Top 100 Contractors in NAICS 541310: Architectural Services, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	AECOM 5 awardees, including AECOM Technical Services, Inc., AECOM Services, LLC and Aecom-Baker Navfac Atlantic A-E Design JV Top agencies USAID (US Agency for International Development) DHS (Department of Homeland Security) DOJ (Department of Justice)	$59,106,993	8.1%	Rank history: #2 in FY2021, #2 in FY2022, #3 in FY2023, #6 in FY2024 and #1 in FY2025; up 10 since Aug 2024–Jul 2025.
2	Hdr, Inc. 9 awardees, including HDR Engineering Inc. and HDR Architecture, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$44,405,229	6.1%	Rank history: #12 in FY2021, #3 in FY2022, #9 in FY2023, #23 in FY2024 and #14 in FY2025; up 13 since Aug 2024–Jul 2025.
3	National Institute of Building Sciences Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$41,470,597	5.7%	Rank history: not on the FY2021 list, #44 in FY2022, #48 in FY2023, #25 in FY2024 and #31 in FY2025; up 30 since Aug 2024–Jul 2025.
4	Jacobs Engineering Group Inc. 5 awardees, including Jacobs Government Services Company Top agencies Army (Department of the Army) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$26,121,974	3.6%	Rank history: #76 in FY2021, #67 in FY2022, #8 in FY2023, #2 in FY2024 and #2 in FY2025; down 3 since Aug 2024–Jul 2025.
5	North Arrow Inc. Top agencies DOJ (Department of Justice)	$24,430,186	3.3%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #33 in FY2024 and not on the FY2025 list; up 188 since Aug 2024–Jul 2025.
6	Michael Baker International, Inc. 4 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$24,023,487	3.3%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #24 in FY2025; up 3 since Aug 2024–Jul 2025.
7	Zimmer Gunsul Frasca Architects LLP Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$18,710,729	2.6%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023, not on the FY2024 list and #5 in FY2025; unchanged since Aug 2024–Jul 2025.
8	Annum Architects, Inc. Top agencies DOS (Department of State) Smithsonian (Smithsonian Institution)	$12,313,177	1.7%	Rank history: #30 in FY2021, #89 in FY2022, #28 in FY2023, #18 in FY2024 and not on the FY2025 list; up 147 since Aug 2024–Jul 2025.
9	Michael Baker - Design Alaska Joint Venture Top agencies Army (Department of the Army)	$10,445,604	1.4%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 480 since Aug 2024–Jul 2025.
10	Green Powered Technology LLC Top agencies USAID (US Agency for International Development)	$9,862,900	1.3%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023, #32 in FY2024 and not on the FY2025 list; up 130 since Aug 2024–Jul 2025.
11	Perkins+Will, Inc. Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) Smithsonian (Smithsonian Institution)	$9,627,660	1.3%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; up 96 since Aug 2024–Jul 2025.
12	Smith-Miller + Hawkinson Architects, LLP Top agencies GSA (General Services Administration)	$9,073,795	1.2%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023–FY2024 lists and #8 in FY2025; up 24 since Aug 2024–Jul 2025.
13	Shalom Baranes Associates, P.C. Top agencies GSA (General Services Administration) USDA (Department of Agriculture)	$8,402,860	1.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 97 since Aug 2024–Jul 2025.
14	Smithgroup, Inc. Top agencies SSA (Social Security Administration) Smithsonian (Smithsonian Institution) DHS (Department of Homeland Security)	$8,257,230	1.1%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
15	Gensler Architecture, Design & Planning, P.C. 2 awardees, including M Arthur Gensler JR & Associates Inc. Top agencies DOS (Department of State) DHS (Department of Homeland Security) GSA (General Services Administration)	$8,045,457	1.1%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #60 in FY2025; up 109 since Aug 2024–Jul 2025.
