Top 100 Contractors in NAICS 541310: Architectural Services, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top agencies DOS (Department of State)	$780,559,560	42.1%	Rank history: not on the FY2021 list, #11 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
2	HOK Group, Inc. 3 awardees, including Hellmuth, Obata & Kassabaum, Inc. Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration) Army (Department of the Army)	$34,851,262	1.9%	Rank history: #84 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 170 since FY2022.
3	AECOM 6 awardees, including Aecom-Baker Navfac Atlantic A-E Design JV, AECOM Services, LLC and AECOM Technical Services, Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) USAF (Department of the Air Force)	$28,322,009	1.5%	Rank history: #2 in FY2021, #2 in FY2022, #6 in FY2024 and #13 in FY2025; down 1 since FY2022.
4	Kierantimberlake LLC Top agencies DOS (Department of State)	$26,806,489	1.4%	Rank history: #70 in FY2021, not on the FY2022 list, not on the FY2024 list and #53 in FY2025; up 105 since FY2022.
5	Jacobs Engineering Group Inc. 10 awardees, including Jacobs Government Services Company, Ch2M - Burns & Mcdonnell Joint Venture and Ch2M Hill, Inc. Top agencies Navy (Department of the Navy) Treasury (Department of the Treasury) DOJ (Department of Justice)	$26,508,788	1.4%	Rank history: #9 in FY2021, #8 in FY2022, #48 in FY2024 and not on the FY2025 list; up 3 since FY2022.
6	LEO a Daly and Huitt Zollars, a Joint Venture 5 awardees, including LEO A. Daly LLC and LEO A Daly + Nbbj JV Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation) NARA (National Archives and Records Administration)	$24,086,789	1.3%	Rank history: not on the FY2021 list, #77 in FY2022, #67 in FY2024 and not on the FY2025 list; up 71 since FY2022.
7	Green Powered Technology LLC Top agencies USAID (US Agency for International Development)	$18,802,972	1.0%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2024 and not on the FY2025 list; up 142 since FY2022.
8	Jacobs Government Services Company 2 awardees Top agencies Army (Department of the Army) DOJ (Department of Justice) DOS (Department of State)	$17,724,001	1.0%	Rank history: #76 in FY2021, #67 in FY2022, #2 in FY2024 and #1 in FY2025; up 59 since FY2022.
9	Hdr, Inc. 12 awardees, including HDR Engineering, Inc., HDR Architecture, Inc. and HDR Wtna JV Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) Army (Department of the Army)	$17,462,067	0.9%	Rank history: #12 in FY2021, #3 in FY2022, #23 in FY2024 and #15 in FY2025; down 6 since FY2022.
10	Snow Kreilich Architects Inc. Top agencies GSA (General Services Administration)	$16,332,821	0.9%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #76 in FY2025; up 263 since FY2022.
11	Ennead Architects LLP Top agencies DOS (Department of State) GSA (General Services Administration)	$16,004,080	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Zimmer Gunsul Frasca Architects LLP Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$15,168,160	0.8%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #5 in FY2025; up 145 since FY2022.
13	Davis Brody Bond, LLP Top agencies GSA (General Services Administration)	$14,836,182	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
14	Davis Brody Bond-Spacesmith A Joint Venture Top agencies GSA (General Services Administration)	$14,243,115	0.8%	Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2024 list and #80 in FY2025; up 60 since FY2022.
15	Krueck & Sexton Architects, Ltd Top agencies DOS (Department of State) GSA (General Services Administration) HHS (Department of Health and Human Services)	$13,877,695	0.7%	Rank history: #3 in FY2021, #19 in FY2022, #20 in FY2024 and #42 in FY2025; up 4 since FY2022.
16	SC Companies, Inc. Through Stanley Consultants, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOI (Department of the Interior)	$13,609,013	0.7%	Rank history: #23 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
17	Woolpert-Rs&H LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$13,449,027	0.7%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2024 and not on the FY2025 list; new.
18	Shop Architects, Inc. Top agencies DOS (Department of State)	$13,284,721	0.7%	Rank history: #25 in FY2021, #21 in FY2022, #71 in FY2024 and #81 in FY2025; up 3 since FY2022.
