Top 100 Contractors in PSC C: Architect/Engineer Services, FY2023

Name: Top 100 Contractors in PSC C: Architect/Engineer Services, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 30% of FY2023 PSC C contract dollars

Contract obligations: $8,304,516,301 Net of deobligations, by contracts coded PSC C or a code under it
Contractors: 2,119 Parent companies with an obligation
Largest contractor: B.l. Harbert Holdings, L.L.C. $840 million, 9.6% 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	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top agencies DOS (Department of State)	$839,817,478	9.6%	Rank history: #11 in FY2021, #1 in FY2022, #11 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	AECOM 28 awardees, including AECOM Technical Services, Inc., AECOM International Inc. and Aecom-Baker-Cardno Navfac Atlantic Planning JV Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$516,694,369	5.9%	Rank history: #3 in FY2021, #2 in FY2022, #14 in FY2024 and #13 in FY2025; unchanged since FY2022.
3	Jacobs Engineering Group Inc. 29 awardees, including Ch2M Hill, Inc., JE Architects / Engineers, P.C. and Jacobs Government Services Company Top agencies Navy (Department of the Navy) Army (Department of the Army) DOT (Department of Transportation)	$302,036,669	3.5%	Rank history: #4 in FY2021, #4 in FY2022, #49 in FY2024 and not on the FY2025 list; up 1 since FY2022.
4	Hdr, Inc. 40 awardees, including HDR Environmental, Operations and Construction, Inc., HDR Engineering, Inc. and HDR Architecture, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$233,187,520	2.7%	Rank history: #2 in FY2021, #3 in FY2022, #5 in FY2024 and #3 in FY2025; down 1 since FY2022.
5	Burns & Mcdonnell, Inc. 3 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)	$170,181,203	1.9%	Rank history: #6 in FY2021, #8 in FY2022, #21 in FY2024 and not on the FY2025 list; up 3 since FY2022.
6	Tetra Tech, Inc. 21 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$134,075,521	1.5%	Rank history: #5 in FY2021, #6 in FY2022, #12 in FY2024 and #10 in FY2025; unchanged since FY2022.
7	CCI Utility and Construction Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$120,597,147	1.4%	Rank history: #8 in FY2021, #7 in FY2022, #8 in FY2024 and #8 in FY2025; unchanged since FY2022.
8	Parsons Corporation 5 awardees, including Ptsi Managed Services Inc., Parsons Government Services Inc. and Parsons-Versar Joint Venture Top agencies DOT (Department of Transportation) Army (Department of the Army) USAF (Department of the Air Force)	$110,094,240	1.3%	Rank history: #15 in FY2021, #20 in FY2022, #10 in FY2024 and #4 in FY2025; up 12 since FY2022.
9	Jacobs Government Services Company 6 awardees, including Jacobs Engineering Group Inc., Ch2M Hill Constructors, Inc. and Ch2M Hill, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) OSD (Office of the Secretary of Defense)	$110,016,467	1.3%	Rank history: #23 in FY2021, #15 in FY2022, #4 in FY2024 and #1 in FY2025; up 6 since FY2022.
10	The Compass PTS JV Top agencies DHS (Department of Homeland Security)	$88,810,048	1.0%	Rank history: #7 in FY2021, #26 in FY2022, #35 in FY2024 and #57 in FY2025; up 16 since FY2022.
11	Stantec Inc. 18 awardees, including Stantec Consulting Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$74,875,132	0.9%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and #15 in FY2025; new.
12	Advancing Resilience In Communities Top agencies DHS (Department of Homeland Security)	$72,581,111	0.8%	Rank history: not on the FY2021 list, #12 in FY2022, #27 in FY2024 and #74 in FY2025; unchanged since FY2022.
13	Black & Veatch Special Projects Corp. 3 awardees, including Black & Veatch - GEI JV Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$67,445,435	0.8%	Rank history: #12 in FY2021, #41 in FY2022, #23 in FY2024 and #12 in FY2025; up 28 since FY2022.
