Top 100 Contractors in PSC C2: Architect-Engineering Services – General, FY2024

Name: Top 100 Contractors in PSC C2: Architect-Engineering Services – General, FY2024
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 27% of FY2024 PSC C2 contract dollars

Contract obligations: $5,930,152,595 Net of deobligations, by contracts coded PSC C2 or a code under it
Contractors: 1,677 Parent companies with an obligation
Largest contractor: AECOM Technical Services, Inc. $356 million, 5.8% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	AECOM Technical Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAID (US Agency for International Development)	$356,280,005	5.8%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
2	General Atomics Aeronautical Systems, Inc. Top agencies Army (Department of the Army)	$274,832,924	4.5%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
3	Jacobs Government Services Company 24 awardees, including Jacobs / B&V, A Joint Venture (Federal Services), Jacobs Engineering Group Inc. and Jacobs BV A Joint Venture Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$208,169,090	3.4%	Rank history: #16 in FY2021, #12 in FY2022, #6 in FY2023 and #2 in FY2025; up 3 since FY2023.
4	Hdr, Inc. 35 awardees, including HDR Environmental, Operations and Construction, Inc., HDR Engineering, Inc of the Carolinas and HDR Engineering, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$154,780,896	2.5%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2025; down 1 since FY2023.
5	Ch2M Hill, Inc. Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency) NASA (National Aeronautics and Space Administration)	$139,867,224	2.3%	Rank history: #31 in FY2021, not on the FY2022–FY2023 lists and #9 in FY2025; returned.
6	Triumph Construction Corp Top agencies Army (Department of the Army)	$132,681,088	2.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
7	Tetra Tech, Inc. 26 awardees, including Tetra TECH / Mason & Hanger Joint Venture and Tetra Tech-Black & Veatch JV Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$107,443,824	1.7%	Rank history: #4 in FY2021, #5 in FY2022, #5 in FY2023 and #7 in FY2025; down 2 since FY2023.
8	Burns & Mcdonnell Engineering Company, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$100,745,211	1.6%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
9	AECOM 29 awardees, including AECOM Services, Inc., AECOM International Inc. and Aecom-Baker Navfac Atlantic A-E Design JV Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$85,277,589	1.4%	Rank history: #3 in FY2021, #2 in FY2022, #1 in FY2023 and #11 in FY2025; down 8 since FY2023.
10	BL Harbert International LLC Top agencies DOJ (Department of Justice) DOS (Department of State)	$81,338,122	1.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
11	WSM Pacific Siop, A Joint Venture Top agencies Navy (Department of the Navy)	$78,535,057	1.3%	Rank history: not on the FY2021 list, #18 in FY2022, #13 in FY2023 and #8 in FY2025; up 2 since FY2023.
12	WSP USA Solutions Inc. Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$77,972,954	1.3%	Rank history: #76 in FY2021, #26 in FY2022, #36 in FY2023 and not on the FY2025 list; up 24 since FY2023.
13	Michael Baker International, Inc. 7 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$73,405,690	1.2%	Rank history: #18 in FY2021, #30 in FY2022, #21 in FY2023 and #25 in FY2025; up 8 since FY2023.
14	Resolution Consultants - An Aecom-Ensafe Joint Venture Top agencies Navy (Department of the Navy)	$64,237,578	1.0%	Rank history: not on the FY2021 list, #73 in FY2022, #12 in FY2023 and #13 in FY2025; down 2 since FY2023.
15	Black & Veatch Special Projects Corp. 2 awardees, including Black & Veatch - GEI JV Top agencies Army (Department of the Army) USAF (Department of the Air Force) USAID (US Agency for International Development)	$57,896,053	0.9%	Rank history: #14 in FY2021, #68 in FY2022, #16 in FY2023 and #14 in FY2025; up 1 since FY2023.
16	Burns & Mcdonnell, Inc. 3 awardees, including Burns & Mcdonnell Engineering Company, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOS (Department of State)	$53,439,645	0.9%	Rank history: #5 in FY2021, #6 in FY2022, #4 in FY2023 and not on the FY2025 list; down 12 since FY2023.
