Top 100 Contractors in PSC C1: Architect-Engineering Services – Construction, FY2024

Name: Top 100 Contractors in PSC C1: Architect-Engineering Services – Construction, FY2024
Creator: GovTribe

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

The top 10 won 42% of FY2024 PSC C1 contract dollars

Contract obligations: $2,835,184,908 Net of deobligations, by contracts coded PSC C1 or a code under it
Contractors: 1,036 Parent companies with an obligation
Largest contractor: Brasfield & Gorrie LLC $512 million, 17.0% 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	Brasfield & Gorrie LLC Top agencies DOJ (Department of Justice)	$512,000,000	17.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
2	CCI Utility and Construction Services, LLC Top agencies Army (Department of the Army)	$132,151,846	4.4%	Rank history: #1 in FY2021, #3 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top agencies DOJ (Department of Justice) DOS (Department of State)	$118,415,195	3.9%	Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2023 and not on the FY2025 list; down 2 since FY2023.
4	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. and Parsons Government Services Inc. Top agencies DOT (Department of Transportation) DOL (Department of Labor) USAF (Department of the Air Force)	$107,462,174	3.6%	Rank history: #12 in FY2021, #11 in FY2022, #3 in FY2023 and #1 in FY2025; down 1 since FY2023.
5	Gilbane Federal Top agencies USAF (Department of the Air Force)	$98,084,224	3.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
6	Jacobs Government Services Company 10 awardees, including Jacobs / B&V, A Joint Venture (Federal Services), Jacobs Engineering Group Inc. and Jacobs Project Management Co Top agencies Navy (Department of the Navy) Army (Department of the Army) DOT (Department of Transportation)	$77,735,536	2.6%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2025; up 316 since FY2023.
7	Deployed Resources LLC Top agencies DHS (Department of Homeland Security)	$73,371,334	2.4%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
8	Arcadis U.s., Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) DHS (Department of Homeland Security)	$58,272,570	1.9%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
9	Smithgroup, Inc. Top agencies HHS (Department of Health and Human Services) GSA (General Services Administration)	$50,172,990	1.7%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
10	Ptsi Managed Services Inc. Top agencies DOT (Department of Transportation)	$46,970,992	1.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
11	AECOM Technical Services, Inc. Top agencies USAID (US Agency for International Development) DOT (Department of Transportation) Army (Department of the Army)	$43,516,271	1.4%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2025; new.
12	Black & Veatch-Jacobs JV Top agencies Navy (Department of the Navy)	$34,377,532	1.1%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
13	Obera LLC Top agencies USAF (Department of the Air Force)	$30,594,897	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
14	Halff-Mead & Hunt JV, LLC Through Halff Associates, Inc. Top agencies Army (Department of the Army)	$30,364,890	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
15	Peter Kiewit Sons', Inc. Through Weeks Marine, Inc. Top agencies Army (Department of the Army)	$30,063,577	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Burns & Mcdonnell Engineering Company, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$25,947,807	0.9%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
17	WSM Pacific Siop, A Joint Venture Top agencies Navy (Department of the Navy)	$24,101,281	0.8%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2025; new.
18	Miller-Remick, LLC Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration)	$24,036,106	0.8%	Rank history: #81 in FY2021, #21 in FY2022, #41 in FY2023 and #13 in FY2025; up 23 since FY2023.
19	Mndpi Pacific JV Top agencies Navy (Department of the Navy)	$22,062,548	0.7%	Rank history: #2 in FY2021, #5 in FY2022, #6 in FY2023 and #32 in FY2025; down 13 since FY2023.
20	Grunley Construction Co., Inc. Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) Smithsonian (Smithsonian Institution)	$21,832,250	0.7%	Rank history: not on the FY2021 list, #2 in FY2022, not on the FY2023 list and not on the FY2025 list; up 154 since FY2023.
21	LEO A. Daly LLC Top agencies VA (Department of Veterans Affairs)	$21,674,037	0.7%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2025; new.
22	Golder Europe Service Centre SRL 4 awardees, including WSP USA Inc. and WSP USA Solutions Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation) Smithsonian (Smithsonian Institution)	$20,520,384	0.7%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023 and #30 in FY2025; up 3 since FY2023.