19	Morphosis Architects Top agencies DOS (Department of State) GSA (General Services Administration)	$12,834,068	0.7%	Rank history: #64 in FY2021, not on the FY2022 list, not on the FY2024 list and #71 in FY2025; up 145 since FY2022.
20	Jacobs / Ewingcole, A Joint Venture Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$12,801,249	0.7%	Rank history: #1 in FY2021, #1 in FY2022, #15 in FY2024 and #69 in FY2025; down 19 since FY2022.
21	Andrew C Chen 3 awardees Top agencies Navy (Department of the Navy) GSA (General Services Administration) DOJ (Department of Justice)	$12,792,388	0.7%	Rank history: #63 in FY2021, #49 in FY2022, #34 in FY2024 and #33 in FY2025; up 28 since FY2022.
22	RMA Architects Inc. Top agencies Navy (Department of the Navy)	$12,404,969	0.7%	Rank history: not on the FY2021 list, #32 in FY2022, #22 in FY2024 and #11 in FY2025; up 10 since FY2022.
23	Allied Works Architecture Inc. Top agencies DOS (Department of State)	$12,146,218	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 224 since FY2022.
24	M Arthur Gensler JR & Associates Inc. 5 awardees Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$12,042,456	0.7%	Rank history: #26 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; up 39 since FY2022.
25	Helber Hastert & Fee Planners Inc. Top agencies Navy (Department of the Navy)	$12,019,361	0.6%	Rank history: #48 in FY2021, #20 in FY2022, #64 in FY2024 and #18 in FY2025; down 5 since FY2022.
26	Spur Design LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$11,927,684	0.6%	Rank history: #14 in FY2021, #12 in FY2022, #82 in FY2024 and #35 in FY2025; down 14 since FY2022.
27	Tetra Tech, Inc. 2 awardees Top agencies USAID (US Agency for International Development) DECA (Defense Commissary Agency)	$11,065,028	0.6%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2024 and #10 in FY2025; up 136 since FY2022.
28	Annum Architects, Inc. Top agencies Smithsonian (Smithsonian Institution) DOS (Department of State)	$10,670,326	0.6%	Rank history: #30 in FY2021, #89 in FY2022, #18 in FY2024 and not on the FY2025 list; up 61 since FY2022.
29	Smithgroup Companies, Inc. 4 awardees, including Smithgroup, Inc. Top agencies SSA (Social Security Administration) HHS (Department of Health and Human Services) Smithsonian (Smithsonian Institution)	$10,209,349	0.6%	Rank history: #4 in FY2021, #10 in FY2022, #9 in FY2024 and not on the FY2025 list; down 19 since FY2022.
30	Michael Baker International, LLC 4 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) GSA (General Services Administration)	$9,229,531	0.5%	Rank history: #93 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 150 since FY2022.
31	Lend Lease Corporation Ltd Through Lendlease (Us) Construction Inc. Top agencies Smithsonian (Smithsonian Institution)	$9,034,190	0.5%	Rank history: #6 in FY2021, #16 in FY2022, #17 in FY2024 and not on the FY2025 list; down 15 since FY2022.
32	Explore Design, LLC Top agencies Army (Department of the Army)	$8,707,238	0.5%	Rank history: not on the FY2021 list, #54 in FY2022 and not on the FY2024–FY2025 lists; up 22 since FY2022.
33	Skidmore, Owings & Merrill LLP 3 awardees Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) Army (Department of the Army)	$8,587,687	0.5%	Rank history: #17 in FY2021, #22 in FY2022, #91 in FY2024 and not on the FY2025 list; down 11 since FY2022.
34	Toland Mizell Molnar LLC Top agencies VA (Department of Veterans Affairs)	$8,322,279	0.4%	Rank history: #47 in FY2021, #60 in FY2022, #36 in FY2024 and not on the FY2025 list; up 26 since FY2022.
35	Gwwo, Inc. Top agencies DOI (Department of the Interior) Smithsonian (Smithsonian Institution)	$8,284,793	0.4%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #37 in FY2025; up 123 since FY2022.
36	Som-Selldorf Architects - A Joint Venture Top agencies Smithsonian (Smithsonian Institution)	$7,846,630	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Camp Dresser & Mckee Inc. 2 awardees, including CDM International Inc. and CDM Federal Programs Corporation Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force)	$7,741,969	0.4%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2024 and not on the FY2025 list; up 256 since FY2022.