17	Moffatt & Nichol - Burns & Mcdonnell Hawaii Top agencies Navy (Department of the Navy)	$52,712,670	0.9%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and not on the FY2025 list; up 52 since FY2023.
18	Advancing Resilience In Communities Top agencies DHS (Department of Homeland Security)	$52,520,350	0.9%	Rank history: #70 in FY2021, #9 in FY2022, #8 in FY2023 and #53 in FY2025; down 10 since FY2023.
19	Leidos Holdings, Inc. 7 awardees, including Stantec GS - WSP JV, Leidos, Inc. and Cardno Tec-Leidos, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$52,154,139	0.8%	Rank history: #22 in FY2021, #31 in FY2022, #19 in FY2023 and #22 in FY2025; unchanged since FY2023.
20	Starr II, A Joint Venture Top agencies DHS (Department of Homeland Security)	$50,325,307	0.8%	Rank history: #8 in FY2021, #17 in FY2022, #14 in FY2023 and #41 in FY2025; down 6 since FY2023.
21	Peraton Inc. Top agencies NASA (National Aeronautics and Space Administration)	$50,307,169	0.8%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
22	Stantec Inc. 15 awardees, including Stantec Consulting Services Inc. and Stantec-Fni JV Top agencies Navy (Department of the Navy) DOI (Department of the Interior) Army (Department of the Army)	$48,427,079	0.8%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023 and #12 in FY2025; down 13 since FY2023.
23	Dewberry Engineers Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) Commerce (Department of Commerce)	$47,195,786	0.8%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
24	NV5 Geospatial, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$46,902,534	0.8%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
25	The Compass PTS JV Top agencies DHS (Department of Homeland Security)	$44,969,719	0.7%	Rank history: #6 in FY2021, #19 in FY2022, #7 in FY2023 and #42 in FY2025; down 18 since FY2023.
26	Woolpert, Inc. 4 awardees Top agencies DOI (Department of the Interior) Army (Department of the Army) USAF (Department of the Air Force)	$40,761,618	0.7%	Rank history: #20 in FY2021, #15 in FY2022, #32 in FY2023 and #17 in FY2025; up 6 since FY2023.
27	Ch2M Hill Clark Nexsen Energy Partners JV Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$38,499,494	0.6%	Rank history: #73 in FY2021, #71 in FY2022, #52 in FY2023 and #56 in FY2025; up 25 since FY2023.
28	Desbuild Incorporated Top agencies DOS (Department of State)	$36,201,420	0.6%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and #61 in FY2025; up 3 since FY2023.
29	Tecnica Y Proyectos SA Through Tecnica Y Proyectos Typsa for Engineering Services Top agencies Army (Department of the Army)	$36,138,422	0.6%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and not on the FY2025 list; up 5 since FY2023.
30	Ghd-Cowi Joint Venture Top agencies Navy (Department of the Navy)	$35,237,999	0.6%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #35 in FY2025; down 4 since FY2023.
31	Rogers Lovelock & Fritz Inc. 3 awardees, including RLF & CN JV Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$34,984,362	0.6%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; up 72 since FY2023.
32	Golder Europe Service Centre SRL 10 awardees, including WSP USA Inc., WSP USA Solutions Inc. and Louis Berger Kyowa JV Top agencies Navy (Department of the Navy) Army (Department of the Army) EPA (Environmental Protection Agency)	$33,677,753	0.5%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and #21 in FY2025; up 25 since FY2023.
33	Pond-Baker JV Top agencies Navy (Department of the Navy) Army (Department of the Army)	$32,075,825	0.5%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and #70 in FY2025; up 29 since FY2023.
34	Benham-Stanley, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$31,917,848	0.5%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; up 154 since FY2023.
35	AECOM International Inc. Top agencies Army (Department of the Army)	$31,805,769	0.5%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
36	Trevet-Noreas JV LLC Top agencies Navy (Department of the Navy)	$27,966,171	0.5%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
37	MPR Associates Inc. 2 awardees Top agencies Army (Department of the Army)	$26,211,462	0.4%	Rank history: #39 in FY2021, #55 in FY2022, #41 in FY2023 and not on the FY2025 list; up 4 since FY2023.