23	Dattner Architects DPC Top agencies GSA (General Services Administration) DOJ (Department of Justice) SSA (Social Security Administration)	$19,749,440	0.7%	Rank history: #84 in FY2021, not on the FY2022 list, #78 in FY2023 and #54 in FY2025; up 55 since FY2023.
24	Enterprise Engineering, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$19,575,504	0.7%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
25	Awen Solutions Group, LLC Top agencies VA (Department of Veterans Affairs)	$18,031,533	0.6%	Rank history: not on the FY2021 list, #33 in FY2022, #35 in FY2023 and #79 in FY2025; up 10 since FY2023.
26	Reid Middleton, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$17,731,379	0.6%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list and #35 in FY2025; up 183 since FY2023.
27	Jacobs / B&V, A Joint Venture (Federal Services) Top agencies Navy (Department of the Navy)	$16,468,131	0.5%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and not on the FY2025 list; down 16 since FY2023.
28	AE Works Ltd 2 awardees Top agencies VA (Department of Veterans Affairs)	$15,149,545	0.5%	Rank history: #100 in FY2021, #62 in FY2022, #17 in FY2023 and #81 in FY2025; down 11 since FY2023.
29	Burns & Mcdonnell, Inc. 3 awardees, including Burns & Mcdonnell Engineering Company, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Smithsonian (Smithsonian Institution)	$14,408,515	0.5%	Rank history: #14 in FY2021, #16 in FY2022, #8 in FY2023 and not on the FY2025 list; down 21 since FY2023.
30	AECOM 13 awardees, including Stantec Gs-Aecom Pacific JV, AECOM Services, Inc. and AECOM Smith Carter Joint Venture Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$14,052,961	0.5%	Rank history: #8 in FY2021, #10 in FY2022, #5 in FY2023 and #71 in FY2025; down 25 since FY2023.
31	RDC JPA Architecture, L.L.L.P. Top agencies VA (Department of Veterans Affairs)	$13,795,659	0.5%	Rank history: not on the FY2021 list, #26 in FY2022, #61 in FY2023 and #64 in FY2025; up 30 since FY2023.
32	Spur Design LLC Top agencies VA (Department of Veterans Affairs)	$13,768,209	0.5%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #27 in FY2025; up 24 since FY2023.
33	Valhalla Engineering Group LLC Top agencies VA (Department of Veterans Affairs)	$13,468,542	0.4%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and #34 in FY2025; up 27 since FY2023.
34	The Johnson-Mcadams Firm, P.a. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) DOI (Department of the Interior)	$13,027,388	0.4%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #40 in FY2025; unchanged since FY2023.
35	Teya Support Services LLC Top agencies Navy (Department of the Navy)	$12,992,601	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
36	Venesco LLC Top agencies DOS (Department of State)	$12,523,469	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
37	Encore Dredging Founding Partners LLC Through Inland Dredging Company, L.L.C. Top agencies Army (Department of the Army)	$11,786,433	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
38	Romanyk Consulting Corporation Top agencies VA (Department of Veterans Affairs)	$11,715,141	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 309 since FY2023.
39	Hdr, Inc. 15 awardees, including HDR Engineering, Inc., HDR Environmental, Operations and Construction, Inc. and HDR Architecture, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$11,614,844	0.4%	Rank history: #26 in FY2021, #7 in FY2022, #19 in FY2023 and #15 in FY2025; down 20 since FY2023.
40	Spees-Hernandez JV LLC Through Spees LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$11,137,599	0.4%	Rank history: #59 in FY2021, #20 in FY2022, #9 in FY2023 and #18 in FY2025; down 31 since FY2023.
41	Black & Veatch - Zapata Joint Venture Top agencies USSOCOM (United States Special Operations Command)	$10,990,218	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
42	Triple C-The A & E Group LLC Top agencies VA (Department of Veterans Affairs)	$10,743,128	0.4%	Rank history: #36 in FY2021, #13 in FY2022, #23 in FY2023 and not on the FY2025 list; down 19 since FY2023.
43	Toland Mizell Molnar LLC Top agencies VA (Department of Veterans Affairs)	$10,450,903	0.3%	Rank history: #53 in FY2021, #37 in FY2022, #47 in FY2023 and not on the FY2025 list; up 4 since FY2023.
44	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs)	$10,431,926	0.3%	Rank history: #34 in FY2021, #67 in FY2022, #67 in FY2023 and #57 in FY2025; up 23 since FY2023.
45	Emcor Group Inc. Through Emcor Government Services, Inc. Top agencies DOT (Department of Transportation)	$10,413,183	0.3%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and #37 in FY2025; up 39 since FY2023.
46	Mdpac JV Top agencies Navy (Department of the Navy)	$9,876,912	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 112 since FY2023.
47	Alesia Architecture PC Top agencies VA (Department of Veterans Affairs)	$9,840,507	0.3%	Rank history: #98 in FY2021, #59 in FY2022, #57 in FY2023 and not on the FY2025 list; up 10 since FY2023.
