY2022, #4 in FY2024 and #3 in FY2025; down 5 since FY2022.
9	Jacobs Engineering Group Inc. 9 awardees, including Amentum Technology, Inc., Ch2M Hill Constructors, Inc. and Jacobs Project Management Co Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) GAO (Government Accountability Office)	$199,218,633	0.8%	Rank history: #3 in FY2021, #6 in FY2022, #89 in FY2024 and not on the FY2025 list; down 3 since FY2022.
10	Great Lakes Dredge & Dock Corporation 2 awardees Top agencies Army (Department of the Army)	$180,953,324	0.7%	Rank history: #47 in FY2021, #12 in FY2022, #2 in FY2024 and #4 in FY2025; up 2 since FY2022.
11	American Engineering Corporation 2 awardees, including Oshima Shokai Co., Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$177,361,610	0.7%	Rank history: #15 in FY2021, #13 in FY2022, #9 in FY2024 and #15 in FY2025; up 2 since FY2022.
12	Guyco Inc Top agencies Army (Department of the Army)	$167,209,500	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	RQ Construction, LLC Top agencies Navy (Department of the Navy)	$163,804,883	0.7%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #6 in FY2025; up 97 since FY2022.
14	Grunley Construction Co., Inc. Top agencies Army (Department of the Army) Smithsonian (Smithsonian Institution) NARA (National Archives and Records Administration)	$158,350,872	0.7%	Rank history: #55 in FY2021, not on the FY2022 list, #12 in FY2024 and #88 in FY2025; up 369 since FY2022.
15	H2O Guam JV Top agencies Navy (Department of the Navy)	$138,452,704	0.6%	Rank history: #11 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
16	Facility Services Management, Inc. 2 awardees, including FSI Construction, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) NARA (National Archives and Records Administration)	$125,644,273	0.5%	Rank history: #59 in FY2021, #70 in FY2022, #20 in FY2024 and #20 in FY2025; up 54 since FY2022.
17	Andritz AG Through Andritz Hydro Corp Top agencies Army (Department of the Army) DOI (Department of the Interior)	$123,462,973	0.5%	Rank history: #7 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 351 since FY2022.
18	Messer Construction Co Top agencies Army (Department of the Army) GSA (General Services Administration)	$119,372,592	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 344 since FY2022.
19	Norfolk Dredging Company Top agencies Army (Department of the Army) Navy (Department of the Navy)	$117,641,829	0.5%	Rank history: #22 in FY2021, #37 in FY2022, not on the FY2024 list and #38 in FY2025; up 18 since FY2022.
20	Consigli Holdings Inc. Through Consigli Construction Co., Inc. Top agencies GSA (General Services Administration) DOI (Department of the Interior) Navy (Department of the Navy)	$108,812,066	0.4%	Rank history: not on the FY2021 list, #61 in FY2022, #18 in FY2024 and not on the FY2025 list; up 41 since FY2022.
21	ESA South, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$107,657,449	0.4%	Rank history: #71 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 140 since FY2022.
22	Vectrus Systems Corporation 2 awardees, including Vectrus Federal Services GMBH and V2X Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DHA (Defense Health Agency)	$105,930,833	0.4%	Rank history: #23 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
23	Paragon Professional Services LLC Top agencies Army (Department of the Army) EPA (Environmental Protection Agency)	$99,625,701	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	R.a. Burch Construction Co., Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$98,921,210	0.4%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2024 and not on the FY2025 list; new.
25	HHI Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce)	$95,266,838	0.4%	Rank history: #63 in FY2021, #98 in FY2022, #38 in FY2024 and not on the FY2025 list; up 73 since FY2022.
26	Olgoonik Enterprises, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Commerce (Department of Commerce)	$92,206,518	0.4%	Rank history: not on the FY2021 list, #69 in FY2022, #37 in FY2024 and #34 in FY2025; up 43 since FY2022.
27	Harper Construction Company, Inc. Top agencies Navy (Department of the Navy)	$91,475,412	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 88 since FY2022.
28	General Dynamics Corporation 4 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Land Systems Inc. and General Dynamics Information Technology, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$81,428,552	0.3%	Rank history: #39 in FY2021, #16 in FY2022, #15 in FY2024 and #13 in FY2025; down 12 since FY2022.
29	Sgjv, LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$81,159,763	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 140 since FY2022.