38	MBF Architects, P.a. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$22,826,730	0.4%	Rank history: not on the FY2021 list, #62 in FY2022, #51 in FY2023 and #71 in FY2025; up 13 since FY2023.
39	EXP U.S. Services Inc. 3 awardees, including EXP Federal Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) GSA (General Services Administration)	$22,677,997	0.4%	Rank history: #74 in FY2021, #78 in FY2022, not on the FY2023 list and #18 in FY2025; up 146 since FY2023.
40	Focus Revision Partners LLC Top agencies DHS (Department of Homeland Security)	$22,455,722	0.4%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
41	Ea-Baker JV Top agencies DLA (Defense Logistics Agency)	$22,307,097	0.4%	Rank history: #27 in FY2021, #34 in FY2022, #29 in FY2023 and not on the FY2025 list; down 12 since FY2023.
42	Schmidt-Prime Group, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$21,895,473	0.4%	Rank history: #75 in FY2021, #82 in FY2022, #72 in FY2023 and #46 in FY2025; up 30 since FY2023.
43	Jacobs Engineering Group Inc. 15 awardees, including Ch2M Hill, Inc. and Jacobs Government Services Co Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) USAF (Department of the Air Force)	$20,684,991	0.3%	Rank history: #7 in FY2021, #4 in FY2022, #2 in FY2023 and not on the FY2025 list; down 41 since FY2023.
44	Design Partners, Incorporated Top agencies Navy (Department of the Navy) Army (Department of the Army)	$20,203,000	0.3%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and #67 in FY2025; up 49 since FY2023.
45	Pond & Company Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$19,813,813	0.3%	Rank history: #94 in FY2021, #92 in FY2022, not on the FY2023 list and not on the FY2025 list; up 57 since FY2023.
46	Framaco International Inc. Top agencies DOS (Department of State)	$19,544,375	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
47	Geosyntec Jacobs A Joint Venture Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$19,029,537	0.3%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #28 in FY2025; up 12 since FY2023.
48	Utility Works A Joint Venture Top agencies Navy (Department of the Navy)	$18,988,230	0.3%	Rank history: #77 in FY2021, #20 in FY2022, #84 in FY2023 and #52 in FY2025; up 36 since FY2023.
49	Parsons Corporation 4 awardees, including Parsons Government Services Inc. and Parsons-Versar Joint Venture Top agencies USAF (Department of the Air Force) Army (Department of the Army) Commerce (Department of Commerce)	$18,833,265	0.3%	Rank history: #25 in FY2021, #29 in FY2022, #55 in FY2023 and #20 in FY2025; up 6 since FY2023.
50	Power Engineers Inc. Top agencies Navy (Department of the Navy)	$18,700,228	0.3%	Rank history: not on the FY2021 list, #95 in FY2022, #37 in FY2023 and #76 in FY2025; down 13 since FY2023.
51	Wiley Wilson Burns & Mcdonnell Joint Venture Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$18,017,498	0.3%	Rank history: #93 in FY2021, #99 in FY2022, #82 in FY2023 and not on the FY2025 list; up 31 since FY2023.
52	Weston & Sampson Engineers, Inc. Top agencies Navy (Department of the Navy)	$18,006,154	0.3%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2025; new.
53	Stantec Consulting Services Inc. 5 awardees, including Fsb-Stantec JV Top agencies Army (Department of the Army) DOI (Department of the Interior) Navy (Department of the Navy)	$17,784,501	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
54	The Urban Collaborative, Llc: Master Planning, Urban Design, and Architecture Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$17,652,656	0.3%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2025; up 117 since FY2023.
55	Fugro USA Land, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) Commerce (Department of Commerce)	$16,638,822	0.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
56	Colby Co LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$16,543,683	0.3%	Rank history: not on the FY2021 list, #84 in FY2022, not on the FY2023 list and #51 in FY2025; returned.
57	The Johnson-Mcadams Firm, P.a. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOI (Department of the Interior)	$16,104,734	0.3%	Rank history: #60 in FY2021, not on the FY2022 list, #81 in FY2023 and not on the FY2025 list; up 24 since FY2023.
