Top 100 Contractors in PSC C219: Other Architect and Engineering Services, FY2025

Name: Top 100 Contractors in PSC C219: Other Architect and Engineering Services, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 28% of FY2025 PSC C219 contract dollars

Contract obligations: $2,630,935,463 Net of deobligations, by contracts coded PSC C219
Contractors: 948 Parent companies with an obligation
Largest contractor: AECOM Technical Services, Inc. $160 million, 5.7% 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	AECOM Technical Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAID (US Agency for International Development)	$159,508,927	5.7%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023 list and #1 in FY2024; unchanged since FY2024.
2	Burns & Mcdonnell Engineering Company, Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHA (Defense Health Agency)	$106,904,191	3.9%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; up 5 since FY2024.
3	Jacobs Government Services Company 14 awardees, including Jacobs Engineering Group Inc., Jacobs BV A Joint Venture and Jacobs / Huitt-Zollars, A Joint Venture Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) NASA (National Aeronautics and Space Administration)	$103,388,900	3.7%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and #6 in FY2024; up 3 since FY2024.
4	Ch2M Hill, Inc. Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency) Army (Department of the Army)	$83,508,613	3.0%	Rank history: #18 in FY2021, not on the FY2022–FY2023 lists and #3 in FY2024; down 1 since FY2024.
5	Tetra Tech, Inc. 21 awardees, including Tetra TECH / Mason & Hanger Joint Venture and Tetra Tech-Black & Veatch JV Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) USAID (US Agency for International Development)	$70,489,474	2.5%	Rank history: #4 in FY2021, #4 in FY2022, #5 in FY2023 and #4 in FY2024; down 1 since FY2024.
6	Resolution Consultants - An Aecom-Ensafe Joint Venture Top agencies Navy (Department of the Navy)	$61,307,401	2.2%	Rank history: not on the FY2021 list, #42 in FY2022, #7 in FY2023 and #9 in FY2024; up 3 since FY2024.
7	Hdr, Inc. 27 awardees, including HDR Environmental, Operations and Construction, Inc., Hdr-Obg A Joint Venture and HDR GEI Joint Venture Top agencies Army (Department of the Army) Navy (Department of the Navy) EPA (Environmental Protection Agency)	$56,949,313	2.1%	Rank history: #1 in FY2021, #3 in FY2022, #3 in FY2023 and #8 in FY2024; up 1 since FY2024.
8	Black & Veatch Special Projects Corp. 2 awardees, including Black & Veatch - GEI JV Top agencies Army (Department of the Army)	$54,002,741	1.9%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and #16 in FY2024; up 8 since FY2024.
9	EXP U.S. Services Inc. Through EXP Federal Inc. Top agencies Army (Department of the Army)	$43,897,908	1.6%	Rank history: #47 in FY2021, #63 in FY2022, not on the FY2023 list and #27 in FY2024; up 18 since FY2024.
10	AECOM 17 awardees, including AECOM Services, LLC, Urs-Smithgroup Joint Venture and AECOM - Garver Kansas City Design Services JV Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$40,722,109	1.5%	Rank history: #6 in FY2021, #1 in FY2022, #1 in FY2023 and #18 in FY2024; up 8 since FY2024.
11	NV5 Geospatial, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$40,491,325	1.5%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 3 since FY2024.
12	Golder Europe Service Centre SRL 5 awardees, including WSP USA Solutions Inc., WSP USA Buildings Inc. and Golder Associates Inc. Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$32,775,881	1.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 31 since FY2024.
13	Ea-Baker Partners JV Top agencies DLA (Defense Logistics Agency)	$30,183,460	1.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 86 since FY2024.
14	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc., Stantec GS - WSP JV and Cardno Tec-Leidos, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$29,976,177	1.1%	Rank history: #13 in FY2021, #23 in FY2022, #13 in FY2023 and #12 in FY2024; down 2 since FY2024.
