Top 100 Contractors in PSC C219: Other Architect and Engineering Services, FY2021

Name: Top 100 Contractors in PSC C219: Other Architect and Engineering Services, FY2021
Creator: GovTribe

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

The top 10 won 28% of FY2021 PSC C219 contract dollars

Contract obligations: $1,715,494,010 Net of deobligations, by contracts coded PSC C219
Contractors: 953 Parent companies with an obligation
Largest contractor: Hdr, Inc. $97.2 million, 4.4% 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	Hdr, Inc. 27 awardees, including HDR Engineering, Inc of the Carolinas, HDR Architecture, Inc. and HDR Environmental, Operations and Construction, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$97,154,613	4.4%	Rank history: #3 in FY2022, #3 in FY2023, #8 in FY2024 and #7 in FY2025; up 5 since FY2020.
2	The Compass PTS JV Top agencies DHS (Department of Homeland Security)	$91,982,343	4.2%	Rank history: #11 in FY2022, #4 in FY2023, #13 in FY2024 and #25 in FY2025; up 2 since FY2020.
3	Starr II, A Joint Venture Top agencies DHS (Department of Homeland Security)	$74,768,966	3.4%	Rank history: #10 in FY2022, #9 in FY2023, #11 in FY2024 and #24 in FY2025; up 2 since FY2020.
4	Tetra Tech, Inc. 18 awardees Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$72,930,838	3.3%	Rank history: #4 in FY2022, #5 in FY2023, #4 in FY2024 and #5 in FY2025; down 1 since FY2020.
5	Burns & Mcdonnell, Inc. 3 awardees, including Burns & Mcdonnell Engineering Company, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$65,331,734	3.0%	Rank history: #8 in FY2022, #11 in FY2023, #20 in FY2024 and not on the FY2025 list; up 2 since FY2020.
6	AECOM 17 awardees, including AECOM Technical Services, Inc., Aecom-Baker-Cardno Navfac Atlantic Planning JV and AECOM Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$54,185,661	2.5%	Rank history: #1 in FY2022, #1 in FY2023, #18 in FY2024 and #10 in FY2025; down 4 since FY2020.
7	Jacobs / Hdr, A Joint Venture (Navfac Atlantic Srm) Top agencies Navy (Department of the Navy)	$46,789,117	2.1%	Rank history: not on the FY2022 list, #20 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
8	Camp Dresser & Mckee Inc. 7 awardees, including CDM International Inc. and CDM Federal Programs Corporation Top agencies USAID (US Agency for International Development) Army (Department of the Army) EPA (Environmental Protection Agency)	$42,559,344	1.9%	Rank history: #15 in FY2022, #19 in FY2023, #38 in FY2024 and not on the FY2025 list; up 1 since FY2020.
9	Jacobs Engineering Group Inc. 22 awardees, including Ch2M Hill, Inc., Jacobs Government Services Company and Amentum Technology, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$31,479,919	1.4%	Rank history: #2 in FY2022, #2 in FY2023, #44 in FY2024 and not on the FY2025 list; down 8 since FY2020.
10	RBA Group the 3 awardees, including NV5 Geospatial, Inc., Geodynamics LLC and Whpacific, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$30,229,189	1.4%	Rank history: #9 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
11	Trevet-Bay West Joint Venture, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$27,131,611	1.2%	Rank history: #25 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
12	Ea-Baker JV Top agencies DLA (Defense Logistics Agency)	$22,794,560	1.0%	Rank history: #24 in FY2022, #18 in FY2023, #30 in FY2024 and not on the FY2025 list; up 1 since FY2020.
13	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$20,276,144	0.9%	Rank history: #23 in FY2022, #13 in FY2023, #12 in FY2024 and #14 in FY2025; up 35 since FY2020.