30	Tutor Perini Corporation 2 awardees, including Perini Management Services, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$80,419,983	0.3%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and not on the FY2025 list; new.
31	Union Station Venture, Ltd. Through Jones Lang Lasalle Americas, Inc. Top agencies GSA (General Services Administration) DECA (Defense Commissary Agency) DHS (Department of Homeland Security)	$79,976,488	0.3%	Rank history: #87 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
32	JX Holdings Inc. 2 awardees, including Nippo Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DODEA (Department of Defense Education Activity)	$75,236,405	0.3%	Rank history: #24 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
33	Central Plateau Cleanup Company, LLC Top agencies DOE (Department of Energy)	$74,906,529	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	AC JV One LLC Top agencies VA (Department of Veterans Affairs)	$74,048,541	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 263 since FY2022.
35	Ross Group Construction Corporation, LLC Top agencies Army (Department of the Army) GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts)	$72,362,955	0.3%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and not on the FY2025 list; up 371 since FY2022.
36	Signature Renovations LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) WHS (DOD Washington Headquarters Service)	$72,207,109	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 150 since FY2022.
37	Honeywell International Inc. 3 awardees, including Honeywell Building Solutions SES Corp Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) NARA (National Archives and Records Administration)	$71,921,248	0.3%	Rank history: #27 in FY2021, #31 in FY2022, not on the FY2024 list and #31 in FY2025; down 6 since FY2022.
38	Emcor Group Inc. 2 awardees, including Emcor Government Services, Inc. and Combustioneer Corporation Top agencies DHA (Defense Health Agency) GSA (General Services Administration) GAO (Government Accountability Office)	$68,083,597	0.3%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #62 in FY2025; up 298 since FY2022.
39	Hensel Phelps - Shimizu JV 4 awardees, including Hensel Phelps Construction Co Top agencies Navy (Department of the Navy) DOI (Department of the Interior) Commerce (Department of Commerce)	$67,597,622	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Chugach Alaska Corporation 5 awardees, including Wolf Creek Federal Services LLC, Chugach Consolidated Solutions, LLC and Defense Base Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) GSA (General Services Administration)	$66,197,841	0.3%	Rank history: #28 in FY2021, #49 in FY2022, #45 in FY2024 and not on the FY2025 list; up 9 since FY2022.
41	Marinex Construction Inc. Top agencies Army (Department of the Army)	$64,855,379	0.3%	Rank history: not on the FY2021 list, #83 in FY2022 and not on the FY2024–FY2025 lists; up 42 since FY2022.
42	Peter Kiewit Sons', Inc. 3 awardees, including Weeks Marine, Inc. and Kiewit Infrastructure West Co Top agencies Army (Department of the Army) Navy (Department of the Navy)	$64,059,536	0.3%	Rank history: #36 in FY2021, not on the FY2022 list, #6 in FY2024 and #25 in FY2025; up 62 since FY2022.
43	Skookum Educational Programs Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$62,753,600	0.3%	Rank history: #40 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
44	Trade West Construction, Inc. Top agencies Army (Department of the Army)	$61,191,434	0.3%	Rank history: not on the FY2021 list, #33 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
45	Wood Environment & Infrastructure Solutions Inc. 2 awardees, including WSP USA Environment & Infrastructure Inc. and WSP E&Is GMBH Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$60,866,609	0.2%	Rank history: #69 in FY2021, #80 in FY2022 and not on the FY2024–FY2025 lists; up 35 since FY2022.
46	Manson Construction Co. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$60,844,333	0.2%	Rank history: #12 in FY2021, #17 in FY2022, #13 in FY2024 and not on the FY2025 list; down 29 since FY2022.
47	Arctic Slope Regional Corporation 5 awardees, including Asrc Communications, Ltd., Asrc Builders LLC and Asrc Federal Field Services, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$58,610,039	0.2%	Rank history: #26 in FY2021, #67 in FY2022, #10 in FY2024 and #10 in FY2025; up 20 since FY2022.
48	Mitchell Brothers Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$58,097,942	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 114 since FY2022.
49	Mcmillen LLC Top agencies Army (Department of the Army) DOI (Department of the Interior)	$57,956,751	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 335 since FY2022.
50	Hensel Phelps Construction Co 5 awardees, including Hensel Phelps Services LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) DOI (Department of the Interior)	$57,921,728	0.2%	Rank history: #4 in FY2021, #10 in FY2022, #46 in FY2024 and #29 in FY2025; down 40 since FY2022.