15	Woolpert, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) Commerce (Department of Commerce)	$29,099,435	1.0%	Rank history: #15 in FY2021, #13 in FY2022, #29 in FY2023 and #22 in FY2024; up 7 since FY2024.
16	Huitt-Zollars Mason & Hanger Joint Venture Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$25,870,686	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
17	Geosyntec Jacobs A Joint Venture Top agencies Navy (Department of the Navy)	$23,764,529	0.9%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and #32 in FY2024; up 15 since FY2024.
18	Nve, Inc. Top agencies DOS (Department of State)	$23,659,110	0.9%	Rank history: not on the FY2021–FY2024 lists; up 274 since FY2024.
19	Focus Revision Partners LLC Top agencies DHS (Department of Homeland Security)	$23,336,320	0.8%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 10 since FY2024.
20	Stantec Inc. 12 awardees, including Stantec GS Inc., Stantec Consulting Services Inc. and Stantec-Volkert-Jmt A JV Top agencies Army (Department of the Army) Navy (Department of the Navy) DOT (Department of Transportation)	$23,183,230	0.8%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #25 in FY2024; up 5 since FY2024.
21	Rogers Lovelock & Fritz Inc. 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army)	$22,542,237	0.8%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; up 13 since FY2024.
22	Trevet-Noreas JV LLC Top agencies Navy (Department of the Navy)	$19,951,651	0.7%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 2 since FY2024.
23	Merrick-Surdex Joint Venture LLP Top agencies DOI (Department of the Interior)	$17,191,063	0.6%	Rank history: #90 in FY2021, #37 in FY2022, #34 in FY2023 and #56 in FY2024; up 33 since FY2024.
24	Starr II, A Joint Venture Top agencies DHS (Department of Homeland Security)	$17,149,800	0.6%	Rank history: #3 in FY2021, #10 in FY2022, #9 in FY2023 and #11 in FY2024; down 13 since FY2024.
25	The Compass PTS JV Top agencies DHS (Department of Homeland Security)	$17,112,115	0.6%	Rank history: #2 in FY2021, #11 in FY2022, #4 in FY2023 and #13 in FY2024; down 12 since FY2024.
26	K2 Construction Consultants, Inc. Top agencies DHS (Department of Homeland Security)	$16,955,160	0.6%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; up 19 since FY2024.
27	Mantech SRS Technologies, Inc. Top agencies Navy (Department of the Navy)	$16,740,399	0.6%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 19 since FY2024.
28	Ghd-Cowi Joint Venture Top agencies Navy (Department of the Navy)	$16,525,645	0.6%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #21 in FY2024; down 7 since FY2024.
29	D+S International LLC Top agencies DOS (Department of State)	$16,378,010	0.6%	Rank history: not on the FY2021–FY2024 lists; up 308 since FY2024.
30	AECOM International Inc. Top agencies Army (Department of the Army)	$16,041,251	0.6%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 7 since FY2024.
31	Benham-Stanley, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,834,233	0.6%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list and #57 in FY2024; up 26 since FY2024.
32	Dewberry Engineers Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) DOJ (Department of Justice)	$15,649,625	0.6%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; down 17 since FY2024.
33	Baker-Aecom Environmental Compliance JV Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$15,557,653	0.6%	Rank history: not on the FY2021 list, #44 in FY2022, #28 in FY2023 and #48 in FY2024; up 15 since FY2024.
34	CDM International Inc. Top agencies USAID (US Agency for International Development)	$15,388,814	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
35	Coover Clark and Associates Inc. Top agencies Army (Department of the Army)	$15,046,411	0.5%	Rank history: not on the FY2021–FY2024 lists; up 369 since FY2024.
36	Advancing Resilience In Communities Top agencies DHS (Department of Homeland Security)	$14,969,965	0.5%	Rank history: #35 in FY2021, #6 in FY2022, #6 in FY2023 and #10 in FY2024; down 26 since FY2024.