14	HP Enterprise Services LLC Through Peraton Inc. Top agencies NASA (National Aeronautics and Space Administration)	$67,324,770	0.8%	Rank history: not on the FY2021 list, #35 in FY2022 and not on the FY2024–FY2025 lists; up 21 since FY2022.
15	RBA Group the 3 awardees, including NV5 Geospatial, Inc., Geodynamics LLC and NV5 Consultants, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$66,752,617	0.8%	Rank history: #22 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
16	Resolution Consultants - An Aecom-Ensafe Joint Venture Top agencies Navy (Department of the Navy)	$65,218,435	0.7%	Rank history: not on the FY2021 list, #92 in FY2022, #22 in FY2024 and #17 in FY2025; up 76 since FY2022.
17	Manson Construction Co. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy)	$64,750,000	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
18	WSM Pacific Siop, A Joint Venture Top agencies Navy (Department of the Navy)	$64,279,957	0.7%	Rank history: not on the FY2021 list, #23 in FY2022, #13 in FY2024 and #9 in FY2025; up 5 since FY2022.
19	Starr II, A Joint Venture Top agencies DHS (Department of Homeland Security)	$61,129,769	0.7%	Rank history: #10 in FY2021, #22 in FY2022, #29 in FY2024 and #56 in FY2025; up 3 since FY2022.
20	The Dewberry Companies LC 3 awardees, including Dewberry Engineers Inc. and Dewberry Consultants LLC Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$54,716,859	0.6%	Rank history: #43 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
21	Galveston Coastal Services A Joint Venture Top agencies Army (Department of the Army)	$48,063,708	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 244 since FY2022.
22	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$47,166,673	0.5%	Rank history: #35 in FY2021, #37 in FY2022, #28 in FY2024 and #27 in FY2025; up 15 since FY2022.
23	Pond-Cdm Smith JV LP Top agencies USAF (Department of the Air Force)	$46,569,123	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 209 since FY2022.
24	Mndpi Pacific JV Top agencies Navy (Department of the Navy)	$46,390,077	0.5%	Rank history: #9 in FY2021, #10 in FY2022, #56 in FY2024 and not on the FY2025 list; down 14 since FY2022.
25	Michael Baker International, LLC 6 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$45,588,693	0.5%	Rank history: #27 in FY2021, #31 in FY2022, #18 in FY2024 and #33 in FY2025; up 6 since FY2022.
26	Jacobs / B&V, A Joint Venture (Federal Services) Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$43,471,785	0.5%	Rank history: not on the FY2021 list, #33 in FY2022, #82 in FY2024 and not on the FY2025 list; up 7 since FY2022.
27	HOK Group, Inc. 3 awardees, including Hellmuth, Obata & Kassabaum, Inc. and Hellmuth, Obata & Kassabaum, P.C. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) GSA (General Services Administration)	$39,747,149	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 158 since FY2022.
28	Arcadis N.V. 3 awardees, including Arcadis U.s., Inc. and Arcadis-Bergmann Lakes & Rivers JV Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$36,309,884	0.4%	Rank history: #25 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
29	Ciri Development Corporation 3 awardees, including North Wind Construction Services, LLC and North Wind Site Services, LLC Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$35,576,390	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Camp Dresser & Mckee Inc. 5 awardees, including CDM Federal Programs Corporation, CDM International Inc. and CDM Smith Inc. Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$35,517,964	0.4%	Rank history: #17 in FY2021, #21 in FY2022, #86 in FY2024 and not on the FY2025 list; down 9 since FY2022.
31	Spees-Hernandez JV LLC Through Spees LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$34,706,564	0.4%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2024 and #70 in FY2025; up 169 since FY2022.
32	Merrick-Rs & H Joint Venture LLP Top agencies Navy (Department of the Navy)	$33,997,092	0.4%	Rank history: #90 in FY2021, not on the FY2022 list, not on the FY2024 list and #65 in FY2025; up 114 since FY2022.