51	Pond Constructors Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$57,607,748	0.2%	Rank history: not on the FY2021 list, #54 in FY2022, #30 in FY2024 and #40 in FY2025; up 3 since FY2022.
52	Global Pacific Design Builders, LLC Top agencies Navy (Department of the Navy)	$57,450,892	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #97 in FY2025; up 119 since FY2022.
53	Bristol Bay Native Corporation 7 awardees, including Bristol General Contractors, LLC, Specpro Environmental Services LLC and Bristol Engineering Services Company, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$57,025,820	0.2%	Rank history: #44 in FY2021, not on the FY2022 list, #51 in FY2024 and #72 in FY2025; up 102 since FY2022.
54	BWI Tpc, A Joint Venture Top agencies DOI (Department of the Interior)	$56,854,529	0.2%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
55	SES Electrical LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$56,310,407	0.2%	Rank history: not on the FY2021 list, #94 in FY2022, not on the FY2024 list and #75 in FY2025; up 39 since FY2022.
56	NW Construction, Inc. Top agencies DOI (Department of the Interior)	$54,748,917	0.2%	Rank history: not on the FY2021 list, #19 in FY2022, #19 in FY2024 and #8 in FY2025; down 37 since FY2022.
57	Professional Contract Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$54,563,557	0.2%	Rank history: #45 in FY2021, #46 in FY2022, #48 in FY2024 and #51 in FY2025; down 11 since FY2022.
58	Action Facilities Management Inc. 2 awardees, including Action Integrated Services LLC Top agencies DOJ (Department of Justice) GSA (General Services Administration) Army (Department of the Army)	$54,325,858	0.2%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #35 in FY2025; up 83 since FY2022.
59	Callan Marine Ltd Top agencies Army (Department of the Army)	$53,778,587	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Curtin Maritime Corp Top agencies Army (Department of the Army)	$53,648,314	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #21 in FY2025; up 71 since FY2022.
61	Tepa Construction Solutions, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$53,266,072	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	NH1 JV Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$52,956,857	0.2%	Rank history: not on the FY2021 list, #58 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
63	Nan Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$52,593,746	0.2%	Rank history: not on the FY2021 list, #29 in FY2022, #98 in FY2024 and #7 in FY2025; down 34 since FY2022.
64	Conti Federal Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$52,485,951	0.2%	Rank history: not on the FY2021 list, #32 in FY2022 and not on the FY2024–FY2025 lists; down 32 since FY2022.
65	Bering Straits Native Corporation 5 awardees, including Stampede Ventures, Inc., Arcticom, LLC and Bering Global Solutions, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$51,488,298	0.2%	Rank history: #61 in FY2021, #51 in FY2022, #82 in FY2024 and #43 in FY2025; down 14 since FY2022.
66	Rbvetco, LLC Top agencies VA (Department of Veterans Affairs)	$51,476,023	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Sourceamerica Top agencies Army (Department of the Army)	$51,150,081	0.2%	Rank history: #56 in FY2021, #38 in FY2022 and not on the FY2024–FY2025 lists; down 29 since FY2022.
68	Nordic PCL Construction Inc. Top agencies Army (Department of the Army)	$51,039,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
69	Joyce & Associates Construction, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$50,936,113	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 124 since FY2022.
70	Atkins Nuclear Secured Holdings Corporation Through Isotek Systems, LLC Top agencies DOE (Department of Energy)	$50,508,521	0.2%	Rank history: #41 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
71	Military & Federal Construction Co., Inc. Top agencies Navy (Department of the Navy)	$50,438,703	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #83 in FY2025; up 38 since FY2022.
72	Insight Pacific, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$50,047,596	0.2%	Rank history: not on the FY2021 list, #30 in FY2022, not on the FY2024 list and #33 in FY2025; down 42 since FY2022.
73	SES Construction and Fuel Services LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) NASA (National Aeronautics and Space Administration)	$49,753,644	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 207 since FY2022.
74	Slayden Constructors Inc Top agencies Army (Department of the Army)	$48,243,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Akima Range Readiness Operations LLC Top agencies USAF (Department of the Air Force)	$48,084,769	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Dawson Enterprises, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$47,980,042	0.2%	Rank history: #53 in FY2021, #56 in FY2022, not on the FY2024 list and #47 in FY2025; down 20 since FY2022.