58	Barge Emersion Joint Venture Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,502,274	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 152 since FY2023.
59	Camp Dresser & Mckee Inc. 5 awardees, including CDM International Inc., CDM Federal Programs Corporation and CDM Smith Inc. Top agencies USAID (US Agency for International Development) EPA (Environmental Protection Agency) Army (Department of the Army)	$14,951,838	0.2%	Rank history: #11 in FY2021, #16 in FY2022, #30 in FY2023 and not on the FY2025 list; down 29 since FY2023.
60	Mcmillen, Inc. Top agencies Army (Department of the Army)	$14,930,355	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
61	HDR Architecture, Inc. Top agencies WHS (DOD Washington Headquarters Service) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$14,890,630	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
62	Summer Consultants Inc Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) Army (Department of the Army)	$14,739,660	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; up 86 since FY2023.
63	Hellmuth, Obata & Kassabaum, P.C. Top agencies HHS (Department of Health and Human Services)	$14,571,858	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	K2 Construction Consultants, Inc. Top agencies DHS (Department of Homeland Security)	$14,059,352	0.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; up 164 since FY2023.
65	Mantech SRS Technologies, Inc. Top agencies Navy (Department of the Navy)	$13,982,924	0.2%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; new.
66	Baker-Aecom Environmental Compliance JV Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$13,851,375	0.2%	Rank history: not on the FY2021 list, #74 in FY2022, #44 in FY2023 and #47 in FY2025; down 22 since FY2023.
67	Jacobs / B&M A Joint Venture Top agencies Navy (Department of the Navy)	$13,717,489	0.2%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and #26 in FY2025; down 18 since FY2023.
68	KAL Architects, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHA (Defense Health Agency)	$13,415,275	0.2%	Rank history: #52 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 235 since FY2023.
69	Dj&A, P.C. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) DOT (Department of Transportation)	$13,395,237	0.2%	Rank history: #56 in FY2021, #51 in FY2022, #65 in FY2023 and not on the FY2025 list; down 4 since FY2023.
70	Acuity - Pt&C, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$13,362,120	0.2%	Rank history: #58 in FY2021, #54 in FY2022, #73 in FY2023 and #58 in FY2025; up 3 since FY2023.
71	W.f. Baird & Associates Ltd. Top agencies Army (Department of the Army)	$13,259,317	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Ah / BC Navy JV, LLC Top agencies Navy (Department of the Navy)	$13,006,169	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 87 since FY2023.
73	Arcadis U.s., Inc. Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$12,890,331	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Woolpert-Rs&H LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DODEA (Department of Defense Education Activity)	$12,721,801	0.2%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2023 and not on the FY2025 list; down 11 since FY2023.
75	Futron, Inc. Top agencies DOS (Department of State)	$12,680,404	0.2%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and not on the FY2025 list; up 13 since FY2023.
76	Gf-D Design Partners JV Top agencies Army (Department of the Army)	$12,576,793	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 181 since FY2023.
77	Weston-Ea JV Top agencies Army (Department of the Army)	$12,345,613	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Thompson Engineering, Inc. Top agencies Army (Department of the Army)	$12,243,639	0.2%	Rank history: not on the FY2021 list, #91 in FY2022, not on the FY2023 list and not on the FY2025 list; up 95 since FY2023.
79	WSP USA Environment & Infrastructure Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$12,113,454	0.2%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; new.
80	Paragon-Jacobs Joint Venture, LLC Top agencies Army (Department of the Army)	$11,950,488	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; up 95 since FY2023.
81	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$11,833,461	0.2%	Rank history: #67 in FY2021, not on the FY2022–FY2023 lists and #68 in FY2025; up 113 since FY2023.
82	Hntb Corporation Top agencies Army (Department of the Army)	$11,799,075	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
83	Smithgroup Companies, Inc. Through Smithgroup, Inc. Top agencies GSA (General Services Administration) SSA (Social Security Administration) DHS (Department of Homeland Security)	$11,783,328	0.2%	Rank history: #43 in FY2021, #63 in FY2022, #53 in FY2023 and not on the FY2025 list; down 30 since FY2023.