33	Apogee Consulting Group, P.a. Top agencies VA (Department of Veterans Affairs)	$33,310,677	0.4%	Rank history: #67 in FY2021, #50 in FY2022, not on the FY2024 list and #51 in FY2025; up 17 since FY2022.
34	Weeks Marine Inc. Top agencies Army (Department of the Army)	$33,113,700	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Golder Europe Service Centre SRL 4 awardees, including WSP USA Inc., WSP Italia S.R.L. and WSP USA Solutions Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) EPA (Environmental Protection Agency)	$32,614,472	0.4%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2024 and #20 in FY2025; new.
36	Clark Nexsen Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation) Army (Department of the Army)	$30,941,256	0.4%	Rank history: #33 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
37	RQ Construction, LLC Top agencies Navy (Department of the Navy)	$29,346,632	0.3%	Rank history: #66 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
38	SC Companies, Inc. 4 awardees, including Stanley Consultants, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$28,120,726	0.3%	Rank history: #30 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; down 29 since FY2022.
39	Desbuild Incorporated Top agencies DOS (Department of State)	$27,893,176	0.3%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #86 in FY2025; new.
40	Insight Environmental Engineering & Construction, Inc. Top agencies USAF (Department of the Air Force)	$27,144,752	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	AE Works Ltd 2 awardees Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) HHS (Department of Health and Human Services)	$27,021,991	0.3%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and not on the FY2025 list; up 62 since FY2022.
42	Jacobs / B&M A Joint Venture Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$26,998,508	0.3%	Rank history: #59 in FY2021, not on the FY2022 list, #64 in FY2024 and #26 in FY2025; up 67 since FY2022.
43	Kierantimberlake LLC Top agencies DOS (Department of State)	$26,806,489	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Ghd-Cowi Joint Venture Top agencies Navy (Department of the Navy)	$26,712,061	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and #46 in FY2025; new.
45	P & R JV Top agencies Army (Department of the Army)	$26,238,474	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Asmd LLC Top agencies Navy (Department of the Navy)	$26,062,429	0.3%	Rank history: #45 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
47	Ea-Baker JV Top agencies DLA (Defense Logistics Agency)	$25,977,477	0.3%	Rank history: #41 in FY2021, #44 in FY2022, #61 in FY2024 and not on the FY2025 list; down 3 since FY2022.
48	The Whiting-Turner Contracting Company Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$25,790,296	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
49	Woolpert, Inc. 5 awardees, including Geomatics Data Solutions, A Woolpert Company, LLC and Waller, Todd & Sadler, A Woolpert Company, LLC Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$25,030,646	0.3%	Rank history: #32 in FY2021, #19 in FY2022, #37 in FY2024 and #21 in FY2025; down 30 since FY2022.
50	The Johnson-Mcadams Firm, P.a. Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) USAF (Department of the Air Force)	$24,727,303	0.3%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #75 in FY2025; up 90 since FY2022.
51	LEO a Daly and Huitt Zollars, a Joint Venture 6 awardees, including LEO A. Daly LLC and LEO A Daly + Nbbj JV Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation) NARA (National Archives and Records Administration)	$24,118,164	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 128 since FY2022.
52	Cardno GS - AECOM Pacific JV Top agencies Navy (Department of the Navy)	$24,100,056	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 99 since FY2022.
53	Jacobs / Ewingcole, A Joint Venture Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$24,047,980	0.3%	Rank history: #20 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; down 28 since FY2022.
54	Michael Baker International & Huitt-Zollars JV Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$23,377,652	0.3%	Rank history: #29 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 48 since FY2022.
55	Jacobs / Hdr, A Joint Venture (Navfac Atlantic Srm) Top agencies Navy (Department of the Navy)	$22,875,374	0.3%	Rank history: #18 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 219 since FY2022.