16	L2Eoculus JV LLC Top agencies VA (Department of Veterans Affairs)	$8,040,627	1.1%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
17	Anderson Hallas Architects, PC Top agencies DOI (Department of the Interior)	$7,933,264	1.1%	Rank history: #31 in FY2021, #29 in FY2022, #77 in FY2023, #43 in FY2024 and #21 in FY2025; up 18 since Aug 2024–Jul 2025.
18	LEO A Daly + Nbbj JV Top agencies GSA (General Services Administration) Navy (Department of the Navy)	$7,711,717	1.1%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #19 in FY2025; up 34 since Aug 2024–Jul 2025.
19	The Miller / Hull Partnership, LLP Top agencies GSA (General Services Administration) DOS (Department of State) DHS (Department of Homeland Security)	$7,386,802	1.0%	Rank history: #10 in FY2021, #56 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20	Quinn Evans Architects Inc. Top agencies National Gallery of Art DOI (Department of the Interior) Smithsonian (Smithsonian Institution)	$6,819,676	0.9%	Rank history: #32 in FY2021, #95 in FY2022, #80 in FY2023, #16 in FY2024 and #15 in FY2025; down 3 since Aug 2024–Jul 2025.
21	Studio MA, Inc. Top agencies DOS (Department of State)	$6,800,886	0.9%	Rank history: #90 in FY2021, #7 in FY2022, #67 in FY2023, #87 in FY2024 and #20 in FY2025; up 28 since Aug 2024–Jul 2025.
22	Weiss / Manfredi Architects LLP Top agencies DOS (Department of State)	$6,573,436	0.9%	Rank history: #69 in FY2021, not on the FY2022–FY2024 lists and #27 in FY2025; up 374 since Aug 2024–Jul 2025.
23	Stantec Inc. 5 awardees, including Stantec Consulting Services Inc. and Stantec / AECOM LLC Top agencies Smithsonian (Smithsonian Institution) Army (Department of the Army) VA (Department of Veterans Affairs)	$6,405,552	0.9%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, #77 in FY2024 and #47 in FY2025; up 5 since Aug 2024–Jul 2025.
24	Helber Hastert & Fee Planners Inc. Top agencies Navy (Department of the Navy)	$6,392,427	0.9%	Rank history: #48 in FY2021, #20 in FY2022, #25 in FY2023, #64 in FY2024 and #17 in FY2025; up 19 since Aug 2024–Jul 2025.
25	Page Southerland Page, Inc. 2 awardees Top agencies GSA (General Services Administration) Smithsonian (Smithsonian Institution) VA (Department of Veterans Affairs)	$6,247,324	0.9%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #46 in FY2025; up 72 since Aug 2024–Jul 2025.
26	RLF and Sherlock Smith and Adams JV Top agencies Navy (Department of the Navy) DHA (Defense Health Agency)	$5,567,201	0.8%	Rank history: #5 in FY2021, #5 in FY2022, #59 in FY2023, #10 in FY2024 and #51 in FY2025; up 5 since Aug 2024–Jul 2025.
27	The Urban Collaborative, Llc: Master Planning, Urban Design, and Architecture Top agencies Army (Department of the Army) Commerce (Department of Commerce)	$5,517,973	0.8%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, #37 in FY2024 and #63 in FY2025; up 147 since Aug 2024–Jul 2025.
28	Obrien Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$5,438,196	0.7%	Rank history: #57 in FY2021, #84 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; up 139 since Aug 2024–Jul 2025.
29	Mtfa Architecture, Inc. Top agencies Navy (Department of the Navy) DOS (Department of State)	$5,049,332	0.7%	Rank history: #61 in FY2021, #51 in FY2022, #84 in FY2023, #83 in FY2024 and #37 in FY2025; up 53 since Aug 2024–Jul 2025.
30	J.C. Chang & Associates Inc. Top agencies DOJ (Department of Justice)	$4,997,600	0.7%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023, not on the FY2024 list and #65 in FY2025; up 56 since Aug 2024–Jul 2025.