37	Fugro USA Land, Inc. Top agencies DOI (Department of the Interior)	$14,582,208	0.5%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 18 since FY2024.
38	Utility Works A Joint Venture Top agencies Navy (Department of the Navy)	$14,530,752	0.5%	Rank history: not on the FY2021 list, #12 in FY2022, #51 in FY2023 and #33 in FY2024; down 5 since FY2024.
39	Mark Cavagnero Associates Top agencies DOS (Department of State)	$13,474,270	0.5%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2023–FY2024 lists; returned.
40	Jacobs Geosyntec A Joint Venture Top agencies NASA (National Aeronautics and Space Administration)	$13,458,085	0.5%	Rank history: not on the FY2021–FY2024 lists; up 235 since FY2024.
41	Acuity - Pt&C, LLC Top agencies Army (Department of the Army)	$13,206,491	0.5%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #49 in FY2024; up 8 since FY2024.
42	Helber Hastert & Fee Planners Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$13,050,401	0.5%	Rank history: #68 in FY2021, #55 in FY2022, #78 in FY2023 and not on the FY2024 list; up 94 since FY2024.
43	Colby Co LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$12,784,948	0.5%	Rank history: not on the FY2021 list, #58 in FY2022, not on the FY2023 list and #39 in FY2024; down 4 since FY2024.
44	Clark Nexsen/ Michael Baker JV Top agencies Navy (Department of the Navy)	$12,781,439	0.5%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 41 since FY2024.
45	Ch2M Hill Clark Nexsen Energy Partners JV Top agencies Navy (Department of the Navy)	$12,738,930	0.5%	Rank history: not on the FY2021 list, #45 in FY2022, #35 in FY2023 and #17 in FY2024; down 28 since FY2024.
46	Paragon-Jacobs Joint Venture, LLC Top agencies Army (Department of the Army)	$12,620,817	0.5%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 8 since FY2024.
47	Michael Baker International, Inc. Top agencies Army (Department of the Army)	$12,555,518	0.5%	Rank history: not on the FY2021–FY2024 lists; up 58 since FY2024.
48	Element Environmental, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$12,307,623	0.4%	Rank history: #30 in FY2021, #47 in FY2022, #58 in FY2023 and #81 in FY2024; up 33 since FY2024.
49	Mn-Bmcd ML Joint Venture Top agencies Navy (Department of the Navy)	$12,003,983	0.4%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and #79 in FY2024; up 30 since FY2024.
50	Affiliated Engineers Metro DC, Inc. Top agencies HHS (Department of Health and Human Services)	$11,645,322	0.4%	Rank history: not on the FY2021–FY2024 lists; up 58 since FY2024.
51	MBF Architects, P.a. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$11,497,997	0.4%	Rank history: not on the FY2021 list, #41 in FY2022, #37 in FY2023 and #28 in FY2024; down 23 since FY2024.
52	Etrac, A Woolpert Company Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$11,334,582	0.4%	Rank history: #73 in FY2021, #72 in FY2022, #39 in FY2023 and #97 in FY2024; up 45 since FY2024.
53	Martinez-Drmp JV, LLC Top agencies USAF (Department of the Air Force)	$11,301,524	0.4%	Rank history: not on the FY2021–FY2024 lists; up 86 since FY2024.
54	Miller-Remick, LLC Top agencies Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$11,050,532	0.4%	Rank history: not on the FY2021–FY2024 lists; up 294 since FY2024.
55	CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency) Army (Department of the Army) VA (Department of Veterans Affairs)	$10,899,457	0.4%	Rank history: not on the FY2021–FY2024 lists; up 106 since FY2024.
56	RMA Architects Inc. Top agencies Navy (Department of the Navy)	$10,682,545	0.4%	Rank history: not on the FY2021 list, #85 in FY2022, #65 in FY2023 and not on the FY2024 list; up 56 since FY2024.