48	Amentum Services, Inc. Top agencies Army (Department of the Army) USAID (US Agency for International Development)	$9,555,695	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	Practice for Architecture Urbanism DPC Top agencies DOT (Department of Transportation)	$9,550,000	0.3%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2025; up 134 since FY2023.
50	Ewing Cole Inc. Top agencies Smithsonian (Smithsonian Institution) EPA (Environmental Protection Agency)	$9,158,956	0.3%	Rank history: not on the FY2021 list, #58 in FY2022, #63 in FY2023 and #45 in FY2025; up 13 since FY2023.
51	Merrick & Company Top agencies Army (Department of the Army) USDA (Department of Agriculture) USAF (Department of the Air Force)	$8,994,098	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
52	Jacobs Engineering Group Inc. 7 awardees, including Jacobs Government Services Co Top agencies DOT (Department of Transportation) Navy (Department of the Navy) Army (Department of the Army)	$8,985,228	0.3%	Rank history: #6 in FY2021, #6 in FY2022, #4 in FY2023 and not on the FY2025 list; down 48 since FY2023.
53	Trane U.s. Inc. Top agencies GSA (General Services Administration)	$8,898,589	0.3%	Rank history: not on the FY2021 list, #39 in FY2022, not on the FY2023 list and #38 in FY2025; returned.
54	Lend Lease Corporation Ltd Through Lendlease (Us) Construction Inc. Top agencies Smithsonian (Smithsonian Institution)	$8,869,028	0.3%	Rank history: #20 in FY2021, #32 in FY2022, #48 in FY2023 and not on the FY2025 list; down 6 since FY2023.
55	Jacobs / B&M A Joint Venture Top agencies Navy (Department of the Navy)	$8,478,634	0.3%	Rank history: #25 in FY2021, not on the FY2022 list, #45 in FY2023 and #23 in FY2025; down 10 since FY2023.
56	Seven Generations Architecture & Engineering LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services) Army (Department of the Army)	$8,271,621	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	BL Harbert International LLC Top agencies DOS (Department of State)	$8,106,226	0.3%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
58	Summer Consultants Inc Top agencies GSA (General Services Administration) Navy (Department of the Navy) SSA (Social Security Administration)	$7,996,539	0.3%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and not on the FY2025 list; down 14 since FY2023.
59	Continuity Global Solutions LLC Top agencies Army (Department of the Army)	$7,907,449	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Rogers Lovelock & Fritz Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$7,777,527	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; up 101 since FY2023.
61	Annum Architects, Inc. Top agencies Smithsonian (Smithsonian Institution)	$7,599,130	0.3%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023 and not on the FY2025 list; up 5 since FY2023.
62	Health Facility Solutions Company Top agencies VA (Department of Veterans Affairs)	$7,527,734	0.3%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2025; new.
63	Unami LLC 2 awardees, including Unami HWH Joint Ventures, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$7,397,228	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Gushiken-Pae JV Top agencies Navy (Department of the Navy)	$7,368,856	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 140 since FY2023.
65	Specialized Engineering Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$7,258,715	0.2%	Rank history: #56 in FY2021, #36 in FY2022, #21 in FY2023 and #44 in FY2025; down 44 since FY2023.
66	Tehama, LLC Top agencies USAF (Department of the Air Force)	$7,232,836	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	Gdm-Ae, Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$7,218,759	0.2%	Rank history: #63 in FY2021, #38 in FY2022, #32 in FY2023 and #84 in FY2025; down 35 since FY2023.
68	GEO. Bancroft Engineering LLC Top agencies VA (Department of Veterans Affairs)	$7,150,944	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; up 35 since FY2023.
69	Vali Cooper International LLC Top agencies VA (Department of Veterans Affairs)	$7,148,353	0.2%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #59 in FY2025; unchanged since FY2023.
70	Apogee Consulting Group, P.a. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$6,620,872	0.2%	Rank history: #27 in FY2021, #14 in FY2022, #14 in FY2023 and #12 in FY2025; down 56 since FY2023.
71	Reasor-Asturian JV, LLC Top agencies USDA (Department of Agriculture)	$6,522,177	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	National Facility Solutions LLC Through Enviros LLC Top agencies VA (Department of Veterans Affairs)	$6,499,409	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 82 since FY2023.
73	Stantec Inc. 6 awardees, including Stantec Consulting Services Inc. and Sia-Stantec LLC Top agencies USSOCOM (United States Special Operations Command) DOT (Department of Transportation) DOE (Department of Energy)	$6,379,149	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #41 in FY2025; up 4 since FY2023.