56	Tecnica Y Proyectos SA Through Tecnica Y Proyectos Typsa for Engineering Services Top agencies Army (Department of the Army)	$22,288,929	0.3%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2024 and not on the FY2025 list; new.
57	WSP USA Solutions Inc. Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DOI (Department of the Interior)	$21,856,333	0.2%	Rank history: not on the FY2021 list, #32 in FY2022, #17 in FY2024 and not on the FY2025 list; down 25 since FY2022.
58	Nicklaus Engineering, Inc. 3 awardees, including Multi-Mac JV and Nicklaus Amec JV Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$21,652,127	0.2%	Rank history: #57 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
59	The Day & Zimmermann Group, Inc. 2 awardees, including The Mason & Hanger Group Inc. and Hankins and Anderson, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOS (Department of State)	$21,338,945	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 107 since FY2022.
60	Power Engineers Inc. Top agencies Navy (Department of the Navy)	$21,184,665	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2024 and not on the FY2025 list; up 72 since FY2022.
61	Kwaan-Nasco Joint Venture Top agencies USAF (Department of the Air Force)	$21,147,288	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Mantech International Corporation Through Mantech SRS Technologies, Inc. Top agencies Navy (Department of the Navy)	$21,018,814	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 98 since FY2022.
63	MPR Associates, Inc. Top agencies Army (Department of the Army)	$20,926,900	0.2%	Rank history: #64 in FY2021, #72 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
64	GEO Consultants Corporation 2 awardees, including GEO / Stanley Joint Venture 2 Top agencies Army (Department of the Army) DOI (Department of the Interior) USDA (Department of Agriculture)	$20,506,707	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 277 since FY2022.
65	Specialized Engineering Solutions Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$20,264,585	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 64 since FY2022.
66	North Wind Construction Services, LLC Top agencies DOE (Department of Energy)	$20,258,040	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 116 since FY2022.
67	Enterprise Engineering, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Army (Department of the Army)	$20,097,315	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 54 since FY2022.
68	GHD Setiadi Kaula Joint Venture Top agencies Navy (Department of the Navy)	$19,541,883	0.2%	Rank history: not on the FY2021 list, #51 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
69	Stratton Straub Joint Venture LLC Top agencies VA (Department of Veterans Affairs)	$19,488,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
70	Baker-Aecom Environmental Compliance JV Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$19,283,676	0.2%	Rank history: not on the FY2021 list, #96 in FY2022, #98 in FY2024 and #66 in FY2025; up 26 since FY2022.
71	Green Powered Technology LLC Top agencies USAID (US Agency for International Development)	$18,929,733	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 411 since FY2022.
72	MBF Architects, P.a. Top agencies Navy (Department of the Navy) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$18,884,050	0.2%	Rank history: not on the FY2021 list, #70 in FY2022, #53 in FY2024 and #85 in FY2025; down 2 since FY2022.
73	Fugro Geospatial Inc. 2 awardees, including Fugro USA Land, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) Commerce (Department of Commerce)	$18,831,531	0.2%	Rank history: #74 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
74	Dj&A, P.C. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) DOT (Department of Transportation)	$18,699,780	0.2%	Rank history: #47 in FY2021, #45 in FY2022, #71 in FY2024 and not on the FY2025 list; down 29 since FY2022.
75	Ch2M Hill Clark Nexsen Energy Partners JV Top agencies Navy (Department of the Navy)	$18,557,206	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, #38 in FY2024 and #78 in FY2025; up 13 since FY2022.
76	Wood Environment & Infrastructure Solutions Inc. 2 awardees, including WSP USA Environment & Infrastructure Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$18,316,459	0.2%	Rank history: #60 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
77	Merrick & Company 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) USDA (Department of Agriculture)	$17,883,881	0.2%	Rank history: not on the FY2021 list, #77 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
78	Triple C-The A & E Group LLC Top agencies VA (Department of Veterans Affairs)	$17,556,671	0.2%	Rank history: #86 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
79	Schmidt-Prime Group, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$17,452,912	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #44 in FY2025; up 29 since FY2022.