57	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs)	$10,677,769	0.4%	Rank history: #91 in FY2021, not on the FY2022–FY2023 lists and #71 in FY2024; up 14 since FY2024.
58	Weston & Sampson Engineers, Inc. Top agencies Navy (Department of the Navy)	$10,568,358	0.4%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; down 22 since FY2024.
59	Whitman Requardt & Associates LLP Top agencies Navy (Department of the Navy) Army (Department of the Army)	$10,286,070	0.4%	Rank history: #22 in FY2021, #27 in FY2022, #61 in FY2023 and #96 in FY2024; up 37 since FY2024.
60	Pond-Tetra TECH JV LP Top agencies Army (Department of the Army)	$10,041,415	0.4%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 20 since FY2024.
61	Power Engineers Inc. Top agencies Navy (Department of the Navy)	$9,962,382	0.4%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #35 in FY2024; down 26 since FY2024.
62	Towill, Inc. Top agencies Army (Department of the Army)	$9,659,395	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
63	GEO Consultants Corporation Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$9,455,118	0.3%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and not on the FY2024 list; up 306 since FY2024.
64	Blair Remy Merrick MP Joint Venture, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$9,318,144	0.3%	Rank history: not on the FY2021–FY2024 lists; up 257 since FY2024.
65	Aecom-B&V Lakes and Rivers JV Top agencies Army (Department of the Army)	$9,307,120	0.3%	Rank history: not on the FY2021–FY2024 lists; up 39 since FY2024.
66	Multi-Mac Joint Venture Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$9,284,029	0.3%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; unchanged since FY2024.
67	RMF Engineering, Inc., P.C. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$9,028,911	0.3%	Rank history: #42 in FY2021, not on the FY2022 list, #80 in FY2023 and #75 in FY2024; up 8 since FY2024.
68	Merrick & Company 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) USDA (Department of Agriculture)	$8,988,768	0.3%	Rank history: not on the FY2021–FY2024 lists; up 98 since FY2024.
69	Crawford Consulting Services Inc. Top agencies Army (Department of the Army)	$8,917,089	0.3%	Rank history: not on the FY2021–FY2024 lists; up 355 since FY2024.
70	Quinn Evans Architects Inc. Top agencies DOI (Department of the Interior) National Gallery of Art	$8,766,735	0.3%	Rank history: not on the FY2021–FY2024 lists; up 92 since FY2024.
71	Gf-D Design Partners JV Top agencies Army (Department of the Army)	$8,128,482	0.3%	Rank history: not on the FY2021 list, #88 in FY2022, not on the FY2023 list and #52 in FY2024; down 19 since FY2024.
72	Studio MA, Inc. Top agencies DOS (Department of State)	$8,124,172	0.3%	Rank history: not on the FY2021 list, #29 in FY2022 and not on the FY2023–FY2024 lists; up 158 since FY2024.
73	The Parsons Corporation 2 awardees, including Michael Baker International, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$7,998,325	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
74	LEO A Daly - Perkins and Will A Joint Venture Top agencies Army (Department of the Army)	$7,970,917	0.3%	Rank history: not on the FY2021 list, #69 in FY2022, #92 in FY2023 and not on the FY2024 list; returned.
75	The Boeing Company Top agencies USAF (Department of the Air Force)	$7,901,553	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
76	Nicklaus Amec JV Top agencies Navy (Department of the Navy)	$7,827,166	0.3%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 12 since FY2024.
77	Appledore Marine - Ch2M JV Top agencies Navy (Department of the Navy)	$7,765,553	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
78	Summer Consultants Inc Top agencies Navy (Department of the Navy) Army (Department of the Army) HHS (Department of Health and Human Services)	$7,700,987	0.3%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; down 28 since FY2024.