31	Andrew C Chen 2 awardees Top agencies Navy (Department of the Navy) GSA (General Services Administration)	$4,744,280	0.6%	Rank history: #63 in FY2021, #49 in FY2022, #21 in FY2023, #34 in FY2024 and #32 in FY2025; down 1 since Aug 2024–Jul 2025.
32	Schmidt-Prime Group, LLC Top agencies USAF (Department of the Air Force)	$4,446,118	0.6%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 52 since Aug 2024–Jul 2025.
33	Dattner Architects DPC Top agencies GSA (General Services Administration) SSA (Social Security Administration)	$4,351,575	0.6%	Rank history: #41 in FY2021, not on the FY2022 list, #45 in FY2023, #5 in FY2024 and #23 in FY2025; down 30 since Aug 2024–Jul 2025.
34	Fung Associates, Inc. Top agencies Army (Department of the Army)	$4,316,724	0.6%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	BL Harbert International LLC Top agencies DOS (Department of State)	$4,267,939	0.6%	Rank history: not on the FY2021–FY2025 lists; down 30 since Aug 2024–Jul 2025.
36	Strata Architecture Inc. Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security) GSA (General Services Administration)	$4,219,584	0.6%	Rank history: not on the FY2021 list, #31 in FY2022, #69 in FY2023, #49 in FY2024 and #39 in FY2025; up 26 since Aug 2024–Jul 2025.
37	WSP USA Solutions Inc 3 awardees, including WSP USA Inc. and WSP USA Environment & Infrastructure Inc. Top agencies Army (Department of the Army) Smithsonian (Smithsonian Institution) DOT (Department of Transportation)	$4,132,339	0.6%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; down 21 since Aug 2024–Jul 2025.
38	N.K. Bhandari Architecture & Engineering P.C. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) DCMA (Defense Contract Management Agency)	$4,061,274	0.6%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #50 in FY2025; up 25 since Aug 2024–Jul 2025.
39	Studios Architecture Top agencies GSA (General Services Administration) United States Tax Court	$3,935,399	0.5%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #49 in FY2025; up 49 since Aug 2024–Jul 2025.
40	Harrell Design Group PC Top agencies VA (Department of Veterans Affairs)	$3,878,891	0.5%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; up 223 since Aug 2024–Jul 2025.
41	Dewberry Engineers Inc. Top agencies DOJ (Department of Justice)	$3,834,544	0.5%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; up 60 since Aug 2024–Jul 2025.
42	CDM Smith Inc. 3 awardees, including CDM International Inc. and CDM Federal Programs Corporation Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force)	$3,695,354	0.5%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023, #27 in FY2024 and #9 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Gwwo, Inc. Top agencies DOI (Department of the Interior) Smithsonian (Smithsonian Institution)	$3,504,317	0.5%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #65 in FY2024 and #36 in FY2025; up 3 since Aug 2024–Jul 2025.
44	Fathom Architecture, LLC Top agencies Navy (Department of the Navy)	$3,465,210	0.5%	Rank history: not on the FY2021 list, #33 in FY2022, #60 in FY2023, #29 in FY2024 and #28 in FY2025; down 26 since Aug 2024–Jul 2025.
45	Kpb-Rim-Coffman Engineers JV Top agencies Army (Department of the Army)	$3,427,882	0.5%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 445 since Aug 2024–Jul 2025.
46	KPB Architects Coffman Engineers JV Top agencies Army (Department of the Army)	$3,420,012	0.5%	Rank history: not on the FY2021 list, #30 in FY2022, #58 in FY2023, not on the FY2024 list and #25 in FY2025; up 27 since Aug 2024–Jul 2025.
47	Ewing Cole Inc. Top agencies Smithsonian (Smithsonian Institution)	$3,396,456	0.5%	Rank history: not on the FY2021 list, #25 in FY2022, #38 in FY2023, #14 in FY2024 and #18 in FY2025; down 34 since Aug 2024–Jul 2025.