14	Ahtna Infrastructure & Technologies LLC Top agencies Commerce (Department of Commerce)	$19,064,895	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Woolpert, Inc. 3 awardees, including Geomatics Data Solutions, A Woolpert Company, LLC Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$18,148,266	0.8%	Rank history: #13 in FY2022, #29 in FY2023, #22 in FY2024 and #15 in FY2025; down 7 since FY2020.
16	Jacobs / Ewingcole, A Joint Venture Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$18,117,117	0.8%	Rank history: #20 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
17	Arcadis N.V. 6 awardees, including Arcadis U.s., Inc., Arcadis Germany GMBH and Arcadis-Exp Federal JV Top agencies Army (Department of the Army) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$18,071,520	0.8%	Rank history: #18 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
18	Ch2M Hill, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) EPA (Environmental Protection Agency)	$17,554,613	0.8%	Rank history: not on the FY2022–FY2023 lists, #3 in FY2024 and #4 in FY2025; up 87 since FY2020.
19	Kleinfelder - Stantec Usace A Joint Venture Top agencies Army (Department of the Army)	$17,295,384	0.8%	Rank history: not on the FY2022 list, #62 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
20	Nicklaus Engineering, Inc. 2 awardees, including Multi-Mac JV and Nicklaus Amec JV Top agencies Navy (Department of the Navy)	$16,574,855	0.8%	Rank history: #28 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
21	Clark Nexsen Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USDA (Department of Agriculture)	$16,329,061	0.7%	Rank history: #30 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 77 since FY2020.
22	Whitman Requardt & Associates LLP Top agencies Army (Department of the Army) Navy (Department of the Navy) DOS (Department of State)	$16,269,106	0.7%	Rank history: #27 in FY2022, #61 in FY2023, #96 in FY2024 and #59 in FY2025; up 47 since FY2020.
23	Asmd LLC Top agencies Navy (Department of the Navy)	$14,891,722	0.7%	Rank history: #40 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
24	The Dewberry Companies LC 2 awardees, including Dewberry Engineers Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$13,999,378	0.6%	Rank history: #19 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
25	URS Corporation Through Urs-Smithgroup Joint Venture Top agencies Army (Department of the Army)	$13,583,398	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
26	Fugro Geospatial Inc. 4 awardees, including Fugro USA Land, Inc. and Fugro USA Marine, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$12,261,187	0.6%	Rank history: #32 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
27	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) DOS (Department of State)	$12,027,221	0.5%	Rank history: #34 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2020.
28	Marlon Blackwell Architects, P.a. Top agencies DOS (Department of State)	$11,807,141	0.5%	Rank history: not on the FY2022–FY2025 lists; up 170 since FY2020.
29	Multi-Media Environmental Compliance Group Top agencies Navy (Department of the Navy)	$10,784,264	0.5%	Rank history: not on the FY2022 list, #86 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
30	Element Environmental, LLC Top agencies Navy (Department of the Navy)	$10,469,909	0.5%	Rank history: #47 in FY2022, #58 in FY2023, #81 in FY2024 and #48 in FY2025; up 15 since FY2020.
31	Weston Solutions Holdings, Inc. 3 awardees, including Weston Solutions Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DOT (Department of Transportation)	$10,272,520	0.5%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
32	Black & Veatch Special Projects Corp. Top agencies Army (Department of the Army)	$9,711,022	0.4%	Rank history: not on the FY2022–FY2025 lists; up 74 since FY2020.
33	Cardno GS - AECOM Pacific JV Top agencies Navy (Department of the Navy)	$9,590,499	0.4%	Rank history: #54 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
34	Baker-Tetra TECH JV Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$9,307,849	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Advancing Resilience In Communities Top agencies DHS (Department of Homeland Security)	$8,580,960	0.4%	Rank history: #6 in FY2022, #6 in FY2023, #10 in FY2024 and #36 in FY2025; new, not ranked in FY2020.
36	Stantec Incorporated 8 awardees, including Stantec Consulting Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$8,313,990	0.4%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; down 16 since FY2020.