38	Ewing Cole Inc. Top agencies Smithsonian (Smithsonian Institution)	$6,916,869	0.4%	Rank history: not on the FY2021 list, #25 in FY2022, #14 in FY2024 and #19 in FY2025; down 13 since FY2022.
39	Elk Consortium LLC Top agencies VA (Department of Veterans Affairs)	$6,765,848	0.4%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #85 in FY2025; up 79 since FY2022.
40	AE Works Ltd 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) AFRH (Armed Forces Retirement Home)	$6,388,403	0.3%	Rank history: #44 in FY2021, #26 in FY2022, #30 in FY2024 and not on the FY2025 list; down 14 since FY2022.
41	N.k. Bhandari, Architecture & Engineering, P.C. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$6,245,209	0.3%	Rank history: #36 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; up 51 since FY2022.
42	Atriax, P.L.L.C. Top agencies VA (Department of Veterans Affairs)	$5,865,373	0.3%	Rank history: #15 in FY2021, #96 in FY2022 and not on the FY2024–FY2025 lists; up 54 since FY2022.
43	North Arrow Inc Top agencies DOJ (Department of Justice) DOE (Department of Energy)	$5,719,348	0.3%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and not on the FY2025 list; new.
44	The Miller / Hull Partnership, LLP Top agencies DOS (Department of State)	$5,714,255	0.3%	Rank history: #10 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
45	Dattner Architects DPC Top agencies GSA (General Services Administration) DOJ (Department of Justice) SSA (Social Security Administration)	$5,650,326	0.3%	Rank history: #41 in FY2021, not on the FY2022 list, #5 in FY2024 and #25 in FY2025; up 56 since FY2022.
46	Nagel Services LLC 2 awardees Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$5,615,750	0.3%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
47	Romanyk Consulting Corporation Top agencies VA (Department of Veterans Affairs)	$5,474,613	0.3%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and not on the FY2025 list; up 401 since FY2022.
48	National Institute of Building Sciences Top agencies DOS (Department of State) USAF (Department of the Air Force) Army (Department of the Army)	$5,458,722	0.3%	Rank history: not on the FY2021 list, #44 in FY2022, #25 in FY2024 and #32 in FY2025; down 4 since FY2022.
49	Marlon Blackwell Architects, P.a. Top agencies DOS (Department of State)	$5,447,979	0.3%	Rank history: #13 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
50	Line and Space, LLC Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$5,302,242	0.3%	Rank history: not on the FY2021 list, #100 in FY2022, #69 in FY2024 and not on the FY2025 list; up 50 since FY2022.
51	1100 Architect PC Top agencies DOS (Department of State)	$5,281,041	0.3%	Rank history: #80 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 83 since FY2022.
52	Architects Pacific, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,115,379	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 68 since FY2022.
53	RDC JPA Architecture, L.L.L.P. Top agencies VA (Department of Veterans Affairs)	$5,071,781	0.3%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #30 in FY2025; up 80 since FY2022.
54	Superstructures Engineering + Architecture, PLLC Top agencies GSA (General Services Administration)	$5,068,638	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	Ayers / Saint / Gross, Incorporated Top agencies Smithsonian (Smithsonian Institution) DOI (Department of the Interior)	$5,014,002	0.3%	Rank history: #33 in FY2021, #23 in FY2022, #53 in FY2024 and not on the FY2025 list; down 32 since FY2022.
56	Mtfa Architecture, P.L.L.C. Top agencies Navy (Department of the Navy) GSA (General Services Administration) DOI (Department of the Interior)	$5,008,935	0.3%	Rank history: #88 in FY2021, #75 in FY2022, #35 in FY2024 and #54 in FY2025; up 19 since FY2022.
57	Charlotte Engineers-Guidon JV LLC Top agencies VA (Department of Veterans Affairs)	$4,976,058	0.3%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2024 and not on the FY2025 list; new.
58	KPB Architects Coffman Engineers JV Top agencies Army (Department of the Army)	$4,933,056	0.3%	Rank history: not on the FY2021 list, #30 in FY2022, not on the FY2024 list and #26 in FY2025; down 28 since FY2022.