48	The Johnson-Mcadams Firm, P.a. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$3,090,853	0.4%	Rank history: not on the FY2021–FY2025 lists; up 87 since Aug 2024–Jul 2025.
49	Tetra Tech, Inc. 6 awardees, including Tetra TECH / Mason & Hanger Joint Venture, WJA PLLC and Tetra TECH / Mead and Hunt Joint Venture Top agencies DOJ (Department of Justice) USAF (Department of the Air Force)	$3,009,391	0.4%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #21 in FY2024 and #10 in FY2025; down 41 since Aug 2024–Jul 2025.
50	The Haskell Company 2 awardees, including Benham Design, LLC and Benham-Stanley, LLC Top agencies DOT (Department of Transportation) Army (Department of the Army) GSA (General Services Administration)	$2,962,722	0.4%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51	Pond-Woolpert, LLC Top agencies Army (Department of the Army)	$2,923,421	0.4%	Rank history: not on the FY2021 list, #36 in FY2022, not on the FY2023 list, #46 in FY2024 and #43 in FY2025; down 19 since Aug 2024–Jul 2025.
52	Miller-Remick - Michael Baker International JV Top agencies VA (Department of Veterans Affairs)	$2,917,466	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53	DHM Design Corporation Top agencies DOI (Department of the Interior)	$2,869,653	0.4%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #45 in FY2024 and #40 in FY2025; down 13 since Aug 2024–Jul 2025.
54	KAL Architects, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$2,731,024	0.4%	Rank history: #96 in FY2021, #70 in FY2022, not on the FY2023 list, #42 in FY2024 and #85 in FY2025; up 31 since Aug 2024–Jul 2025.
55	G.m. Hill Engineering, Inc. Top agencies USAF (Department of the Air Force)	$2,712,002	0.4%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 21 since Aug 2024–Jul 2025.
56	Maiden & Associates, PC Top agencies HUD (Department of Housing and Urban Development)	$2,661,295	0.4%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and not on the FY2025 list; up 63 since Aug 2024–Jul 2025.
57	Explore Design, LLC Top agencies Army (Department of the Army)	$2,639,612	0.4%	Rank history: not on the FY2021 list, #54 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 84 since Aug 2024–Jul 2025.
58	Practice for Architecture Urbanism DPC Top agencies DOT (Department of Transportation)	$2,638,934	0.4%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #44 in FY2025; down 44 since Aug 2024–Jul 2025.
59	Woolpert-Rs&H LLC Top agencies Army (Department of the Army)	$2,629,066	0.4%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #12 in FY2024 and not on the FY2025 list; down 30 since Aug 2024–Jul 2025.
60	Spur Design LLC Top agencies VA (Department of Veterans Affairs)	$2,620,641	0.4%	Rank history: #14 in FY2021, #12 in FY2022, #26 in FY2023, #82 in FY2024 and #34 in FY2025; down 6 since Aug 2024–Jul 2025.
61	Design Partners, Incorporated Top agencies Navy (Department of the Navy)	$2,549,997	0.3%	Rank history: not on the FY2021 list, #83 in FY2022, #71 in FY2023, #80 in FY2024 and #56 in FY2025; up 28 since Aug 2024–Jul 2025.
62	Siris LLC Top agencies Smithsonian (Smithsonian Institution)	$2,510,428	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
63	Guernsey / Tingle Architects, P.C. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$2,460,586	0.3%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 50 since Aug 2024–Jul 2025.
64	Architects Hawaii Ltd Top agencies DOI (Department of the Interior)	$2,430,848	0.3%	Rank history: #22 in FY2021 and not on the FY2022–FY2025 lists; up 181 since Aug 2024–Jul 2025.