37	Wood Environment & Infrastructure Solutions Inc. 2 awardees, including WSP USA Environment & Infrastructure Inc. and WSP E&Is GMBH Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$8,164,513	0.4%	Rank history: #56 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
38	Louis Berger U.S. Inc. 6 awardees, including WSP USA Solutions Inc., Ecology and Environment Inc. and WSP USA Buildings Inc. Top agencies EPA (Environmental Protection Agency) Army (Department of the Army) DOT (Department of Transportation)	$7,813,321	0.4%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
39	Aptim Federal Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$7,696,222	0.3%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 76 since FY2020.
40	Leetex Group LLC Top agencies HUD (Department of Housing and Urban Development)	$7,584,777	0.3%	Rank history: not on the FY2022–FY2025 lists; up 39 since FY2020.
41	Mantech-Aecom Joint Venture Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,320,892	0.3%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
42	RMF Engineering, Inc., P.C. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) USDA (Department of Agriculture)	$7,224,495	0.3%	Rank history: not on the FY2022 list, #80 in FY2023, #75 in FY2024 and #67 in FY2025; up 16 since FY2020.
43	Transystems Corporation 2 awardees Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$7,224,330	0.3%	Rank history: not on the FY2022 list, #87 in FY2023, #70 in FY2024 and not on the FY2025 list; up 71 since FY2020.
44	The Day & Zimmermann Group, Inc. Through The Mason & Hanger Group Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$7,002,630	0.3%	Rank history: #64 in FY2022, #32 in FY2023, #86 in FY2024 and not on the FY2025 list; up 52 since FY2020.
45	Mndpi Pacific JV Top agencies Navy (Department of the Navy)	$6,683,248	0.3%	Rank history: not on the FY2022–FY2025 lists; up 384 since FY2020.
46	MJ Engineering, Architecture, Landscape Architecture, and Land Surveying P.C. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$6,466,124	0.3%	Rank history: not on the FY2022 list, #53 in FY2023, #76 in FY2024 and not on the FY2025 list; up 75 since FY2020.
47	EXP U.S. Services Inc. 2 awardees, including EXP Federal Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$6,462,884	0.3%	Rank history: #63 in FY2022, not on the FY2023 list, #27 in FY2024 and #9 in FY2025; up 119 since FY2020.
48	JCC Engineering Services, Inc. Top agencies DOJ (Department of Justice)	$6,234,049	0.3%	Rank history: not on the FY2022–FY2025 lists; up 215 since FY2020.
49	Affiliated Engineers Inc. 2 awardees, including Affiliated Engineers Metro DC, Inc. and Affiliated Engineers SE, Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$6,173,626	0.3%	Rank history: not on the FY2022 list, #52 in FY2023 and not on the FY2024–FY2025 lists; up 238 since FY2020.
50	Plexus-Ayuda Joint Venture LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$6,155,467	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Grunley Construction Co., Inc.	$6,059,000	0.3%	Rank history: #31 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
52	Princeton Hydro LLC Top agencies Army (Department of the Army)	$5,940,922	0.3%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; up 140 since FY2020.
53	Qri-Mse JV LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$5,938,452	0.3%	Rank history: not on the FY2022–FY2025 lists; up 123 since FY2020.
54	LRS Federal LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$5,906,767	0.3%	Rank history: not on the FY2022–FY2025 lists; up 93 since FY2020.
55	Annum Architects, Inc. Top agencies DOS (Department of State)	$5,884,591	0.3%	Rank history: not on the FY2022–FY2025 lists; up 118 since FY2020.
56	Bluestone Environmental Group, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$5,795,819	0.3%	Rank history: not on the FY2022–FY2025 lists; up 63 since FY2020.
57	Mn-Bmcd JV Top agencies Navy (Department of the Navy)	$5,716,017	0.3%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; down 26 since FY2020.