74	Woolpert-Rs&H LLC Top agencies Army (Department of the Army)	$6,336,175	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	Southeast Cherokee Construction, Inc. Top agencies USAF (Department of the Air Force)	$6,327,380	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Black & Veatch Special Projects Corp. Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$6,188,901	0.2%	Rank history: #18 in FY2021, #30 in FY2022, #36 in FY2023 and #8 in FY2025; down 40 since FY2023.
77	Dj&A, P.C. Top agencies USDA (Department of Agriculture) DOT (Department of Transportation) DOI (Department of the Interior)	$6,162,883	0.2%	Rank history: #42 in FY2021, #60 in FY2022, not on the FY2023 list and not on the FY2025 list; up 39 since FY2023.
78	Krueck & Sexton Architects, Ltd Top agencies GSA (General Services Administration) SSA (Social Security Administration) HHS (Department of Health and Human Services)	$5,856,967	0.2%	Rank history: #16 in FY2021, #84 in FY2022, not on the FY2023 list and not on the FY2025 list; up 107 since FY2023.
79	CB Design Group, Inc. Top agencies VA (Department of Veterans Affairs)	$5,847,497	0.2%	Rank history: #89 in FY2021, #25 in FY2022, #72 in FY2023 and #99 in FY2025; down 7 since FY2023.
80	Page Southerland Page, Inc. 3 awardees, including Page Federal Solutions, LLC Top agencies VA (Department of Veterans Affairs) Smithsonian (Smithsonian Institution) DHS (Department of Homeland Security)	$5,780,973	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 283 since FY2023.
81	Wiley Wilson Burns & Mcdonnell Joint Venture Top agencies Navy (Department of the Navy)	$5,748,096	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 42 since FY2023.
82	FFE - Heapy Jv-Ii, LLC Top agencies VA (Department of Veterans Affairs)	$5,672,717	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Above Group Inc. Top agencies VA (Department of Veterans Affairs)	$5,598,906	0.2%	Rank history: not on the FY2021 list, #77 in FY2022, #38 in FY2023 and #29 in FY2025; down 45 since FY2023.
84	Kisby-Lees Mechanical LLC Top agencies DOT (Department of Transportation)	$5,574,683	0.2%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and not on the FY2025 list; down 5 since FY2023.
85	Austin Brockenbrough & Associates LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,450,664	0.2%	Rank history: not on the FY2021 list, #49 in FY2022, not on the FY2023 list and #77 in FY2025; up 48 since FY2023.
86	Nicklaus Engineering, Inc. 2 awardees Top agencies USAF (Department of the Air Force)	$5,315,264	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 48 since FY2023.
87	Perez A Professional Corp Top agencies USAID (US Agency for International Development)	$5,300,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	Cremer Global Services, Incorporated Top agencies DHS (Department of Homeland Security)	$5,267,790	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 205 since FY2023.
89	Dj's Mechanical, Inc. Top agencies DOT (Department of Transportation)	$4,923,493	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 29 since FY2023.
90	Northeast Infrastructure LLC Top agencies VA (Department of Veterans Affairs)	$4,884,842	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and #97 in FY2025; down 15 since FY2023.
91	Mtfa Architecture, P.L.L.C. Top agencies Navy (Department of the Navy) AOUSC (Administrative Office of the U.S. Courts) GSA (General Services Administration)	$4,877,622	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 33 since FY2023.
92	CB Design & Huitt Zollars Joint Venture, LLC Top agencies VA (Department of Veterans Affairs)	$4,785,832	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
93	Biscayne Contractors, Inc. Top agencies DOJ (Department of Justice)	$4,663,860	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Cherokee Federal Solutions, L.L.C. Top agencies DOT (Department of Transportation)	$4,658,551	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 36 since FY2023.
95	DAV Energy Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$4,609,771	0.2%	Rank history: not on the FY2021 list, #53 in FY2022, #53 in FY2023 and #47 in FY2025; down 42 since FY2023.
96	Moffatt & Nichol - Burns & Mcdonnell Hawaii Top agencies Navy (Department of the Navy)	$4,575,825	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Argus CJW JV 3 LLC Top agencies USAF (Department of the Air Force)	$4,506,818	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Fathom Architecture, LLC Top agencies Navy (Department of the Navy)	$4,505,142	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, not on the FY2023 list and #86 in FY2025; up 77 since FY2023.
99	Mason & Hanger + Mead & Hunt Joint Venture Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$4,473,519	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	RGD Consulting Engineers Orlando, LLC Top agencies VA (Department of Veterans Affairs)	$4,471,081	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