59	RLF and Sherlock Smith and Adams JV Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$4,917,462	0.3%	Rank history: #5 in FY2021, #5 in FY2022, #10 in FY2024 and #50 in FY2025; down 54 since FY2022.
60	Fathom Architecture, LLC Top agencies Navy (Department of the Navy)	$4,780,127	0.3%	Rank history: not on the FY2021 list, #33 in FY2022, #29 in FY2024 and #29 in FY2025; down 27 since FY2022.
61	Whitman Requardt & Associates LLP Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,744,135	0.3%	Rank history: #24 in FY2021, #13 in FY2022, not on the FY2024 list and #75 in FY2025; down 48 since FY2022.
62	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs)	$4,677,316	0.3%	Rank history: #11 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
63	Valhalla Engineering Group LLC Top agencies VA (Department of Veterans Affairs)	$4,508,460	0.2%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #31 in FY2025; up 389 since FY2022.
64	Stone Group Architects, Inc. Top agencies VA (Department of Veterans Affairs)	$4,459,159	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #74 in FY2025; up 119 since FY2022.
65	Above Group Inc. Top agencies VA (Department of Veterans Affairs)	$4,337,410	0.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and #70 in FY2025; up 123 since FY2022.
66	Croft and Associates, Inc. Top agencies DOI (Department of the Interior)	$4,247,451	0.2%	Rank history: #51 in FY2021, #72 in FY2022, #79 in FY2024 and not on the FY2025 list; up 6 since FY2022.
67	Studio MA, Inc. Top agencies DOS (Department of State) GSA (General Services Administration)	$4,105,593	0.2%	Rank history: #90 in FY2021, #7 in FY2022, #87 in FY2024 and #21 in FY2025; down 60 since FY2022.
68	Guidon Design Inc. Top agencies VA (Department of Veterans Affairs)	$4,061,686	0.2%	Rank history: #43 in FY2021, #41 in FY2022, #38 in FY2024 and not on the FY2025 list; down 27 since FY2022.
69	Strata Architecture Inc. Top agencies DOI (Department of the Interior) GSA (General Services Administration) USDA (Department of Agriculture)	$4,020,768	0.2%	Rank history: not on the FY2021 list, #31 in FY2022, #49 in FY2024 and #40 in FY2025; down 38 since FY2022.
70	Perkins + Will Inc. 2 awardees Top agencies GSA (General Services Administration) Smithsonian (Smithsonian Institution)	$4,009,942	0.2%	Rank history: not on the FY2021 list, #78 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
71	Design Partners, Incorporated Top agencies Navy (Department of the Navy)	$3,880,053	0.2%	Rank history: not on the FY2021 list, #83 in FY2022, #80 in FY2024 and #56 in FY2025; up 12 since FY2022.
72	Richard & Kennedy Architects, LLC Top agencies DOS (Department of State)	$3,760,708	0.2%	Rank history: #8 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 68 since FY2022.
73	Wiss, Janney, Elstner Associates, Inc. 2 awardees Top agencies DOI (Department of the Interior) DOS (Department of State) GSA (General Services Administration)	$3,654,089	0.2%	Rank history: not on the FY2021 list, #28 in FY2022, #41 in FY2024 and #98 in FY2025; down 45 since FY2022.
74	Haskoningdhv Nederland B.V. Through Haskoningdhv Mocambique, LDA Top agencies USAID (US Agency for International Development)	$3,623,542	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Jones Studio Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security)	$3,577,924	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 274 since FY2022.
76	Beyer Blinder Belle, Architects and Planners, LLP 2 awardees Top agencies National Gallery of Art DOS (Department of State) DOI (Department of the Interior)	$3,556,740	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 84 since FY2022.
77	Anderson Hallas Architects, PC Top agencies DOI (Department of the Interior)	$3,529,788	0.2%	Rank history: #31 in FY2021, #29 in FY2022, #43 in FY2024 and #22 in FY2025; down 48 since FY2022.
78	Thinkform Design Architect LLC Top agencies VA (Department of Veterans Affairs)	$3,392,159	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #83 in FY2025; new.