58	Bitar Muhandesoun Mustasharoun Top agencies USAID (US Agency for International Development)	$5,677,779	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Wiley & Wilson, Inc. 2 awardees Top agencies Army (Department of the Army) DIA (Defense Intelligence Agency) DOI (Department of the Interior)	$5,656,916	0.3%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
60	Sevenson Environmental Services, Inc. Top agencies Navy (Department of the Navy)	$5,599,736	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Jacobs Government Services Company Top agencies Army (Department of the Army) DOJ (Department of Justice) Navy (Department of the Navy)	$5,554,054	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; up 72 since FY2020.
62	Itms, Inc. Top agencies Navy (Department of the Navy)	$5,418,927	0.2%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
63	CDM - AECOM Multimedia Joint Venture Top agencies Navy (Department of the Navy)	$5,407,130	0.2%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
64	Vali Cooper International LLC Top agencies DOE (Department of Energy) VA (Department of Veterans Affairs) Army (Department of the Army)	$5,398,777	0.2%	Rank history: #74 in FY2022, not on the FY2023–FY2024 lists and #89 in FY2025; up 135 since FY2020.
65	Montrose Environmental Group Inc. Through MSE Group LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$5,315,593	0.2%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
66	DMG Information Inc Through The Sanborn Map Company, Inc. Top agencies DOI (Department of the Interior)	$5,305,818	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Meadows Cmpg, Inc. Top agencies Navy (Department of the Navy)	$5,285,400	0.2%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; down 12 since FY2020.
68	Helber Hastert & Fee Planners Inc. Top agencies Navy (Department of the Navy) DIA (Defense Intelligence Agency)	$5,218,702	0.2%	Rank history: #55 in FY2022, #78 in FY2023, not on the FY2024 list and #42 in FY2025; up 119 since FY2020.
69	Otak, Inc. Top agencies DOI (Department of the Interior)	$5,206,856	0.2%	Rank history: not on the FY2022–FY2025 lists; up 92 since FY2020.
70	Michael Baker International, LLC 6 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$4,944,186	0.2%	Rank history: #60 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
71	Schnabel-Hdr Joint Venture Top agencies Army (Department of the Army)	$4,932,542	0.2%	Rank history: not on the FY2022 list, #79 in FY2023 and not on the FY2024–FY2025 lists; up 170 since FY2020.
72	Mantech International Corporation Through Mantech SRS Technologies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$4,923,567	0.2%	Rank history: #57 in FY2022, #25 in FY2023, #78 in FY2024 and not on the FY2025 list; down 23 since FY2020.
73	Etrac, A Woolpert Company Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$4,913,100	0.2%	Rank history: #72 in FY2022, #39 in FY2023, #97 in FY2024 and #52 in FY2025; down 8 since FY2020.
74	KZF Design Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DOJ (Department of Justice)	$4,788,451	0.2%	Rank history: not on the FY2022–FY2025 lists; up 65 since FY2020.
75	HOK Group, Inc. Through Hellmuth, Obata & Kassabaum, P.C. Top agencies HHS (Department of Health and Human Services)	$4,753,289	0.2%	Rank history: #84 in FY2022, #82 in FY2023 and not on the FY2024–FY2025 lists; up 196 since FY2020.
76	Parsons Corporation 3 awardees, including Parsons Government Services Inc. Top agencies Army (Department of the Army) DIA (Defense Intelligence Agency) Navy (Department of the Navy)	$4,732,901	0.2%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; down 40 since FY2020.
77	Terrasond Limited Top agencies Commerce (Department of Commerce)	$4,709,346	0.2%	Rank history: not on the FY2022 list, #88 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2020.
78	Smith Reynolds and Hills Inc 2 awardees, including Rs&H, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$4,596,837	0.2%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
79	Liberty JV Top agencies Navy (Department of the Navy)	$4,455,768	0.2%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
80	Summer Consultants, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) HHS (Department of Health and Human Services)	$4,446,077	0.2%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; up 87 since FY2020.
