Top 100 Contractors in PSC C1: Architect-Engineering Services – Construction, FY2021

Name: Top 100 Contractors in PSC C1: Architect-Engineering Services – Construction, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 26% of FY2021 PSC C1 contract dollars

Contract obligations: $1,920,509,211 Net of deobligations, by contracts coded PSC C1 or a code under it
Contractors: 1,026 Parent companies with an obligation
Largest contractor: CCI Utility and Construction Services, LLC $85.1 million, 4.2% 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	CCI Utility and Construction Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$85,052,292	4.2%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since FY2020.
2	Mndpi Pacific JV Top agencies Navy (Department of the Navy)	$70,670,617	3.5%	Rank history: #5 in FY2022, #6 in FY2023, #19 in FY2024 and #32 in FY2025; up 19 since FY2020.
3	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top agencies DOS (Department of State)	$61,406,870	3.1%	Rank history: #1 in FY2022, #1 in FY2023, #3 in FY2024 and not on the FY2025 list; up 5 since FY2020.
4	City & County of Denver Top agencies DHS (Department of Homeland Security)	$55,860,360	2.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	Garco Construction, Inc. Top agencies Navy (Department of the Navy)	$54,155,116	2.7%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
6	Jacobs Engineering Group Inc. 12 awardees, including Ch2M Hill Constructors, Inc., Ch2M Hill - HDR JV and Ch2M Hill, Inc. Top agencies DOT (Department of Transportation) DOE (Department of Energy) USAF (Department of the Air Force)	$53,814,617	2.7%	Rank history: #6 in FY2022, #4 in FY2023, #52 in FY2024 and not on the FY2025 list; up 3 since FY2020.
7	WHR Architects, Inc. Through Page Southerland Page, Inc. Top agencies DOS (Department of State) DHS (Department of Homeland Security) DOI (Department of the Interior)	$39,192,880	2.0%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 296 since FY2020.
8	AECOM 14 awardees, including AECOM Technical Services, Inc., AECOM + Tetra TECH Joint Venture and AECOM International Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) DOT (Department of Transportation)	$37,612,399	1.9%	Rank history: #10 in FY2022, #5 in FY2023, #30 in FY2024 and #71 in FY2025; down 5 since FY2020.
9	JX Holdings Inc. Through Nippo Corporation Top agencies Navy (Department of the Navy)	$33,988,008	1.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
10	Michael Baker International & Huitt-Zollars JV Top agencies Army (Department of the Army)	$31,691,624	1.6%	Rank history: not on the FY2022 list, #24 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
11	Walsh Federal Joint Venture Top agencies Army (Department of the Army)	$28,007,700	1.4%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
12	Parsons Corporation Through Parsons Government Services Inc. Top agencies DOL (Department of Labor)	$27,489,484	1.4%	Rank history: #11 in FY2022, #3 in FY2023, #4 in FY2024 and #1 in FY2025; unchanged since FY2020.
13	Walga Ross Group JV Top agencies DOI (Department of the Interior)	$24,070,218	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Burns & Mcdonnell, Inc. 2 awardees, including Burns & Mcdonnell Engineering Company, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$22,175,712	1.1%	Rank history: #16 in FY2022, #8 in FY2023, #29 in FY2024 and not on the FY2025 list; up 42 since FY2020.
15	Noresco LLC Top agencies VA (Department of Veterans Affairs)	$22,132,237	1.1%	Rank history: #9 in FY2022, not on the FY2023–FY2024 lists and #70 in FY2025; up 19 since FY2020.
16	Krueck & Sexton Architects, Ltd Top agencies GSA (General Services Administration) SSA (Social Security Administration) HHS (Department of Health and Human Services)	$21,991,826	1.1%	Rank history: #84 in FY2022, not on the FY2023 list, #78 in FY2024 and not on the FY2025 list; up 87 since FY2020.
17	Paul Minneapolis-St Metropolitan Airports Commission Through Metropolitan Airports Commission Top agencies DHS (Department of Homeland Security)	$20,766,022	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
18	Black & Veatch Special Projects Corp. Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency)	$19,210,354	1.0%	Rank history: #30 in FY2022, #36 in FY2023, #76 in FY2024 and #8 in FY2025; up 23 since FY2020.
19	Dallas / Fort Worth International Airport Top agencies DHS (Department of Homeland Security)	$18,627,338	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	Lend Lease Corporation Ltd 2 awardees, including Lendlease (Us) Construction Inc. Top agencies Smithsonian (Smithsonian Institution)	$17,393,364	0.9%	Rank history: #32 in FY2022, #48 in FY2023, #54 in FY2024 and not on the FY2025 list; up 301 since FY2020.
21	Page-Loring LLC Top agencies Smithsonian (Smithsonian Institution)	$17,046,917	0.9%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
22	Jacobs / Ewingcole, A Joint Venture Top agencies Navy (Department of the Navy)	$16,874,942	0.8%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; down 17 since FY2020.
23	Missouri State of Through Missouri. City of Kansas City Top agencies DHS (Department of Homeland Security)	$14,616,008	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	RQ Construction, LLC Top agencies Navy (Department of the Navy)	$14,589,816	0.7%	Rank history: #8 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; down 20 since FY2020.
25	Jacobs / B&M A Joint Venture Top agencies Navy (Department of the Navy)	$13,999,053	0.7%	Rank history: not on the FY2022 list, #45 in FY2023, #55 in FY2024 and #23 in FY2025; up 74 since FY2020.
26	Hdr, Inc. 15 awardees, including HDR Environmental, Operations and Construction, Inc., HDR Engineering, Inc. and HDR Architecture, Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation) USAF (Department of the Air Force)	$13,701,324	0.7%	Rank history: #7 in FY2022, #19 in FY2023, #39 in FY2024 and #15 in FY2025; down 16 since FY2020.
27	Apogee Consulting Group, P.a. Top agencies VA (Department of Veterans Affairs)	$13,638,366	0.7%	Rank history: #14 in FY2022, #14 in FY2023, #70 in FY2024 and #12 in FY2025; up 16 since FY2020.
28	Commonwealth Ports Authority Top agencies DHS (Department of Homeland Security)	$13,552,746	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
29	Tehama-Llc and HDR Joint Venture LP Top agencies USAF (Department of the Air Force)	$12,795,195	0.6%	Rank history: #27 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
30	Spur Design, LLC Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation)	$12,150,350	0.6%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; up 64 since FY2020.
31	Life Science Logistics LLC Top agencies HHS (Department of Health and Human Services)	$12,016,886	0.6%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; down 18 since FY2020.
32	Clark Nexsen Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$11,578,479	0.6%	Rank history: not on the FY2022–FY2024 lists and #43 in FY2025; up 227 since FY2020.
33	GEO Bancroft Engineering LLC Top agencies VA (Department of Veterans Affairs)	$11,389,837	0.6%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; up 29 since FY2020.
34	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs)	$10,612,559	0.5%	Rank history: #67 in FY2022, #67 in FY2023, #44 in FY2024 and #57 in FY2025; up 6 since FY2020.
35	The Aleut Corporation Through Aleut Construction LLC Top agencies DOI (Department of the Interior)	$10,467,434	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Triple C-The A & E Group LLC Top agencies VA (Department of Veterans Affairs)	$10,365,774	0.5%	Rank history: #13 in FY2022, #23 in FY2023, #42 in FY2024 and not on the FY2025 list; up 16 since FY2020.
37	FNI Cowi & CDM Smith JV Top agencies Army (Department of the Army)	$10,173,503	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Valhalla Engineering Group, LLC Top agencies VA (Department of Veterans Affairs)	$10,172,553	0.5%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
39	Acela Architects + Engineers PC Top agencies VA (Department of Veterans Affairs)	$9,864,737	0.5%	Rank history: not on the FY2022 list, #68 in FY2023 and not on the FY2024–FY2025 lists; up 92 since FY2020.
40	Smithgroup Companies, Inc. 3 awardees, including Smithgroup, Inc. Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$9,317,780	0.5%	Rank history: not on the FY2022–FY2025 lists; up 307 since FY2020.
41	Atriax, P.L.L.C. Top agencies VA (Department of Veterans Affairs)	$9,293,632	0.5%	Rank history: not on the FY2022 list, #55 in FY2023 and not on the FY2024–FY2025 lists; up 44 since FY2020.
42	Dj&A, P.C. Top agencies DOT (Department of Transportation) USDA (Department of Agriculture) DOI (Department of the Interior)	$9,033,299	0.5%	Rank history: #60 in FY2022, not on the FY2023 list, #77 in FY2024 and not on the FY2025 list; up 181 since FY2020.
43	Guidon Design Inc. Top agencies VA (Department of Veterans Affairs)	$8,613,922	0.4%	Rank history: #76 in FY2022, #81 in FY2023, not on the FY2024 list and #91 in FY2025; up 31 since FY2020.
44	Vina E&C Investment and Construction JSC Top agencies USAID (US Agency for International Development)	$8,559,999	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	Enterprise Engineering, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$8,499,926	0.4%	Rank history: #46 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 53 since FY2020.
46	Four Tribes Enterprises, LLC Top agencies USAF (Department of the Air Force)	$8,475,171	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Michael Baker International, LLC 4 awardees Top agencies Navy (Department of the Navy) DOT (Department of Transportation) Army (Department of the Army)	$8,422,331	0.4%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
48	Fiber Business Solutions Group Inc. Top agencies DOI (Department of the Interior) DOT (Department of Transportation)	$8,210,689	0.4%	Rank history: not on the FY2022–FY2025 lists; up 130 since FY2020.
49	Trane U.S. Inc. Top agencies GSA (General Services Administration)	$8,189,087	0.4%	Rank history: not on the FY2022 list, #49 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
50	Ameresco Inc. 2 awardees, including Ameresco Select, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USDA (Department of Agriculture)	$8,141,929	0.4%	Rank history: #54 in FY2022, #70 in FY2023, not on the FY2024 list and #21 in FY2025; up 103 since FY2020.
51	The Dutra Group Top agencies Army (Department of the Army)	$7,936,503	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Pernix Group, Inc. Top agencies DOS (Department of State)	$7,870,689	0.4%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; down 30 since FY2020.
53	Toland Mizell Molnar LLC Top agencies VA (Department of Veterans Affairs)	$7,341,526	0.4%	Rank history: #37 in FY2022, #47 in FY2023, #43 in FY2024 and not on the FY2025 list; unchanged since FY2020.
54	Health Facilities Group LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$7,309,748	0.4%	Rank history: not on the FY2022–FY2025 lists; up 207 since FY2020.
55	Architects Hawaii Ltd Top agencies DOI (Department of the Interior)	$7,253,867	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Specialized Engineering Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$7,231,206	0.4%	Rank history: #36 in FY2022, #21 in FY2023, #65 in FY2024 and #44 in FY2025; up 295 since FY2020.
57	Desbuild Incorporated Top agencies DOS (Department of State)	$7,185,729	0.4%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
58	Hammel Green & Abrahamson Inc. Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration) GSA (General Services Administration)	$6,956,855	0.3%	Rank history: not on the FY2022–FY2025 lists; up 413 since FY2020.
59	Spees-Hernandez JV LLC Through Spees LLC Top agencies VA (Department of Veterans Affairs)	$6,936,539	0.3%	Rank history: #20 in FY2022, #9 in FY2023, #40 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
60	Romanyk Consulting Corporation Top agencies VA (Department of Veterans Affairs)	$6,857,985	0.3%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; up 142 since FY2020.
61	Fort Wayne Allen County Airport Authority Top agencies DHS (Department of Homeland Security)	$6,854,111	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	RTX Corporation Through Noresco, LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$6,784,147	0.3%	Rank history: not on the FY2022 list, #93 in FY2023 and not on the FY2024–FY2025 lists; down 55 since FY2020.
63	Gdm-Ae, Inc. Top agencies VA (Department of Veterans Affairs)	$6,594,899	0.3%	Rank history: #38 in FY2022, #32 in FY2023, #67 in FY2024 and #84 in FY2025; up 77 since FY2020.
64	Chickasaw Defense Logistics, LLC Top agencies Army (Department of the Army)	$6,374,241	0.3%	Rank history: #22 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; down 48 since FY2020.
65	Cherokee Nation 2 awardees, including Cherokee CRC LLC and Cherokee Federal Solutions, L.L.C. Top agencies DOI (Department of the Interior) DOT (Department of Transportation)	$6,324,311	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Compass Group Inc. Top agencies Army (Department of the Army)	$6,317,732	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Louis Berger U.S. Inc. 6 awardees, including WSP USA Inc. and WSP Canada Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy) Smithsonian (Smithsonian Institution)	$6,269,046	0.3%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; down 21 since FY2020.
68	AECOM + Tetra TECH Joint Venture Top agencies Army (Department of the Army)	$5,829,095	0.3%	Rank history: not on the FY2022–FY2024 lists and #53 in FY2025; new, not ranked in FY2020.
69	Rogers, Lovelock & Fritz, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$5,817,854	0.3%	Rank history: #19 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 99 since FY2020.
70	DAX / Gbab JV 3, LLC Top agencies VA (Department of Veterans Affairs)	$5,814,435	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Ayers / Saint / Gross, Incorporated Top agencies Smithsonian (Smithsonian Institution)	$5,736,544	0.3%	Rank history: #44 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; up 139 since FY2020.
72	FFE Environmental Services Inc. Top agencies VA (Department of Veterans Affairs)	$5,715,796	0.3%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; down 28 since FY2020.
73	Tepa Construction Solutions, LLC Top agencies Army (Department of the Army)	$5,557,933	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	N.k. Bhandari, Architecture & Engineering, P.C. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$5,510,896	0.3%	Rank history: not on the FY2022 list, #73 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
75	Alliance Consulting Group Seven Generations AE JV LLC Top agencies VA (Department of Veterans Affairs)	$5,384,891	0.3%	Rank history: not on the FY2022–FY2025 lists; up 97 since FY2020.
76	Transystems Corporation Top agencies DHS (Department of Homeland Security)	$5,346,059	0.3%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2020.
77	Jacksonville Aviation Authority Top agencies DHS (Department of Homeland Security)	$5,257,397	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Joseph David Associates LLC Top agencies DOI (Department of the Interior)	$5,221,985	0.3%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 285 since FY2020.
79	The Cannon Corporation 4 awardees, including Gkkworks Construction Services Top agencies VA (Department of Veterans Affairs)	$5,158,840	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Summer Consultants, Inc. Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$5,155,731	0.3%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
81	Miller-Remick, LLC Top agencies VA (Department of Veterans Affairs)	$5,145,468	0.3%	Rank history: #21 in FY2022, #41 in FY2023, #18 in FY2024 and #13 in FY2025; down 54 since FY2020.
82	Skidmore, Owings & Merrill LLP 2 awardees Top agencies GSA (General Services Administration)	$5,109,469	0.3%	Rank history: not on the FY2022–FY2025 lists; up 362 since FY2020.
83	Ontario International Airport Authority Top agencies DHS (Department of Homeland Security)	$5,071,176	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Dattner Architects DPC Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts)	$5,014,919	0.3%	Rank history: not on the FY2022 list, #78 in FY2023, #23 in FY2024 and #54 in FY2025; down 39 since FY2020.
85	Apogee-Cems JV LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$4,996,589	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Atkins Nuclear Secured Holdings Corporation 2 awardees, including Atkinsrealis USA Inc. and Atkins North America, Inc. Top agencies DOT (Department of Transportation) USAF (Department of the Air Force) Army (Department of the Army)	$4,944,149	0.2%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 103 since FY2020.
87	Mno-Bmadsen Through Seven Generations Architecture & Engineering LLC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) GSA (General Services Administration)	$4,722,503	0.2%	Rank history: #17 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; up 114 since FY2020.
88	NPD Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$4,708,186	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	CB Design Group, Inc. Top agencies VA (Department of Veterans Affairs)	$4,608,538	0.2%	Rank history: #25 in FY2022, #72 in FY2023, #79 in FY2024 and #99 in FY2025; down 31 since FY2020.
90	Stantec Incorporated 11 awardees, including Stantec Consulting Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$4,598,098	0.2%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
91	Puyenpa Services, LLC Top agencies DOI (Department of the Interior)	$4,495,175	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	RLF and Sherlock Smith and Adams JV Top agencies Navy (Department of the Navy)	$4,454,564	0.2%	Rank history: not on the FY2022–FY2025 lists; down 68 since FY2020.
93	State of Hawaii Through Department of Transportation State of Hawaii Top agencies DHS (Department of Homeland Security)	$4,341,404	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Jacobs Government Services Company Top agencies Navy (Department of the Navy) DFAS (Defense Finance and Accounting Service) MDA (DOD Missile Defense Agency)	$4,272,947	0.2%	Rank history: not on the FY2022 list, #39 in FY2023 and not on the FY2024–FY2025 lists; down 26 since FY2020.
95	Danner Construction Co Inc. Top agencies USAF (Department of the Air Force)	$4,206,836	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Rhode Island Airport Corp Top agencies DHS (Department of Homeland Security)	$4,171,281	0.2%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
97	Fellenzer Engineering LLP Top agencies VA (Department of Veterans Affairs)	$4,125,321	0.2%	Rank history: not on the FY2022–FY2025 lists; up 64 since FY2020.
98	Alesia Architecture PC Top agencies VA (Department of Veterans Affairs)	$4,115,993	0.2%	Rank history: #59 in FY2022, #57 in FY2023, #47 in FY2024 and not on the FY2025 list; down 14 since FY2020.
99	C.h. Guernsey & Company Top agencies Army (Department of the Army)	$4,096,441	0.2%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; down 40 since FY2020.
100	AE Works Ltd 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,075,765	0.2%	Rank history: #62 in FY2022, #17 in FY2023, #28 in FY2024 and #81 in FY2025; down 65 since FY2020.

Show 75 more

100 of 1,026 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	$301,775,460	B.l. Harbert Holdings, L.L.C.
C1DA Architect and Engineering – Construction: Hospitals and Infirmaries	$250,638,125	Noresco LLC
C1BE Architect and Engineering – Construction: Airport Terminals	$171,611,095	City & County of Denver
C1JZ Architect and Engineering – Construction: Miscellaneous Buildings	$143,946,785	Michael Baker International & Huitt-Zollars JV
C1QA Architect and Engineering – Construction: Restoration of Real Property (Public or Private)	$115,406,802	CCI Utility and Construction Services, LLC
C1AZ Architect and Engineering – Construction: Other Administrative Facilities/Service Buildings	$76,104,789	Hammel Green & Abrahamson Inc.
C1DZ Architect and Engineering – Construction: Other Hospital Buildings	$58,454,806	DAX / Gbab JV 3, LLC
C1BZ Architect and Engineering – Construction: Other Airfield Structures	$54,180,880	Jacobs / B&M A Joint Venture
C1JA Architect and Engineering – Construction: Museums and Exhibition Buildings	$52,141,745	Lend Lease Corporation Ltd
C1LB Architect and Engineering – Construction: Highways, Roads, Streets, Bridges, and Railways	$42,474,201	Dj&A, P.C.
C1PZ Architect and Engineering – Construction: Other Non-Building Facilities	$32,981,450	Jacobs / Ewingcole, A Joint Venture
C1EB Architect and Engineering – Construction: Maintenance Buildings	$27,957,716	Four Tribes Enterprises, LLC
C1DB Architect and Engineering – Construction: Laboratories and Clinics	$24,363,944	RLF and Sherlock Smith and Adams JV
C1KZ Architect and Engineering – Construction: Other Conservation and Development Facilities	$20,295,413	4K Global-Acc JV, LLC
C1LZ Architect and Engineering – Construction: Parking Facilities	$13,526,548	Turner Construction Company

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 $2 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC C1 contractors in FY2021?

1. CCI Utility and Construction Services, LLC ($85.1M), 2. Mndpi Pacific JV ($70.7M), 3. B.l. Harbert Holdings, L.L.C. ($61.4M), 4. City & County of Denver ($55.9M), 5. Garco Construction, Inc. ($54.2M), 6. Jacobs Engineering Group Inc. ($53.8M), 7. WHR Architects, Inc. ($39.2M), 8. AECOM ($37.6M), 9. JX Holdings Inc. ($34M), 10. Michael Baker International & Huitt-Zollars JV ($31.7M).

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