Top 100 Contractors in PSC Y1: Construction of Buildings, FY2024

Name: Top 100 Contractors in PSC Y1: Construction of Buildings, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 24% of FY2024 PSC Y1 contract dollars

Contract obligations: $31,352,511,243 Net of deobligations, by contracts coded PSC Y1 or a code under it
Contractors: 3,467 Parent companies with an obligation
Largest contractor: Clark Construction Group LLC $1.79 billion, 5.3% 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	Clark Construction Group LLC 5 awardees, including Clark Construction Group - California, LP, Atkinson / Clark, A Joint Venture and Clark Construction LLC Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration) USAF (Department of the Air Force)	$1,792,348,153	5.3%	Rank history: #20 in FY2021, #24 in FY2022, #5 in FY2023 and #22 in FY2025; up 4 since FY2023.
2	Caddell Construction Co. (De), LLC Top agencies DOS (Department of State) Army (Department of the Army)	$947,884,039	2.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
3	Hensel Phelps Construction Co 9 awardees, including Hensel Phelps - Shimizu JV Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$931,568,680	2.8%	Rank history: #3 in FY2021, #1 in FY2022, #13 in FY2023 and #9 in FY2025; up 10 since FY2023.
4	Bechtel Corp 2 awardees, including Bechtel National, Inc. Top agencies DOE (Department of Energy) Navy (Department of the Navy)	$874,874,600	2.6%	Rank history: #2 in FY2021, #8 in FY2022, #6 in FY2023 and #3 in FY2025; up 2 since FY2023.
5	Dragados / Hawaiian Dredging / Orion JV Top agencies Navy (Department of the Navy)	$790,689,582	2.3%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023 and #2 in FY2025; up 5 since FY2023.
6	Trumbull Corporation and Brayman Construction Corporation, A Joint Venture Top agencies Army (Department of the Army)	$771,276,068	2.3%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; up 363 since FY2023.
7	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$578,994,410	1.7%	Rank history: #9 in FY2021, #4 in FY2022, #12 in FY2023 and not on the FY2025 list; up 5 since FY2023.
8	Harper Construction Company Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$497,080,269	1.5%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
9	Peter Kiewit Sons', Inc. 9 awardees, including Kiewit Infrastructure Co., Weeks Marine, Inc. and Kiewit Infrastructure West Co. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$492,308,850	1.5%	Rank history: #18 in FY2021, #41 in FY2022, #17 in FY2023 and #5 in FY2025; up 8 since FY2023.
10	381 Constructors Top agencies Navy (Department of the Navy)	$447,381,147	1.3%	Rank history: #55 in FY2021, #5 in FY2022, #11 in FY2023 and #14 in FY2025; up 1 since FY2023.
11	Kokosing Alberici Traylor, LLC Top agencies Army (Department of the Army)	$436,767,008	1.3%	Rank history: not on the FY2021 list, #3 in FY2022, #21 in FY2023 and #50 in FY2025; up 10 since FY2023.
12	Conti Federal Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$419,252,750	1.2%	Rank history: not on the FY2021 list, #17 in FY2022, #50 in FY2023 and #40 in FY2025; up 38 since FY2023.
13	The Whiting-Turner Contracting Company Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$418,127,569	1.2%	Rank history: #5 in FY2021, #14 in FY2022, #22 in FY2023 and #8 in FY2025; up 9 since FY2023.
14	Hensel Phelps - Shimizu JV 8 awardees, including Hensel Phelps Construction Co Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$405,677,713	1.2%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and not on the FY2025 list; up 22 since FY2023.
15	Balfour Beatty Construction LLC 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$388,981,032	1.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Tully Construction Co - Thalle Construction Co LLC Through Thalle Construction Co Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$365,380,389	1.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
17	Serco Inc Top agencies USAF (Department of the Air Force)	$323,067,968	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
18	CMS Corporation Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Army (Department of the Army)	$319,703,430	0.9%	Rank history: not on the FY2021 list, #66 in FY2022, #61 in FY2023 and #58 in FY2025; up 43 since FY2023.
19	Bccg A Joint Venture Top agencies DHS (Department of Homeland Security)	$287,037,582	0.9%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
20	Manson Construction Co 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) USDA (Department of Agriculture)	$268,229,012	0.8%	Rank history: #78 in FY2021, #26 in FY2022, #28 in FY2023 and #21 in FY2025; up 8 since FY2023.