80	CDM Stanley A Joint Venture Top agencies Army (Department of the Army)	$17,442,045	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	Merrick-Surdex Joint Venture LLP Top agencies DOI (Department of the Interior)	$16,922,802	0.2%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2024 list and #54 in FY2025; up 4 since FY2022.
82	Pond-Baker JV Top agencies Navy (Department of the Navy) Army (Department of the Army)	$16,758,265	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and #42 in FY2025; up 238 since FY2022.
83	Summer Consultants Inc Top agencies Navy (Department of the Navy) GSA (General Services Administration) SSA (Social Security Administration)	$16,666,233	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and #53 in FY2025; new.
84	Wiley Wilson Burns & Mcdonnell Joint Venture Top agencies Navy (Department of the Navy) USUHS (DOD Uniformed Services University of the Health Sciences)	$16,591,013	0.2%	Rank history: #97 in FY2021, not on the FY2022 list, #55 in FY2024 and not on the FY2025 list; up 26 since FY2022.
85	Snow Kreilich Architects Inc. Top agencies GSA (General Services Administration)	$16,332,821	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Ennead Architects LLP Top agencies DOS (Department of State) GSA (General Services Administration)	$16,004,080	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Toland Mizell Molnar LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$15,958,928	0.2%	Rank history: #76 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
88	Mno-Bmadsen Through Seven Generations Architecture & Engineering LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services) Army (Department of the Army)	$15,844,734	0.2%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
89	Colby Co LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$15,676,571	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Cardno Emerging Markets USA Ltd. 2 awardees, including Stantec GS Inc. and Cardno Tec-Leidos, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$15,592,536	0.2%	Rank history: #83 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; down 28 since FY2022.
91	Geosyntec Jacobs A Joint Venture Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$15,561,439	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and #35 in FY2025; new.
92	Design Partners, Incorporated Top agencies Navy (Department of the Navy) Army (Department of the Army)	$15,397,691	0.2%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and #83 in FY2025; up 67 since FY2022.
93	SBD Alliant, LLC Top agencies DHA (Defense Health Agency)	$15,353,099	0.2%	Rank history: #75 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
94	Spur Design LLC Top agencies VA (Department of Veterans Affairs)	$15,351,530	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2024 and #73 in FY2025; new.
95	Woolpert-Rs&H LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,348,179	0.2%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and not on the FY2025 list; new.
96	Zimmer Gunsul Frasca Architects LLP Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$15,168,160	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #47 in FY2025; new.
97	Etrac, A Woolpert Company Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$15,061,752	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 91 since FY2022.
98	Benham - Mead & Hunt Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$14,699,442	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 231 since FY2022.
99	Davis Brody Bond, LLP Top agencies GSA (General Services Administration)	$14,698,167	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Weston & Sampson Inc. Through Weston & Sampson Engineers, Inc. Top agencies Navy (Department of the Navy)	$14,343,027	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

Show 75 more

100 of 2,119 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC C

Code	Net obligations	Largest contractor
C2 Architect-Engineering Services – General	$5,392,567,894	AECOM
C1 Architect-Engineering Services – Construction	$2,911,948,406	B.l. Harbert Holdings, L.L.C.

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 $8.75 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2023 ran Oct 1, 2022 – Sep 30, 2023. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2022. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2022 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC C contractors in FY2023?

1. B.l. Harbert Holdings, L.L.C. ($840M), 2. AECOM ($517M), 3. Jacobs Engineering Group Inc. ($302M), 4. Hdr, Inc. ($233M), 5. Burns & Mcdonnell, Inc. ($170M), 6. Tetra Tech, Inc. ($134M), 7. CCI Utility and Construction Services, LLC ($121M), 8. Parsons Corporation ($110M), 9. Jacobs Government Services Company ($110M), 10. The Compass PTS JV ($88.8M).

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