Top 100 Contractors in PSC Z2: Maintenance, Alteration, Repair Nonbuildings, FY2025

Name: Top 100 Contractors in PSC Z2: Maintenance, Alteration, Repair Nonbuildings, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 15% of FY2025 PSC Z2 contract dollars

Contract obligations: $14,250,173,788 Net of deobligations, by contracts coded PSC Z2 or a code under it
Contractors: 3,911 Parent companies with an obligation
Largest contractor: Tpc-Nan A Joint Venture $576 million, 3.8% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Tpc-Nan A Joint Venture Top agencies Navy (Department of the Navy)	$576,073,022	3.8%	Rank history: not on the FY2021–FY2024 lists; new.
2	BL Harbert International LLC Top agencies USAF (Department of the Air Force)	$262,014,866	1.7%	Rank history: not on the FY2021–FY2024 lists; new.
3	RQ Construction, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$249,242,373	1.7%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #6 in FY2024; up 3 since FY2024.
4	Nan Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$241,655,680	1.6%	Rank history: not on the FY2021 list, #28 in FY2022, #33 in FY2023 and #61 in FY2024; up 57 since FY2024.
5	NW Construction, Inc. Top agencies DOI (Department of the Interior)	$225,853,813	1.5%	Rank history: not on the FY2021 list, #10 in FY2022, #30 in FY2023 and #11 in FY2024; up 6 since FY2024.
6	Kiewit-Alberici Siop Macc AJV Top agencies Navy (Department of the Navy)	$225,700,000	1.5%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2023 and not on the FY2024 list; returned.
7	Hawaii Harbors Constructors JV Top agencies Navy (Department of the Navy)	$136,343,281	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
8	Sauer Construction LLC Top agencies Navy (Department of the Navy)	$123,624,655	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
9	Sea PAC Engineering Inc Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOJ (Department of Justice)	$122,887,770	0.8%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and #45 in FY2024; up 36 since FY2024.
10	Nippo Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$122,249,165	0.8%	Rank history: not on the FY2021–FY2024 lists; up 102 since FY2024.
11	Structsure Projects Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DHA (Defense Health Agency)	$112,252,751	0.7%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2023 and #17 in FY2024; up 6 since FY2024.
12	Ames Federal Contracting Group LLC Top agencies DOI (Department of the Interior)	$112,100,000	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
13	American Engineering Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$105,703,668	0.7%	Rank history: #12 in FY2021, #14 in FY2022, #11 in FY2023 and #5 in FY2024; down 8 since FY2024.
14	Head / Diaz 2022 Top agencies Navy (Department of the Navy)	$101,154,199	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
15	Tutor Perini Corporation Through Perini Management Services, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) Navy (Department of the Navy)	$100,616,606	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
16	J & J Maintenance Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$88,273,001	0.6%	Rank history: not on the FY2021–FY2024 lists; up 314 since FY2024.
17	Weston Solutions Holdings Inc Through Weston Solutions Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$88,140,648	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
18	Barnard Construction Company, Incorporated Top agencies Army (Department of the Army) DOE (Department of Energy)	$87,922,159	0.6%	Rank history: not on the FY2021 list, #8 in FY2022 and not on the FY2023–FY2024 lists; up 87 since FY2024.
19	Hcpa-Garco JV1 Top agencies USAF (Department of the Air Force)	$85,650,000	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
20	Emr, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$79,132,185	0.5%	Rank history: not on the FY2021–FY2024 lists; up 97 since FY2024.
21	Honeywell International Inc. 2 awardees, including Honeywell Building Solutions SES Corp Top agencies GSA (General Services Administration) NARA (National Archives and Records Administration) USDA (Department of Agriculture)	$77,561,667	0.5%	Rank history: #14 in FY2021, #19 in FY2022, #21 in FY2023 and not on the FY2024 list; returned.
22	Hensel Phelps Construction Co 3 awardees Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$75,541,720	0.5%	Rank history: #3 in FY2021, #6 in FY2022, #38 in FY2023 and #30 in FY2024; up 8 since FY2024.
23	Insight Pacific, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$70,484,041	0.5%	Rank history: not on the FY2021 list, #31 in FY2022, #43 in FY2023 and not on the FY2024 list; up 85 since FY2024.
24	Clark Construction Group - California, LP Top agencies Navy (Department of the Navy)	$68,408,704	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
25	Olgoonik Enterprises, LLC Top agencies USAF (Department of the Air Force) GSA (General Services Administration) Army (Department of the Army)	$66,390,306	0.4%	Rank history: #33 in FY2021, #44 in FY2022, #19 in FY2023 and #40 in FY2024; up 15 since FY2024.
26	General Electric Company Through GE Renewables US LLC Top agencies Army (Department of the Army)	$60,436,934	0.4%	Rank history: #82 in FY2021, not on the FY2022–FY2023 lists and #78 in FY2024; up 52 since FY2024.
27	Nova Group, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$57,431,076	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
28	Dawson Enterprises, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$57,225,766	0.4%	Rank history: #28 in FY2021, #48 in FY2022, #42 in FY2023 and not on the FY2024 list; up 203 since FY2024.
29	Bering Straits Native Corporation 2 awardees, including Stampede Ventures, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$55,870,861	0.4%	Rank history: #38 in FY2021, #92 in FY2022, #67 in FY2023 and #71 in FY2024; up 42 since FY2024.
30	Southeastern Industrial Barlovento JV Through Southeastern Industrial Barlovento Jv-2, LLC Top agencies Navy (Department of the Navy)	$55,254,644	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
31	Modern International Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$54,867,077	0.4%	Rank history: not on the FY2021–FY2024 lists; up 394 since FY2024.
32	Atkins Nuclear Secured Holdings Corporation Through Isotek Systems, LLC Top agencies DOE (Department of Energy)	$54,068,923	0.4%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; down 3 since FY2024.
33	Sedona-Nasco Jv2, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$50,356,077	0.3%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 9 since FY2024.
34	WSP USA Environment & Infrastructure Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$49,723,323	0.3%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; down 10 since FY2024.
35	Absher Construction Co 2 awardees, including Jabez-Absher Small Business Joint Venture Top agencies Navy (Department of the Navy) Army (Department of the Army)	$48,693,400	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
36	Kekolu Contracting, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$48,413,434	0.3%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 38 since FY2024.
37	International Towers LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$48,168,743	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
38	Native American Services Corp. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$47,445,663	0.3%	Rank history: not on the FY2021–FY2024 lists; up 86 since FY2024.
39	Murnane Building Contractors, Inc. Top agencies GSA (General Services Administration)	$47,195,000	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
40	Pacific Rim Constructors Inc. Top agencies USAF (Department of the Air Force)	$47,024,523	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
41	Bridger Richard JV LLC Top agencies VA (Department of Veterans Affairs)	$46,999,616	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
42	V2X, Inc. 2 awardees, including Vectrus Federal Services GMBH and V2X Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$45,583,731	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
43	Serrano Construction and Development Corp. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$44,608,232	0.3%	Rank history: not on the FY2021–FY2024 lists; up 150 since FY2024.
44	Swank Enterprises, Inc. Top agencies GSA (General Services Administration)	$44,289,144	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
45	Doyon Management Services, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$44,056,504	0.3%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; down 22 since FY2024.
46	SES Electrical LLC Top agencies Army (Department of the Army)	$43,772,071	0.3%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and not on the FY2024 list; returned.
47	Chickasaw Defense Group, LLC Top agencies Navy (Department of the Navy)	$43,497,604	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
48	Hurley JV, LLP Top agencies VA (Department of Veterans Affairs)	$43,319,739	0.3%	Rank history: not on the FY2021–FY2024 lists; up 79 since FY2024.
49	Facility Services Management, Inc. Top agencies Army (Department of the Army)	$43,230,403	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	Techni-Con, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$41,720,034	0.3%	Rank history: not on the FY2021–FY2024 lists; up 97 since FY2024.
51	Benaka, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$41,275,723	0.3%	Rank history: not on the FY2021 list, #87 in FY2022 and not on the FY2023–FY2024 lists; up 213 since FY2024.
52	The Whiting-Turner Contracting Company Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) GSA (General Services Administration)	$41,151,991	0.3%	Rank history: #96 in FY2021, #17 in FY2022, #2 in FY2023 and #15 in FY2024; down 37 since FY2024.
53	Lead Builders Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$40,750,766	0.3%	Rank history: not on the FY2021–FY2024 lists; up 81 since FY2024.
54	Glen / Mar Construction, Inc. 2 awardees, including Glen Mar-Hensel Phelps Top agencies Navy (Department of the Navy) GSA (General Services Administration)	$40,544,951	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
55	Onsite Construction Group LLC Top agencies VA (Department of Veterans Affairs)	$40,366,887	0.3%	Rank history: not on the FY2021–FY2024 lists; up 224 since FY2024.
56	Grunley Construction Co., Inc. Top agencies Navy (Department of the Navy) Smithsonian (Smithsonian Institution) NARA (National Archives and Records Administration)	$39,769,929	0.3%	Rank history: #41 in FY2021, not on the FY2022 list, #7 in FY2023 and #13 in FY2024; down 43 since FY2024.
57	Contrack ECC LLC Top agencies DLA (Defense Logistics Agency)	$39,603,284	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 3 since FY2024.
58	Military & Federal Construction Co., Inc. Top agencies Navy (Department of the Navy)	$39,569,676	0.3%	Rank history: not on the FY2021 list, #72 in FY2022, #72 in FY2023 and not on the FY2024 list; returned.
59	Etolin Strait Associates LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$39,206,071	0.3%	Rank history: not on the FY2021–FY2024 lists; up 207 since FY2024.
60	SKE & VFS JV Top agencies Army (Department of the Army)	$38,646,293	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
61	Outside Box LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$36,534,961	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
62	Triton Marine Construction Corp. Top agencies Navy (Department of the Navy)	$36,224,246	0.2%	Rank history: not on the FY2021–FY2024 lists; up 313 since FY2024.
63	Fargo Pacific Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHA (Defense Health Agency)	$36,175,447	0.2%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; down 17 since FY2024.
64	RHI LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Army (Department of the Army)	$36,012,611	0.2%	Rank history: not on the FY2021–FY2024 lists; up 257 since FY2024.
65	Harper Construction Company Inc. Top agencies Navy (Department of the Navy)	$35,507,977	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Environet Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$35,368,871	0.2%	Rank history: not on the FY2021–FY2024 lists; up 234 since FY2024.
67	Medvolt - Roundhouse JV Top agencies DOI (Department of the Interior)	$34,316,195	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
68	Infratech International, LLC Top agencies USAF (Department of the Air Force)	$34,252,879	0.2%	Rank history: not on the FY2021–FY2024 lists; up 115 since FY2024.
69	Centerra Integrated Facilities Services, LLC Top agencies Army (Department of the Army)	$34,166,115	0.2%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.
70	OCI Overseas Holding Limited Through Contrack Watts Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$34,161,379	0.2%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
71	Guidehouse Inc. Through Aptim Federal Services, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$33,639,006	0.2%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 57 since FY2024.
72	Mckenzie Construction & Site Development LLC Top agencies GSA (General Services Administration) Army (Department of the Army) USDA (Department of Agriculture)	$33,411,627	0.2%	Rank history: not on the FY2021–FY2024 lists; up 48 since FY2024.
73	Utility Systems Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$33,215,383	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
74	J G Contracting Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$32,942,362	0.2%	Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
75	Firelake Construction Inc Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) DOT (Department of Transportation)	$32,827,869	0.2%	Rank history: not on the FY2021–FY2024 lists; up 342 since FY2024.
76	New Dominion Construction LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DHA (Defense Health Agency)	$32,170,578	0.2%	Rank history: not on the FY2021–FY2024 lists; up 153 since FY2024.
77	Shape Construction Inc Top agencies Navy (Department of the Navy)	$31,837,032	0.2%	Rank history: not on the FY2021–FY2024 lists; up 218 since FY2024.
78	Healtheon, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$31,812,436	0.2%	Rank history: not on the FY2021–FY2024 lists; up 248 since FY2024.
79	Ameresco Inc. 2 awardees, including Ameresco Select, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$31,635,535	0.2%	Rank history: #42 in FY2021, #90 in FY2022, #64 in FY2023 and not on the FY2024 list; up 46 since FY2024.
80	Mig Gov, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$31,631,977	0.2%	Rank history: not on the FY2021–FY2024 lists; up 72 since FY2024.
81	Port Madison Construction Corporation Top agencies Navy (Department of the Navy)	$31,073,742	0.2%	Rank history: not on the FY2021–FY2024 lists; up 109 since FY2024.
82	P & S Construction Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$30,968,964	0.2%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
83	JBW Group LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$30,652,102	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 5 since FY2024.
84	DTS P&L JV2 Top agencies Navy (Department of the Navy)	$30,051,073	0.2%	Rank history: not on the FY2021–FY2024 lists; up 197 since FY2024.
85	HDD JV Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service) DOT (Department of Transportation)	$29,803,779	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
86	Spectrum Solutions Inc. Top agencies Army (Department of the Army)	$29,193,007	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
87	Elevated Technologies Services, LLC Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) VA (Department of Veterans Affairs)	$29,073,406	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
88	S.b. Ballard Construction Company Top agencies Navy (Department of the Navy)	$28,233,972	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
89	Northbank Civil and Marine, LLC Top agencies Army (Department of the Army)	$27,999,037	0.2%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; down 3 since FY2024.
90	Mcmillen, Inc. Top agencies Army (Department of the Army)	$27,747,719	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
91	Gana-A' Yoo, Limited 4 awardees, including Gana-A'yoo Construction Services JV, LLC, Khotol Services Corporation and Yukon Management, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Treasury (Department of the Treasury)	$27,674,441	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
92	SU-MO Builders Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) AOUSC (Administrative Office of the U.S. Courts)	$27,601,813	0.2%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; down 56 since FY2024.
93	Brice Builders, LLC Top agencies Army (Department of the Army)	$27,517,605	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
94	JM Construction Services Inc. Top agencies USAF (Department of the Air Force)	$27,480,017	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
95	Toda-Nudp JV Top agencies Navy (Department of the Navy)	$27,232,463	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
96	Western Marine Construction, Inc. Top agencies Army (Department of the Army)	$26,950,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
97	Semper TEK Inc Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$26,372,977	0.2%	Rank history: not on the FY2021–FY2024 lists; up 186 since FY2024.
98	Pullman Sst, Inc. Top agencies DOI (Department of the Interior) GSA (General Services Administration)	$26,329,464	0.2%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 25 since FY2024.
99	Pure Enviro-Management, LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) USAF (Department of the Air Force)	$26,204,048	0.2%	Rank history: not on the FY2021–FY2024 lists; up 280 since FY2024.
100	Midnight Sun-Centennial Kirratchiaq JV, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$26,139,212	0.2%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023 and #62 in FY2024; down 38 since FY2024.

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100 of 3,911 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC Z2

Code	Net obligations	Largest contractor
Z2JZ Repair or Alteration of Miscellaneous Buildings	$2,853,407,439	Hcpa-Garco JV1
Z2AA Repair or Alteration of Office Buildings	$1,654,139,935	Honeywell International Inc.
Z2PZ Repair or Alteration of Other Non-Building Facilities	$1,221,038,575	Tpc-Nan A Joint Venture
Z2DA Repair or Alteration of Hospitals and Infirmaries	$1,070,461,504	Structsure Projects Inc.
Z2AZ Repair or Alteration of Other Administrative Facilities and Service Buildings	$842,018,591	BL Harbert International LLC
Z2KA Repair or Alteration of Dams	$822,288,412	NW Construction, Inc.
Z2FC Repair or Alteration of Troop Housing Facilities	$597,228,707	Sea PAC Engineering Inc
Z2NA Repair or Alteration of Fuel Supply Facilities	$507,829,704	Weston Solutions Holdings Inc
Z2QA Repair or Alteration of Restoration of Real Property (Public or Private)	$454,652,288	Sedona-Nasco Jv2, LLC
Z2LB Repair or Alteration of Highways/Roads/Streets/Bridges/Railways	$436,806,771	Mckenzie Construction & Site Development LLC
Z2NZ Repair or Alteration of Other Utilities	$431,423,651	Sauer Construction LLC
Z2ED Repair or Alteration of Ship Construction and Repair Facilities	$379,124,816	Kiewit-Alberici Siop Macc AJV
Z2BD Repair or Alteration of Airport Runways and Taxiways	$356,210,853	Head / Diaz 2022
Z2NE Repair or Alteration of Water Supply Facilities	$206,259,931	Nan Inc.
Z2BZ Repair or Alteration of Other Airfield Structures	$189,417,082	RQ Construction, LLC
Z2FA Repair or Alteration of Family Housing Facilities	$184,690,681	Nippo Corporation
Z2CZ Repair or Alteration of Other Educational Buildings	$182,759,718	RQ Construction, LLC
Z2EB Repair or Alteration of Maintenance Buildings	$155,005,467	Dawson Enterprises, Inc.
Z2EZ Repair or Alteration of Other Industrial Buildings	$114,127,401	CCI Facility Support Services, LLC
Z2DZ Repair or Alteration of Other Hospital Buildings	$108,565,436	S.b. Ballard Construction Company
Z2GZ Repair or Alteration of Other Warehouse Buildings	$108,192,615	International Towers LLC
Z2FB Repair or Alteration of Recreational Buildings	$102,736,412	Insight Pacific, LLC
Z2EA Repair or Alteration of Ammunition Facilities	$100,597,481	Chickasaw Defense Group, LLC
Z2KZ Repair or Alteration of Other Conservation and Development Facilities	$95,565,833	Ameresco Inc.
Z2FZ Repair or Alteration of Other Residential Buildings	$88,050,025	Nippo Corporation
Z2PD Repair or Alteration of Waste Treatment and Storage Facilities	$74,501,045	Tutor Perini Corporation
Z2PA Repair or Alteration of Recreation Facilities (Non-Building)	$66,713,608	EC Praus LLC
Z2FF Repair or Alteration of Penal Facilities	$66,513,847	Utility Systems Solutions, Inc.
Z2ND Repair or Alteration of Sewage and Waste Facilities	$63,596,014	JBW Group LLC
Z2NB Repair or Alteration of Heating and Cooling Plants	$58,022,726	Sgjv, LLC
Z2EC Repair or Alteration of Production Buildings	$53,544,401	Dmyles Inc.
Z2BG Repair or Alteration of Electronic and Communications Facilities	$48,755,449	Framaco-Bozdemir Joint Venture LLC
Z2JA Repair or Alteration of Museums and Exhibition Buildings	$41,814,039	Stone & Lime Imports, Inc.
Z2FD Repair or Alteration of Dining Facilities	$40,174,274	Grunley Construction Co., Inc.
Z2BC Repair or Alteration of Radar and Navigational Facilities	$38,415,441	Ahtna Infrastructure & Technologies LLC
Z2LZ Repair or Alteration of Parking Facilities	$38,319,571	HDD JV
Z2CA Repair or Alteration of Schools	$28,562,859	Per-Geesh TLI JV, LLC
Z2DB Repair or Alteration of Laboratories and Clinics	$20,477,434	Red Bison Services, LLC
Z2AB Repair or Alteration of Conference Space and Facilities	$11,188,113	I.e.-Pacific, Inc.
Z2BA Repair or Alteration of Air Traffic Control Towers	$8,124,503	BBA Construction LLC

Show all 40

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 $15.1 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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

Who were the top 10 PSC Z2 contractors in FY2025?

1. Tpc-Nan A Joint Venture ($576M), 2. BL Harbert International LLC ($262M), 3. RQ Construction, LLC ($249M), 4. Nan Inc. ($242M), 5. NW Construction, Inc. ($226M), 6. Kiewit-Alberici Siop Macc AJV ($226M), 7. Hawaii Harbors Constructors JV ($136M), 8. Sauer Construction LLC ($124M), 9. Sea PAC Engineering Inc ($123M), 10. Nippo Corporation ($122M).

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