81	RLF and Sherlock Smith and Adams JV Top agencies Navy (Department of the Navy)	$4,389,322	0.2%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
82	Moca Systems, Inc. Top agencies Army (Department of the Army)	$4,339,852	0.2%	Rank history: not on the FY2022 list, #99 in FY2023, not on the FY2024 list and #81 in FY2025; up 158 since FY2020.
83	Aerial Services, Inc. Top agencies DOI (Department of the Interior)	$4,324,504	0.2%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
84	Burns & Mcdonnell EA JV Top agencies Army (Department of the Army)	$4,268,577	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Marine Solutions Inc. Top agencies Navy (Department of the Navy)	$4,235,611	0.2%	Rank history: not on the FY2022–FY2025 lists; up 139 since FY2020.
86	Cbec ECO Engineering, LLP Top agencies DOI (Department of the Interior)	$4,223,093	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Athena Engineering & Environmental, LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) USDA (Department of Agriculture)	$4,215,272	0.2%	Rank history: #50 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
88	David Evans Enterprises Inc. Through David Evans and Associates, Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$4,187,492	0.2%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 388 since FY2020.
89	Reid Middleton, Inc. 2 awardees Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Navy (Department of the Navy)	$4,160,418	0.2%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
90	Merrick-Surdex Joint Venture LLP Top agencies DOI (Department of the Interior)	$4,122,898	0.2%	Rank history: #37 in FY2022, #34 in FY2023, #56 in FY2024 and #23 in FY2025; down 56 since FY2020.
91	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs)	$3,978,378	0.2%	Rank history: not on the FY2022–FY2023 lists, #71 in FY2024 and #57 in FY2025; new, not ranked in FY2020.
92	Hb&A, LLC Top agencies Army (Department of the Army)	$3,900,543	0.2%	Rank history: not on the FY2022–FY2025 lists; up 110 since FY2020.
93	Quinlivan Pierik & Krause - Architects / Engineers LLP Top agencies Army (Department of the Army)	$3,832,175	0.2%	Rank history: not on the FY2022–FY2025 lists; up 79 since FY2020.
94	Geodynamics LLC Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$3,815,184	0.2%	Rank history: not on the FY2022–FY2025 lists; down 24 since FY2020.
95	Kenneth Hahn Architects Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$3,726,916	0.2%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
96	Clemons-Cam JV Top agencies Army (Department of the Army)	$3,724,633	0.2%	Rank history: not on the FY2022–FY2025 lists; up 390 since FY2020.
97	Wiley Wilson Burns & Mcdonnell Joint Venture Top agencies Navy (Department of the Navy) Army (Department of the Army) USUHS (DOD Uniformed Services University of the Health Sciences)	$3,720,025	0.2%	Rank history: not on the FY2022 list, #72 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
98	Singhofen & Associates, Inc. Top agencies Army (Department of the Army)	$3,718,082	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Bamforth Engineers + Surveyors, Inc. Top agencies Navy (Department of the Navy)	$3,581,429	0.2%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; down 70 since FY2020.
100	Guidon-Cmta JV LLC Top agencies Army (Department of the Army)	$3,561,792	0.2%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.

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100 of 953 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 $2.2 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 C219 contractors in FY2021?

1. Hdr, Inc. ($97.2M), 2. The Compass PTS JV ($92M), 3. Starr II, A Joint Venture ($74.8M), 4. Tetra Tech, Inc. ($72.9M), 5. Burns & Mcdonnell, Inc. ($65.3M), 6. AECOM ($54.2M), 7. Jacobs / Hdr, A Joint Venture (Navfac Atlantic Srm) ($46.8M), 8. Camp Dresser & Mckee Inc. ($42.6M), 9. Jacobs Engineering Group Inc. ($31.5M), 10. RBA Group the ($30.2M).

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