84	Merrick-Surdex Joint Venture LLP Top agencies DOI (Department of the Interior)	$11,778,654	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #54 in FY2023 and #40 in FY2025; down 30 since FY2023.
85	RMF Engineering, Inc., P.C. Top agencies HHS (Department of Health and Human Services) DOS (Department of State) Army (Department of the Army)	$11,757,595	0.2%	Rank history: #53 in FY2021, not on the FY2022–FY2023 lists and #87 in FY2025; up 53 since FY2023.
86	Collins Engineers, Incorporated Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$11,457,766	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Southeast Geospatial, JV LLC Top agencies Navy (Department of the Navy)	$11,164,193	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 111 since FY2023.
88	Merrick-Rs & H Joint Venture LLP Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$11,124,806	0.2%	Rank history: #55 in FY2021, not on the FY2022 list, #23 in FY2023 and not on the FY2025 list; down 65 since FY2023.
89	Alliance WSP JV, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$11,072,069	0.2%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; up 176 since FY2023.
90	Oak Point Associates Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$10,825,614	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 21 since FY2023.
91	Burns & Mcdonnell + Group 70 Ho'ohui'ia Joint Venture Top agencies Army (Department of the Army)	$10,808,998	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
92	Cems-Rs&H JV Top agencies Army (Department of the Army)	$10,783,067	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and not on the FY2025 list; down 21 since FY2023.
93	HP Enterprise Services LLC Through Peraton Inc. Top agencies NASA (National Aeronautics and Space Administration)	$10,764,336	0.2%	Rank history: not on the FY2021 list, #28 in FY2022, #10 in FY2023 and not on the FY2025 list; down 83 since FY2023.
94	Otak, Inc. Top agencies DOI (Department of the Interior)	$10,652,933	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 33 since FY2023.
95	Oei-Aecom Joint Venture Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$10,615,985	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Moffatt & Nichol - AECOM JV Top agencies Army (Department of the Army)	$10,612,606	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Fourfront Design Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$10,527,040	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 275 since FY2023.
98	Multi-Mac Joint Venture Top agencies Navy (Department of the Navy)	$10,515,486	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2025; new.
99	Transystems Corporation Top agencies DHS (Department of Homeland Security)	$10,505,289	0.2%	Rank history: #88 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 22 since FY2023.
100	Mcdonough Bolyard Peck, Inc. 2 awardees Top agencies DOS (Department of State) Smithsonian (Smithsonian Institution)	$10,477,954	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; up 237 since FY2023.

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100 of 1,677 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC C2

Code	Net obligations	Largest contractor
C219 Other Architect and Engineering Services	$3,465,414,829	AECOM Technical Services, Inc.
C211 Architect – Engineer Services (including landscaping, interior layout, and designing)	$1,449,073,269	AECOM Technical Services, Inc.
C215 A&E Production Engineering Services (including Design and Control, and Building Programming)	$364,381,731	General Atomics Aeronautical Systems, Inc.
C212 Engineering Drafting Services	$244,189,996	Jacobs Government Services Company
C223 Architect and Engineering – General: Mechanical Systems	$112,016,626	Peraton Inc.
C213 A&E Inspection Services (non-construction)	$81,551,150	Futron, Inc.
C214 A&E Management Engineering Services	$71,905,296	Alliance One Group LLC
C220 Architect and Engineering – General: Structural Engineering	$63,651,676	Golder Europe Service Centre SRL
C216 Marine Architect and Engineering Services	$41,068,711	Mdpac JV
C222 Architect and Engineering – General: Electrical Systems	$30,246,941	Jacobs Government Services 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 $6.15 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 C2 contractors in FY2024?

1. AECOM Technical Services, Inc. ($356M), 2. General Atomics Aeronautical Systems, Inc. ($275M), 3. Jacobs Government Services Company ($208M), 4. Hdr, Inc. ($155M), 5. Ch2M Hill, Inc. ($140M), 6. Triumph Construction Corp ($133M), 7. Tetra Tech, Inc. ($107M), 8. Burns & Mcdonnell Engineering Company, Inc. ($101M), 9. AECOM ($85.3M), 10. BL Harbert International LLC ($81.3M).

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