Show 75 more

100 of 1,036 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC C1

Code	Net obligations	Largest contractor
C1AA Architect and Engineering – Construction: Office Buildings	$809,742,921	Brasfield & Gorrie LLC
C1DA Architect and Engineering – Construction: Hospitals and Infirmaries	$369,621,919	Smithgroup, Inc.
C1BZ Architect and Engineering – Construction: Other Airfield Structures	$279,623,670	Parsons Corporation
C1JZ Architect and Engineering – Construction: Miscellaneous Buildings	$210,694,982	Deployed Resources LLC
C1QA Architect and Engineering – Construction: Restoration of Real Property (Public or Private)	$162,097,378	CCI Utility and Construction Services, LLC
C1AZ Architect and Engineering – Construction: Other Administrative Facilities/Service Buildings	$147,109,858	Black & Veatch-Jacobs JV
C1PZ Architect and Engineering – Construction: Other Non-Building Facilities	$100,498,910	Arcadis U.s., Inc.
C1EB Architect and Engineering – Construction: Maintenance Buildings	$84,125,238	Obera LLC
C1DZ Architect and Engineering – Construction: Other Hospital Buildings	$55,854,876	Miller-Remick, LLC
C1LB Architect and Engineering – Construction: Highways, Roads, Streets, Bridges, and Railways	$52,277,835	Hdr, Inc.
C1JA Architect and Engineering – Construction: Museums and Exhibition Buildings	$48,480,781	Ewing Cole Inc.
C1DB Architect and Engineering – Construction: Laboratories and Clinics	$31,096,380	The Johnson-Mcadams Firm, P.a.
C1FA Architect and Engineering – Construction: Family Housing Facilities	$11,539,521	Esc-Dpi JV

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 $3.01 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 C1 contractors in FY2024?

1. Brasfield & Gorrie LLC ($512M), 2. CCI Utility and Construction Services, LLC ($132M), 3. B.l. Harbert Holdings, L.L.C. ($118M), 4. Parsons Corporation ($107M), 5. Gilbane Federal ($98.1M), 6. Jacobs Government Services Company ($77.7M), 7. Deployed Resources LLC ($73.4M), 8. Arcadis U.s., Inc. ($58.3M), 9. Smithgroup, Inc. ($50.2M), 10. Ptsi Managed Services Inc. ($47M).

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