77	Sumitomo Heavy Industries, Ltd. 2 awardees, including Sumiju Yokosuka Kogyo Co., Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DECA (Defense Commissary Agency)	$47,263,572	0.2%	Rank history: #81 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 173 since FY2022.
78	Environmental Chemical Corporation 7 awardees, including Contrack ECC LLC, ECC Diego Garcia LLC and Ecco GMBH Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$46,549,042	0.2%	Rank history: not on the FY2021 list, #11 in FY2022 and not on the FY2024–FY2025 lists; down 67 since FY2022.
79	Cook Inlet Region Inc. 4 awardees, including Weldin Construction LLC, Silver Mountain Construction, LLC and North Wind Site Services LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$46,030,585	0.2%	Rank history: #37 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 44 since FY2022.
80	I.e.-Pacific, Inc. Top agencies Navy (Department of the Navy)	$45,807,685	0.2%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2024 and not on the FY2025 list; up 23 since FY2022.
81	Intec Group LLC Top agencies Army (Department of the Army)	$45,462,158	0.2%	Rank history: not on the FY2021 list, #68 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
82	Cashman Dredging and Marine Contracting Co. LLC Top agencies Army (Department of the Army)	$45,230,610	0.2%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
83	Natives of Kodiak, Incorporated 3 awardees, including Koman Construction, LLC, Koman Government Solutions LLC and Koman Integrated Solutions, LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$44,461,444	0.2%	Rank history: #42 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 149 since FY2022.
84	Semper TEK Inc Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) Army (Department of the Army)	$43,567,890	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #58 in FY2025; new.
85	The Dutra Group Top agencies Army (Department of the Army)	$43,530,640	0.2%	Rank history: #18 in FY2021, not on the FY2022 list, not on the FY2024 list and #92 in FY2025; returned.
86	Obayashi Corporation 2 awardees, including E.w. Howell Co., LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$42,968,865	0.2%	Rank history: #65 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
87	Sauer Holdings Inc. 2 awardees, including Sauer Construction, LLC and Ruthrauff Sauer, LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$42,857,797	0.2%	Rank history: not on the FY2021 list, #15 in FY2022 and not on the FY2024–FY2025 lists; down 72 since FY2022.
88	Herman Construction Group, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$41,571,380	0.2%	Rank history: #38 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 25 since FY2022.
89	Midnight Sun-Centennial Kirratchiaq JV, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$41,194,647	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and not on the FY2025 list; up 68 since FY2022.
90	Red Eagle JV Top agencies Army (Department of the Army)	$41,121,620	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Caddell-Nan A Joint Venture Top agencies Navy (Department of the Navy)	$41,016,160	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Silver Lake Construction LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$40,711,952	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and not on the FY2025 list; new.
93	Kellie W. Tipton Construction Co, Inc. 2 awardees, including Tipton-Fsi Joint Venture, LLC Top agencies Army (Department of the Army)	$40,708,924	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Valiant Integrated Services LLC Through Valiant Government Services LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) Navy (Department of the Navy)	$39,899,797	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Louis Berger U.S. Inc. 3 awardees, including VGS Infrastructure Services Inc., VGS Aircraft Services, Inc. and The Louis Berger Group, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) GSA (General Services Administration)	$39,008,179	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 34 since FY2022.
96	Etolin Strait Development Group LLC 3 awardees, including Etolin Strait Partners, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$38,272,430	0.2%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
97	Core Tech-Hdcc-Kajima LLC Top agencies Navy (Department of the Navy)	$37,916,502	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Triple Canopy Inc. 5 awardees, including Centerra Integrated Facilities Services, LLC, Centerra Integrated Services GMBH and Centerra Group, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) GSA (General Services Administration)	$37,878,899	0.2%	Rank history: not on the FY2021 list, #86 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
99	Nana Regional Corporation Inc. Through Jade Creek Construction LLC Top agencies DOJ (Department of Justice) GSA (General Services Administration) Army (Department of the Army)	$37,587,999	0.2%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #91 in FY2025; new.
100	South Dade Air Conditioning & Refrigeration Inc. Top agencies GSA (General Services Administration) Army (Department of the Army) USAF (Department of the Air Force)	$37,354,732	0.2%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and #50 in FY2025; up 67 since FY2022.

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 $24.3 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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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