79	J.C. Chang & Associates Inc. Top agencies DOJ (Department of Justice)	$3,309,503	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #66 in FY2025; new.
80	Quinn Evans Architects Inc. Top agencies DOI (Department of the Interior) National Gallery of Art Smithsonian (Smithsonian Institution)	$3,272,573	0.2%	Rank history: #32 in FY2021, #95 in FY2022, #16 in FY2024 and #17 in FY2025; up 15 since FY2022.
81	Stantec Inc. 4 awardees, including Stantec Consulting Services Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) USAF (Department of the Air Force)	$3,269,809	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2024 and #52 in FY2025; new.
82	Miller-Remick, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$3,178,104	0.2%	Rank history: #53 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 74 since FY2022.
83	CB Design Group, Inc. 2 awardees, including Bravo Zulu LLC Top agencies VA (Department of Veterans Affairs)	$3,124,222	0.2%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2024 and not on the FY2025 list; up 222 since FY2022.
84	Mtfa Architecture, Inc. Top agencies Navy (Department of the Navy) DOS (Department of State) USUHS (DOD Uniformed Services University of the Health Sciences)	$3,098,072	0.2%	Rank history: #61 in FY2021, #51 in FY2022, #83 in FY2024 and #38 in FY2025; down 33 since FY2022.
85	Page-Loring LLC Top agencies Smithsonian (Smithsonian Institution)	$3,069,347	0.2%	Rank history: #7 in FY2021, #37 in FY2022, #86 in FY2024 and not on the FY2025 list; down 48 since FY2022.
86	Bailey Edward Design, Inc. Top agencies GSA (General Services Administration) DOI (Department of the Interior) DHS (Department of Homeland Security)	$3,044,628	0.2%	Rank history: #94 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
87	Architrave P.C. Top agencies Smithsonian (Smithsonian Institution) GSA (General Services Administration)	$2,988,372	0.2%	Rank history: not on the FY2021 list, #38 in FY2022, #68 in FY2024 and not on the FY2025 list; down 49 since FY2022.
88	WSP - Moca Joint Venture Top agencies Army (Department of the Army)	$2,903,673	0.2%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and not on the FY2025 list; new.
89	Leetex Group LLC Top agencies HUD (Department of Housing and Urban Development)	$2,602,653	0.1%	Rank history: #20 in FY2021, #93 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
90	Richter Associates Architects Inc. Top agencies GSA (General Services Administration) DOJ (Department of Justice) AOUSC (Administrative Office of the U.S. Courts)	$2,595,804	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #92 in FY2025; up 197 since FY2022.
91	Baxter Hodell Donnelly Preston Inc. Top agencies GSA (General Services Administration) NRC (Nuclear Regulatory Commission)	$2,571,784	0.1%	Rank history: #54 in FY2021, not on the FY2022 list, not on the FY2024 list and #36 in FY2025; up 114 since FY2022.
92	WSP E&I - Zapata Joint Venture Top agencies USAF (Department of the Air Force)	$2,568,824	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 133 since FY2022.
93	Marble Fairbanks Architects Top agencies DOI (Department of the Interior)	$2,558,492	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 96 since FY2022.
94	DHM Design Corporation Top agencies DOI (Department of the Interior)	$2,523,784	0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and #41 in FY2025; new.
95	Black & Veatch Special Projects Corp. Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency)	$2,496,436	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 118 since FY2022.
96	EXP U.S. Services Inc. 2 awardees, including EXP Federal Inc. Top agencies DOT (Department of Transportation) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$2,486,722	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 202 since FY2022.
97	The Urban Collaborative, Llc: Master Planning, Urban Design, and Architecture Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,467,608	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2024 and #64 in FY2025; up 27 since FY2022.
98	Ritter Norton Architects PLLC Top agencies DOS (Department of State) GSA (General Services Administration)	$2,430,572	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 133 since FY2022.
99	Borton-Lawson Engineering, LLC Top agencies Treasury (Department of the Treasury)	$2,377,056	0.1%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
100	Smrt Inc. Top agencies DOJ (Department of Justice)	$2,373,675	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 255 since FY2022.

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 $1.85 billion obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2023 ran Oct 1, 2022 – Sep 30, 2023. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2022. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2022 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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