79	Anderson Hallas Architects, PC Top agencies DOI (Department of the Interior)	$7,634,346	0.3%	Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
80	David Evans and Associates, Inc. Top agencies Commerce (Department of Commerce)	$7,497,973	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
81	Moca Systems, Inc. Top agencies Army (Department of the Army)	$7,372,094	0.3%	Rank history: #82 in FY2021, not on the FY2022 list, #99 in FY2023 and not on the FY2024 list; up 25 since FY2024.
82	Jacobs / B&M A Joint Venture Top agencies Navy (Department of the Navy)	$7,256,063	0.3%	Rank history: not on the FY2021–FY2024 lists; up 176 since FY2024.
83	W.f. Baird & Associates Ltd. Top agencies Army (Department of the Army)	$7,153,647	0.3%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; down 32 since FY2024.
84	Seres-Arcadis SB JV2 LLC Top agencies Army (Department of the Army)	$6,944,258	0.3%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 3 since FY2024.
85	KPB Architects Coffman Engineers JV Top agencies Army (Department of the Army)	$6,794,674	0.2%	Rank history: not on the FY2021 list, #79 in FY2022 and not on the FY2023–FY2024 lists; up 335 since FY2024.
86	Blue Arrow Architecture LLC Top agencies DOI (Department of the Interior)	$6,766,512	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
87	Yaeger Architecture Inc. Top agencies Army (Department of the Army)	$6,690,997	0.2%	Rank history: not on the FY2021–FY2024 lists; up 72 since FY2024.
88	Schmidt-Prime Group, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$6,639,592	0.2%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 15 since FY2024.
89	Vali Cooper International LLC Top agencies DOE (Department of Energy) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$6,474,785	0.2%	Rank history: #64 in FY2021, #74 in FY2022 and not on the FY2023–FY2024 lists; up 119 since FY2024.
90	Stantec GS - AECOM Atlantic Joint Venture Top agencies Navy (Department of the Navy)	$6,275,931	0.2%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 10 since FY2024.
91	Fugro USA Marine, Inc. Top agencies Commerce (Department of Commerce)	$6,256,912	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
92	AH Environmental Consultants Inc. Top agencies Navy (Department of the Navy) DHA (Defense Health Agency)	$6,106,655	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
93	Hgl-Aptim Technologies JV LLC Top agencies Navy (Department of the Navy)	$5,973,841	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
94	Koman Government Solutions LLC Top agencies Navy (Department of the Navy)	$5,894,728	0.2%	Rank history: not on the FY2021–FY2024 lists; up 131 since FY2024.
95	Rocksol Consulting Group, Inc. Top agencies DOT (Department of Transportation)	$5,887,805	0.2%	Rank history: not on the FY2021–FY2024 lists; up 77 since FY2024.
96	Hntb Corporation Top agencies Army (Department of the Army)	$5,829,492	0.2%	Rank history: not on the FY2021–FY2024 lists; up 361 since FY2024.
97	Design Alaska, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$5,743,281	0.2%	Rank history: not on the FY2021–FY2024 lists; up 361 since FY2024.
98	Paragon Professional Services LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,542,530	0.2%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
99	Baker-Stanley-Cardno JV Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$5,500,843	0.2%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
100	USA Environmental, Inc. Top agencies Navy (Department of the Navy)	$5,476,243	0.2%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 948 contractors listed here. See the rest on GovTribe.

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 $2.78 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 C219 contractors in FY2025?

1. AECOM Technical Services, Inc. ($160M), 2. Burns & Mcdonnell Engineering Company, Inc. ($107M), 3. Jacobs Government Services Company ($103M), 4. Ch2M Hill, Inc. ($83.5M), 5. Tetra Tech, Inc. ($70.5M), 6. Resolution Consultants - An Aecom-Ensafe Joint Venture ($61.3M), 7. Hdr, Inc. ($56.9M), 8. Black & Veatch Special Projects Corp. ($54M), 9. EXP U.S. Services Inc. ($43.9M), 10. AECOM ($40.7M).

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