65	Parsons Corporation Through Parsons Government Services Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,364,509	0.3%	Rank history: not on the FY2021 list, #57 in FY2022, not on the FY2023 list, #54 in FY2024 and #70 in FY2025; down 23 since Aug 2024–Jul 2025.
66	KPB Architects, Inc. Top agencies Army (Department of the Army)	$2,339,167	0.3%	Rank history: not on the FY2021–FY2025 lists; up 184 since Aug 2024–Jul 2025.
67	Stone Group Architects, Inc. Top agencies VA (Department of Veterans Affairs)	$2,302,315	0.3%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023, not on the FY2024 list and #73 in FY2025; up 1 since Aug 2024–Jul 2025.
68	RDC JPA Architecture, L.L.L.P. Top agencies VA (Department of Veterans Affairs)	$2,221,517	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023, #24 in FY2024 and #29 in FY2025; down 41 since Aug 2024–Jul 2025.
69	Hellmuth, Obata & Kassabaum, Inc. Top agencies GSA (General Services Administration) NRC (Nuclear Regulatory Commission)	$2,197,889	0.3%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and #4 in FY2025; down 65 since Aug 2024–Jul 2025.
70	PDG Inc. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts)	$2,174,439	0.3%	Rank history: not on the FY2021–FY2023 lists, #76 in FY2024 and not on the FY2025 list; up 55 since Aug 2024–Jul 2025.
71	Gurri Matute Cromwell JV LLC Top agencies USAF (Department of the Air Force)	$2,163,542	0.3%	Rank history: not on the FY2021 list, #69 in FY2022, not on the FY2023–FY2024 lists and #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Eci, Inc. Top agencies GSA (General Services Administration)	$2,137,448	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73	Wiley & Wilson, Inc. 2 awardees Top agencies DOT (Department of Transportation) DOS (Department of State)	$2,135,879	0.3%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 48 since Aug 2024–Jul 2025.
74	Valhalla Engineering Group LLC Top agencies VA (Department of Veterans Affairs)	$2,127,917	0.3%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2023, #51 in FY2024 and #30 in FY2025; down 48 since Aug 2024–Jul 2025.
75	Kierantimberlake LLC Top agencies DOS (Department of State)	$2,016,460	0.3%	Rank history: #70 in FY2021, not on the FY2022 list, #4 in FY2023, not on the FY2024 list and #53 in FY2025; unchanged since Aug 2024–Jul 2025.
76	Richter Associates Architects Inc. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts)	$2,009,289	0.3%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, not on the FY2024 list and #93 in FY2025; up 44 since Aug 2024–Jul 2025.
77	Duvall Decker Architects, P.A Top agencies USAF (Department of the Air Force) GSA (General Services Administration)	$2,006,303	0.3%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #72 in FY2025; up 34 since Aug 2024–Jul 2025.
78	Studio Gang Architects Ltd Top agencies DOS (Department of State)	$1,919,568	0.3%	Rank history: not on the FY2021 list, #17 in FY2022, not on the FY2023–FY2024 lists and #55 in FY2025; up 21 since Aug 2024–Jul 2025.
79	Raymond Pond Enterprise Solutions JV LLC Top agencies USAF (Department of the Air Force)	$1,894,263	0.3%	Rank history: not on the FY2021–FY2025 lists; up 67 since Aug 2024–Jul 2025.
80	Charlotte Engineers-Guidon JV LLC Top agencies VA (Department of Veterans Affairs)	$1,885,290	0.3%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023, #61 in FY2024 and not on the FY2025 list; up 106 since Aug 2024–Jul 2025.
81	Mills & Schnoering Architects LLC Top agencies Smithsonian (Smithsonian Institution) DOI (Department of the Interior)	$1,884,107	0.3%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and not on the FY2025 list; up 98 since Aug 2024–Jul 2025.
82	Architectural Design West PC Top agencies USAF (Department of the Air Force)	$1,856,399	0.3%	Rank history: not on the FY2021–FY2025 lists; up 14 since Aug 2024–Jul 2025.