21	BL Harbert International LLC Top agencies Army (Department of the Army) DOS (Department of State) Navy (Department of the Navy)	$235,179,209	0.7%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2025; new.
22	RQ Construction, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$234,100,639	0.7%	Rank history: #10 in FY2021, #11 in FY2022, #25 in FY2023 and #16 in FY2025; up 3 since FY2023.
23	Core Tech-Hdcc-Kajima LLC Top agencies Navy (Department of the Navy)	$233,838,578	0.7%	Rank history: #4 in FY2021, not on the FY2022 list, #39 in FY2023 and #10 in FY2025; up 16 since FY2023.
24	Black Construction-Tutor Perini JV Top agencies Navy (Department of the Navy)	$227,980,376	0.7%	Rank history: #39 in FY2021, #13 in FY2022, #85 in FY2023 and #42 in FY2025; up 61 since FY2023.
25	The Lane Construction Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army)	$210,542,306	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
26	Walsh Federal LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$208,737,044	0.6%	Rank history: #32 in FY2021, #16 in FY2022, #1 in FY2023 and #17 in FY2025; down 25 since FY2023.
27	Pacific Rim Constructors Inc. Top agencies Navy (Department of the Navy)	$208,288,480	0.6%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and not on the FY2025 list; up 49 since FY2023.
28	Absher Construction Co 2 awardees, including Jabez-Absher Small Business Joint Venture Top agencies Navy (Department of the Navy) Army (Department of the Army)	$203,248,798	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 207 since FY2023.
29	R.c. Construction Co., Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$187,726,464	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
30	Granite Construction Company Guam 2 awardees, including Granite Construction Company Top agencies DOT (Department of Transportation) Army (Department of the Army) Navy (Department of the Navy)	$183,868,670	0.5%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #27 in FY2025; down 12 since FY2023.
31	Tepa EC, LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$175,720,650	0.5%	Rank history: not on the FY2021 list, #53 in FY2022, not on the FY2023 list and #49 in FY2025; returned.
32	CDM Constructors Inc. Top agencies DOI (Department of the Interior)	$175,284,992	0.5%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
33	Mccarthy Building Companies, Inc. Top agencies Army (Department of the Army)	$169,455,200	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
34	Korte Construction Company Top agencies Army (Department of the Army) Navy (Department of the Navy) DHA (Defense Health Agency)	$148,679,325	0.4%	Rank history: #27 in FY2021, not on the FY2022 list, #54 in FY2023 and #35 in FY2025; up 20 since FY2023.
35	Skanska USA Building Inc. 3 awardees, including Skanska USA Civil Northeast Inc. and Skanska USA Civil West California District Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army) USDA (Department of Agriculture)	$148,216,400	0.4%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
36	Jacobs Government Services Company 4 awardees, including Jacobs Project Management Co., Amentum Technology, Inc. and Ch2M Hill Constructors, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) DOS (Department of State)	$144,544,958	0.4%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
37	DB Netz AG Regionalnetz Oberpfalz Top agencies Army (Department of the Army)	$144,435,027	0.4%	Rank history: not on the FY2021 list, #74 in FY2022, #7 in FY2023 and #52 in FY2025; down 30 since FY2023.
38	Tokyu Construction-Kanehide Construction JV Top agencies Army (Department of the Army)	$139,941,472	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	M. a. Mortenson Companies Inc. Through M.a. Mortenson Company Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$139,588,193	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
40	Granite-Obayashi 2, A Joint Venture Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$135,281,931	0.4%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #25 in FY2025; up 13 since FY2023.
41	Garco Construction, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$134,323,614	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 159 since FY2023.
42	MW Builders Inc. Through Cerris Builders, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$133,818,197	0.4%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and not on the FY2025 list; up 1 since FY2023.
43	Oscar Renda Contracting Inc. Top agencies DOI (Department of the Interior)	$131,755,000	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
44	Nova Nacap A Joint Venture Top agencies Navy (Department of the Navy)	$131,230,452	0.4%	Rank history: not on the FY2021 list, #60 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
45	Archer Western Federal JV Top agencies Army (Department of the Army) Navy (Department of the Navy)	$126,257,420	0.4%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
46	Sauer Construction LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$122,114,791	0.4%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
47	Great Lakes Dredge & Dock Corporation 2 awardees, including Forgen LLC Top agencies Army (Department of the Army)	$121,881,656	0.4%	Rank history: #6 in FY2021, #32 in FY2022, #16 in FY2023 and #91 in FY2025; down 31 since FY2023.
48	ICM S.P.a. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$121,307,523	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	Nan Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHA (Defense Health Agency)	$120,855,027	0.4%	Rank history: not on the FY2021 list, #30 in FY2022, #19 in FY2023 and #18 in FY2025; down 30 since FY2023.
50	Fisher Sand & Gravel Co Top agencies DHS (Department of Homeland Security)	$120,680,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
51	Caddell-Nan A Joint Venture Top agencies Navy (Department of the Navy)	$120,466,520	0.4%	Rank history: #60 in FY2021, #85 in FY2022, not on the FY2023 list and not on the FY2025 list; up 209 since FY2023.
52	MEB General Contractors Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$117,682,130	0.3%	Rank history: not on the FY2021 list, #50 in FY2022, not on the FY2023 list and not on the FY2025 list; up 61 since FY2023.
53	MVL USA Inc. Top agencies Army (Department of the Army) DOS (Department of State) USAF (Department of the Air Force)	$115,726,365	0.3%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and not on the FY2025 list; up 21 since FY2023.
54	Richard Group LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$111,591,655	0.3%	Rank history: not on the FY2021 list, #33 in FY2022, #26 in FY2023 and not on the FY2025 list; down 28 since FY2023.
55	Pacific TECH Construction Inc. Top agencies NASA (National Aeronautics and Space Administration) DOI (Department of the Interior) USAF (Department of the Air Force)	$108,381,466	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
56	The Dutra Group 2 awardees, including San Rafael Rock Quarry, Inc. Top agencies Army (Department of the Army)	$106,012,818	0.3%	Rank history: #73 in FY2021, #86 in FY2022, #38 in FY2023 and not on the FY2025 list; down 18 since FY2023.
57	W.g. Yates & Sons Construction Company Top agencies Navy (Department of the Navy) Army (Department of the Army)	$105,935,009	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Omega Foundation Services, Inc. Top agencies Army (Department of the Army)	$100,612,956	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
59	Aktarius LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DHA (Defense Health Agency)	$100,201,651	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Parsons Corporation 3 awardees, including Parsons Government Services Inc. Top agencies Army (Department of the Army) DOE (Department of Energy)	$98,897,460	0.3%	Rank history: #14 in FY2021, not on the FY2022 list, #33 in FY2023 and #31 in FY2025; down 27 since FY2023.
61	Advon Corporation Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$94,156,275	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
62	Mcgough Construction Co., LLC Top agencies GSA (General Services Administration)	$94,124,480	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	Guyco Inc Top agencies Army (Department of the Army)	$93,881,847	0.3%	Rank history: not on the FY2021 list, #34 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
64	AC JV One LLC Top agencies VA (Department of Veterans Affairs)	$92,114,776	0.3%	Rank history: not on the FY2021 list, #38 in FY2022, not on the FY2023 list and not on the FY2025 list; up 38 since FY2023.
65	Record Steel and Construction, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$91,889,815	0.3%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; up 184 since FY2023.
66	Amcor JV One LLC Top agencies VA (Department of Veterans Affairs)	$91,430,000	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	Aici-Archirodon JV LLC Top agencies Army (Department of the Army)	$91,317,233	0.3%	Rank history: not on the FY2021 list, #77 in FY2022, #15 in FY2023 and not on the FY2025 list; down 52 since FY2023.
68	Iceland Prime Contractor Ltd Top agencies Navy (Department of the Navy)	$88,701,344	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
69	Messer Construction Co Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command)	$87,128,250	0.3%	Rank history: #37 in FY2021, not on the FY2022 list, #59 in FY2023 and not on the FY2025 list; down 10 since FY2023.
70	Grunley Construction Co., Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) National Gallery of Art	$86,585,952	0.3%	Rank history: #36 in FY2021, #18 in FY2022, #37 in FY2023 and #43 in FY2025; down 33 since FY2023.
71	Wayss & Freytag Ingenieurbau AG Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOS (Department of State)	$86,421,217	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Bering-Weston JV, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$85,540,299	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Gilbane Federal Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$84,703,660	0.3%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
74	David Boland Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) USAF (Department of the Air Force)	$84,460,129	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 129 since FY2023.
75	ACC Construction Co., Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army)	$79,364,308	0.2%	Rank history: #33 in FY2021, #67 in FY2022, not on the FY2023 list and #23 in FY2025; up 41 since FY2023.
76	J.f. Brennan Company, Inc. Top agencies Army (Department of the Army)	$77,517,873	0.2%	Rank history: #89 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 194 since FY2023.
77	Rq-Magann JV Top agencies Navy (Department of the Navy)	$77,246,614	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, #51 in FY2023 and not on the FY2025 list; down 26 since FY2023.
78	Anduril Industries Inc. Top agencies DHS (Department of Homeland Security)	$75,458,500	0.2%	Rank history: not on the FY2021 list, #75 in FY2022, #81 in FY2023 and #37 in FY2025; up 3 since FY2023.
79	Federal Contracting Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$74,940,677	0.2%	Rank history: not on the FY2021 list, #31 in FY2022, #24 in FY2023 and #64 in FY2025; down 55 since FY2023.
80	Mowa-Barlovento Joint Venture A Top agencies USAF (Department of the Air Force)	$74,060,858	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 412 since FY2023.
81	Seabee Construction, Inc. Top agencies VA (Department of Veterans Affairs)	$73,699,268	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
82	Rbvetco, LLC Top agencies VA (Department of Veterans Affairs)	$72,456,081	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Gilbane Japan GK Top agencies Army (Department of the Army)	$67,769,001	0.2%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2025; new.
84	Kokosing Construction Company, Inc. Top agencies DOT (Department of Transportation)	$67,169,240	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
85	Gilbane-Exyte A Joint Venture Top agencies Army (Department of the Army)	$64,075,591	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Tokyu Construction Co., Ltd. Top agencies Army (Department of the Army)	$64,022,595	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Pono Aina Management LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOS (Department of State)	$61,802,003	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	Great Lakes Dock and Materials, L.L.C. Top agencies Army (Department of the Army)	$61,635,654	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 136 since FY2023.
89	Environmental Chemical Corporation 4 awardees, including Contrack ECC LLC, ECC International, LLC and ECC Infrastructure LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USAF (Department of the Air Force)	$60,287,794	0.2%	Rank history: not on the FY2021 list, #6 in FY2022, #57 in FY2023 and not on the FY2025 list; down 32 since FY2023.
90	Obayashi CMS JV Top agencies Army (Department of the Army)	$60,170,304	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
91	Luhr Crosby, LLC Top agencies Army (Department of the Army)	$59,954,023	0.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2025 list; up 4 since FY2023.
92	L.s. Black Constructors, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$58,118,856	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Nippo Corporation Top agencies Army (Department of the Army)	$56,904,724	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	American International Contractors (Special Projects) Inc. Top agencies Army (Department of the Army) DOS (Department of State)	$56,174,667	0.2%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2025; new.
95	ESA South, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Army (Department of the Army)	$55,448,277	0.2%	Rank history: not on the FY2021 list, #55 in FY2022, not on the FY2023 list and #53 in FY2025; returned.
96	Swinerton Builders Top agencies USDA (Department of Agriculture)	$54,910,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Blindermanpower LLC Top agencies Army (Department of the Army)	$54,894,450	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 104 since FY2023.
98	Estes Bros. Const. Inc. Top agencies DOT (Department of Transportation)	$54,513,026	0.2%	Rank history: #56 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 57 since FY2023.
99	Donjon Marine Co., LLC Top agencies Army (Department of the Army)	$53,959,827	0.2%	Rank history: #46 in FY2021, #61 in FY2022, #77 in FY2023 and not on the FY2025 list; down 22 since FY2023.
100	Turner Construction Company Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$53,591,051	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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100 of 3,467 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC Y1

Code	Net obligations	Largest contractor
Y1JZ Construction of Miscellaneous Buildings	$5,937,568,805	B.l. Harbert Holdings, L.L.C.
Y1AZ Construction of Other Administrative Facilities and Service Buildings	$2,594,615,494	Hensel Phelps Construction Co
Y1AA Construction of Office Buildings	$2,408,299,275	Caddell Construction Co. (De), LLC
Y1DA Construction of Hospitals and Infirmaries	$1,731,341,818	Clark Construction Group LLC
Y1KA Construction of Dams	$1,486,252,375	Trumbull Corporation and Brayman Construction Corporation, A Joint Venture
Y1LB Construction of Highways, Roads, Streets, Bridges, and Railways	$1,227,837,501	Granite Construction Company Guam
Y1BZ Construction of Other Airfield Structures	$1,066,230,962	Clark Construction Group LLC
Y1FC Construction of Troop Housing Facilities	$1,048,135,664	Clark Construction Group LLC
Y1PZ Construction of Other Non-Building Facilities	$938,728,602	Fisher Sand & Gravel Co
Y1EZ Construction of Other Industrial Buildings	$931,952,639	Serco Inc
Y1KF Construction of Dredging Facilities	$888,334,062	Manson Construction Co
Y1KB Construction of Canals	$882,446,764	Tully Construction Co - Thalle Construction Co LLC
Y1BD Construction of Airport Runways and Taxiways	$860,160,820	The Lane Construction Corporation
Y1EB Construction of Maintenance Buildings	$692,898,030	Core Tech-Hdcc-Kajima LLC
Y1NE Construction of Water Supply Facilities	$658,413,943	CDM Constructors Inc.
Y1FA Construction of Family Housing Facilities	$573,391,030	Pacific Rim Constructors Inc.
Y1NZ Construction of Other Utilities	$492,931,733	Aktarius LLC
Y1CA Construction of Schools	$402,515,325	Tepa EC, LLC
Y1QA Construction of Restoration of Real Property (Public or Private)	$399,198,924	Turner Construction Company
Y1DB Construction of Laboratories and Clinics	$351,251,807	Hensel Phelps Construction Co
Y1CZ Construction of Other Educational Buildings	$325,111,261	Black Construction-Tutor Perini JV
Y1BG Construction of Electronic and Communications Facilities	$262,998,346	Anduril Industries Inc.
Y1DZ Construction of Other Hospital Buildings	$240,083,418	Advanced Technology Construction Corporation
Y1GC Construction of Fuel Storage Buildings	$227,477,071	Reliable Contracting Group, LLC
Y1NA Construction of Fuel Supply Facilities	$182,237,475	Obayashi CMS JV
Y1KZ Construction of Other Conservation and Development Facilities	$161,720,173	Donjon Marine Co., LLC
Y1ND Construction of Sewage and Waste Facilities	$158,385,395	PCL Construction Inc
Y1PC Construction of Unimproved Real Property (Land)	$155,901,679	Seabee Construction, Inc.
Y1BC Construction of Radar and Navigational Facilities	$141,254,471	Honeywell International Inc.
Y1JA Construction of Museums and Exhibition Buildings	$127,524,307	Clark Construction Group LLC
Y1LZ Construction of Parking Facilities	$126,371,621	Black Construction-Tutor Perini JV
Y1GZ Construction of Other Warehouse Buildings	$106,086,877	Caddell-Nan A Joint Venture
Y1NB Construction of Heating and Cooling Plants	$103,689,322	Energy Services Group Inc.
Y1PA Construction of Recreation Facilities (Non-Building)	$96,833,927	JBW Group LLC
Y1FB Construction of Recreational Buildings	$94,030,465	Core Tech-Hdcc-Kajima LLC
Y1FZ Construction of Other Residential Buildings	$74,807,987	Suh'dutsing-Pilkington Construction JV II, LLC

Show all 36

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 $33.7 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 Y1 contractors in FY2024?

1. Clark Construction Group LLC ($1.79B), 2. Caddell Construction Co. (De), LLC ($948M), 3. Hensel Phelps Construction Co ($932M), 4. Bechtel Corp ($875M), 5. Dragados / Hawaiian Dredging / Orion JV ($791M), 6. Trumbull Corporation and Brayman Construction Corporation, A Joint Venture ($771M), 7. B.l. Harbert Holdings, L.L.C. ($579M), 8. Harper Construction Company Inc. ($497M), 9. Peter Kiewit Sons', Inc. ($492M), 10. 381 Constructors ($447M).

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