83	Institute for Building Technology and Safety Top agencies DOT (Department of Transportation)	$1,821,760	0.2%	Rank history: not on the FY2021–FY2025 lists; up 184 since Aug 2024–Jul 2025.
84	Wcit-Gushiken JV Top agencies USAF (Department of the Air Force)	$1,810,913	0.2%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 114 since Aug 2024–Jul 2025.
85	Stanley Consultants, Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior) USAF (Department of the Air Force)	$1,708,041	0.2%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #58 in FY2025; down 37 since Aug 2024–Jul 2025.
86	Koniag, Inc. Through Koniag Technology Solutions Inc. Top agencies DOJ (Department of Justice)	$1,702,435	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Jacobs / Ewingcole, A Joint Venture Top agencies Navy (Department of the Navy)	$1,674,735	0.2%	Rank history: #1 in FY2021, #1 in FY2022, #20 in FY2023, #15 in FY2024 and #68 in FY2025; down 20 since Aug 2024–Jul 2025.
88	PDC BV Joint Venture Top agencies Army (Department of the Army)	$1,673,626	0.2%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 375 since Aug 2024–Jul 2025.
89	Wiss, Janney, Elstner Associates, Inc. 2 awardees Top agencies DOI (Department of the Interior) DOS (Department of State) GSA (General Services Administration)	$1,668,436	0.2%	Rank history: not on the FY2021 list, #28 in FY2022, #73 in FY2023, #41 in FY2024 and #75 in FY2025; up 4 since Aug 2024–Jul 2025.
90	Aoka LLC Top agencies HUD (Department of Housing and Urban Development)	$1,615,323	0.2%	Rank history: not on the FY2021–FY2025 lists; up 59 since Aug 2024–Jul 2025.
91	Atriax / DLR Group JV LLC Top agencies VA (Department of Veterans Affairs)	$1,594,793	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Rim / DPI Joint Venture LLC Top agencies Army (Department of the Army)	$1,572,461	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Marvel Architects Landscape Architects Urban Designers PLLC Top agencies GSA (General Services Administration)	$1,520,201	0.2%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and #22 in FY2025; down 71 since Aug 2024–Jul 2025.
94	Zapata / AME JV, LLC Top agencies USAF (Department of the Air Force)	$1,479,395	0.2%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 18 since Aug 2024–Jul 2025.
95	Alphatec P.C. Top agencies GSA (General Services Administration)	$1,425,956	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	D+S International LLC Top agencies DOS (Department of State)	$1,396,365	0.2%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; down 90 since Aug 2024–Jul 2025.
97	Mtfa Architecture, P.L.L.C. Top agencies Navy (Department of the Navy) GSA (General Services Administration) DOI (Department of the Interior)	$1,378,351	0.2%	Rank history: #88 in FY2021, #75 in FY2022, #56 in FY2023, #35 in FY2024 and #54 in FY2025; down 60 since Aug 2024–Jul 2025.
98	Hartman-Cox Architects LLP Top agencies Smithsonian (Smithsonian Institution) National Gallery of Art	$1,376,373	0.2%	Rank history: #82 in FY2021, not on the FY2022–FY2024 lists and #67 in FY2025; down 24 since Aug 2024–Jul 2025.
99	Krueck & Sexton Architects, Ltd Top agencies DOS (Department of State) GSA (General Services Administration) ED (Department of Education)	$1,368,473	0.2%	Rank history: #3 in FY2021, #19 in FY2022, #15 in FY2023, #20 in FY2024 and #41 in FY2025; down 55 since Aug 2024–Jul 2025.
100	Marble Fairbanks Architects Top agencies DOI (Department of the Interior) GSA (General Services Administration)	$1,341,708	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and not on the FY2024–FY2025 lists; up 43 since Aug 2024–Jul 2025.

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 $734 million 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Aug 2024–Jul 2025. "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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers