Top 100 Contractors in NAICS 54131: Architectural Services, FY2021

Name: Top 100 Contractors in NAICS 54131: Architectural Services, FY2021
Creator: GovTribe

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

The top 10 won 23% of FY2021 NAICS 54131 contract dollars

Contract obligations: $850,205,851 Net of deobligations, by contracts coded NAICS 54131 or a code under it
Contractors: 629 Parent companies with an obligation
Largest contractor: Jacobs / Ewingcole, A Joint Venture $32.8 million, 3.6% 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	Jacobs / Ewingcole, A Joint Venture Top agencies Navy (Department of the Navy)	$32,785,411	3.6%	Rank history: #1 in FY2022, #20 in FY2023, #15 in FY2024 and #69 in FY2025; unchanged since FY2020.
2	AECOM 13 awardees, including AECOM Technical Services, Inc., Aecom-Baker Navfac Atlantic A-E Design JV and AECOM Services, LLC Top agencies GSA (General Services Administration) Army (Department of the Army) USAF (Department of the Air Force)	$25,941,533	2.9%	Rank history: #2 in FY2022, #3 in FY2023, #6 in FY2024 and #13 in FY2025; up 13 since FY2020.
3	Krueck & Sexton Architects, Ltd Top agencies GSA (General Services Administration) DOS (Department of State) SSA (Social Security Administration)	$25,275,395	2.8%	Rank history: #19 in FY2022, #15 in FY2023, #20 in FY2024 and #42 in FY2025; up 22 since FY2020.
4	Smithgroup Companies, Inc. 3 awardees, including Smithgroup, Inc. Top agencies SSA (Social Security Administration) GSA (General Services Administration) HHS (Department of Health and Human Services)	$20,639,553	2.3%	Rank history: #10 in FY2022, #29 in FY2023, #9 in FY2024 and not on the FY2025 list; up 5 since FY2020.
5	RLF and Sherlock Smith and Adams JV Top agencies Navy (Department of the Navy)	$18,582,219	2.0%	Rank history: #5 in FY2022, #59 in FY2023, #10 in FY2024 and #50 in FY2025; up 1 since FY2020.
6	Lend Lease Corporation Ltd 2 awardees, including Lendlease (Us) Construction Inc. Top agencies Smithsonian (Smithsonian Institution)	$17,393,364	1.9%	Rank history: #16 in FY2022, #31 in FY2023, #17 in FY2024 and not on the FY2025 list; up 213 since FY2020.
7	Page-Loring LLC Top agencies Smithsonian (Smithsonian Institution) GSA (General Services Administration)	$17,278,088	1.9%	Rank history: #37 in FY2022, #85 in FY2023, #86 in FY2024 and not on the FY2025 list; down 4 since FY2020.
8	Richard & Kennedy Architects, LLC Top agencies DOS (Department of State)	$17,092,020	1.9%	Rank history: #4 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 99 since FY2020.
9	Jacobs Engineering Group Inc. 10 awardees, including Jacobs Government Services Co, Ch2M Hill, Inc. and Ch2M Hill - HDR JV Top agencies DECA (Defense Commissary Agency) Army (Department of the Army) DOJ (Department of Justice)	$16,884,473	1.9%	Rank history: #8 in FY2022, #5 in FY2023, #48 in FY2024 and not on the FY2025 list; down 2 since FY2020.
10	The Miller / Hull Partnership, LLP Top agencies DOS (Department of State)	$14,044,997	1.5%	Rank history: #56 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; up 73 since FY2020.
11	Anderson Engineering of Minnesota, LLC Top agencies VA (Department of Veterans Affairs)	$11,959,123	1.3%	Rank history: #53 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 54 since FY2020.
12	Hdr, Inc. 14 awardees, including HDR Engineering, Inc., HDR Architecture, Inc. and HDR Wtna JV Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$11,937,732	1.3%	Rank history: #3 in FY2022, #9 in FY2023, #23 in FY2024 and #15 in FY2025; down 7 since FY2020.
13	Marlon Blackwell Architects, P.a. Top agencies DOS (Department of State)	$11,807,141	1.3%	Rank history: not on the FY2022 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 57 since FY2020.
14	Spur Design, LLC Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation)	$11,236,767	1.2%	Rank history: #12 in FY2022, #26 in FY2023, #82 in FY2024 and #35 in FY2025; up 49 since FY2020.
15	Atriax, P.L.L.C. Top agencies VA (Department of Veterans Affairs)	$9,161,397	1.0%	Rank history: #96 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
16	Romanyk Consulting Corporation Top agencies VA (Department of Veterans Affairs)	$8,635,350	1.0%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
17	Skidmore, Owings & Merrill LLP 3 awardees Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) DOS (Department of State)	$8,534,438	0.9%	Rank history: #22 in FY2022, #33 in FY2023, #91 in FY2024 and not on the FY2025 list; up 56 since FY2020.
18	Valhalla Engineering Group, LLC Top agencies VA (Department of Veterans Affairs)	$8,489,176	0.9%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
19	Hammel Green & Abrahamson Inc. Top agencies DHS (Department of Homeland Security) GSA (General Services Administration) SSA (Social Security Administration)	$7,829,318	0.9%	Rank history: not on the FY2022–FY2025 lists; up 190 since FY2020.
20	Leetex Group LLC Top agencies HUD (Department of Housing and Urban Development)	$7,698,536	0.8%	Rank history: #93 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
21	Woolpert, Inc. 2 awardees, including Waller, Todd & Sadler, A Woolpert Company, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$7,510,750	0.8%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
22	Architects Hawaii Ltd Top agencies DOI (Department of the Interior)	$7,253,867	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
23	SC Companies, Inc. Through Stanley Consultants, Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior)	$6,793,204	0.7%	Rank history: #6 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
24	Whitman Requardt & Associates LLP Top agencies Navy (Department of the Navy) DOS (Department of State) WHS (DOD Washington Headquarters Service)	$6,467,199	0.7%	Rank history: #13 in FY2022, #61 in FY2023, not on the FY2024 list and #75 in FY2025; up 56 since FY2020.
25	Shop Architects, Inc. Top agencies DOS (Department of State)	$6,453,089	0.7%	Rank history: #21 in FY2022, #18 in FY2023, #71 in FY2024 and #81 in FY2025; down 15 since FY2020.
26	M Arthur Gensler JR & Associates Inc. 4 awardees, including Gensler Architecture, Design & Planning, P.C. Top agencies DHS (Department of Homeland Security) GSA (General Services Administration) HHS (Department of Health and Human Services)	$6,433,128	0.7%	Rank history: #63 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2020.
27	Institute Management LLC Top agencies DOS (Department of State)	$6,375,798	0.7%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
28	JCC Engineering Services, Inc. Top agencies DOJ (Department of Justice)	$6,234,049	0.7%	Rank history: not on the FY2022–FY2025 lists; up 149 since FY2020.
29	Lbyd Inc. Top agencies DOJ (Department of Justice)	$6,230,566	0.7%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
30	Annum Architects, Inc. Top agencies DOS (Department of State) Smithsonian (Smithsonian Institution)	$6,142,498	0.7%	Rank history: #89 in FY2022, #28 in FY2023, #18 in FY2024 and not on the FY2025 list; up 111 since FY2020.
31	Anderson Hallas Architects, PC Top agencies DOI (Department of the Interior) AOUSC (Administrative Office of the U.S. Courts)	$5,958,229	0.7%	Rank history: #29 in FY2022, #77 in FY2023, #43 in FY2024 and #22 in FY2025; down 8 since FY2020.
32	Quinn Evans Architects Inc. Top agencies DOI (Department of the Interior) Smithsonian (Smithsonian Institution) AOUSC (Administrative Office of the U.S. Courts)	$5,835,658	0.6%	Rank history: #95 in FY2022, #80 in FY2023, #16 in FY2024 and #17 in FY2025; up 18 since FY2020.
33	Ayers / Saint / Gross, Incorporated Top agencies Smithsonian (Smithsonian Institution)	$5,810,544	0.6%	Rank history: #23 in FY2022, #55 in FY2023, #53 in FY2024 and not on the FY2025 list; up 110 since FY2020.
34	Bitar Muhandesoun Mustasharoun Top agencies USAID (US Agency for International Development)	$5,677,779	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	WHR Architects, Inc. Through Page Southerland Page, Inc. Top agencies DHS (Department of Homeland Security) NARA (National Archives and Records Administration) DOS (Department of State)	$5,602,040	0.6%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 31 since FY2020.
36	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)	$5,510,896	0.6%	Rank history: #92 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
37	CTA Inc. 2 awardees Top agencies GSA (General Services Administration) DOI (Department of the Interior) DECA (Defense Commissary Agency)	$5,479,322	0.6%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; up 32 since FY2020.
38	FFE Environmental Services Inc. Top agencies VA (Department of Veterans Affairs)	$5,398,937	0.6%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; down 14 since FY2020.
39	Alliance Consulting Group Seven Generations AE JV LLC Top agencies VA (Department of Veterans Affairs)	$5,384,891	0.6%	Rank history: not on the FY2022–FY2023 lists, #85 in FY2024 and not on the FY2025 list; up 77 since FY2020.
40	Otak, Inc. Top agencies DOI (Department of the Interior)	$5,217,697	0.6%	Rank history: not on the FY2022–FY2025 lists; up 61 since FY2020.
41	Dattner Architects DPC Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security)	$5,210,280	0.6%	Rank history: not on the FY2022 list, #45 in FY2023, #5 in FY2024 and #25 in FY2025; down 19 since FY2020.
42	The Cannon Corporation 5 awardees, including Gkkworks Construction Services and Cannon Design, Inc. Top agencies VA (Department of Veterans Affairs)	$5,156,054	0.6%	Rank history: not on the FY2022–FY2025 lists; up 391 since FY2020.
43	Guidon Design Inc. Top agencies VA (Department of Veterans Affairs)	$5,120,559	0.6%	Rank history: #41 in FY2022, #68 in FY2023, #38 in FY2024 and not on the FY2025 list; up 28 since FY2020.
44	AE Works Ltd 2 awardees Top agencies VA (Department of Veterans Affairs) AFRH (Armed Forces Retirement Home) HHS (Department of Health and Human Services)	$4,973,287	0.5%	Rank history: #26 in FY2022, #40 in FY2023, #30 in FY2024 and not on the FY2025 list; down 26 since FY2020.
45	Trivers Associates, Inc. Top agencies GSA (General Services Administration)	$4,853,341	0.5%	Rank history: not on the FY2022–FY2025 lists; up 378 since FY2020.
46	Apogee-Cems JV LLC Top agencies VA (Department of Veterans Affairs)	$4,645,036	0.5%	Rank history: not on the FY2022–FY2025 lists; up 159 since FY2020.
47	Toland Mizell Molnar LLC Top agencies VA (Department of Veterans Affairs)	$4,417,104	0.5%	Rank history: #60 in FY2022, #34 in FY2023, #36 in FY2024 and not on the FY2025 list; down 21 since FY2020.
48	Helber Hastert & Fee Planners Inc. Top agencies Navy (Department of the Navy) DIA (Defense Intelligence Agency)	$4,262,276	0.5%	Rank history: #20 in FY2022, #25 in FY2023, #64 in FY2024 and #18 in FY2025; up 56 since FY2020.
49	Atkins Nuclear Secured Holdings Corporation Through Atkinsrealis USA Inc. Top agencies DOT (Department of Transportation)	$4,187,311	0.5%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; up 90 since FY2020.
50	Katmai Diversified Services LLC Top agencies Commerce (Department of Commerce)	$4,178,662	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Croft and Associates, Inc. Top agencies DOI (Department of the Interior)	$4,134,650	0.5%	Rank history: #72 in FY2022, #66 in FY2023, #79 in FY2024 and not on the FY2025 list; down 11 since FY2020.
52	DLR Holding Company 2 awardees, including DLR Group Inc. Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$3,957,728	0.4%	Rank history: not on the FY2022–FY2025 lists; up 108 since FY2020.
53	Miller-Remick, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$3,844,914	0.4%	Rank history: not on the FY2022 list, #82 in FY2023 and not on the FY2024–FY2025 lists; down 34 since FY2020.
54	Baxter Hodell Donnelly Preston Inc. Top agencies GSA (General Services Administration) Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$3,761,873	0.4%	Rank history: not on the FY2022 list, #91 in FY2023, not on the FY2024 list and #36 in FY2025; up 105 since FY2020.
55	Kenneth Hahn Architects Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) GSA (General Services Administration)	$3,728,557	0.4%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 34 since FY2020.
56	Apogee Consulting Group, P.a. Top agencies VA (Department of Veterans Affairs)	$3,686,832	0.4%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 70 since FY2020.
57	Obrien Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$3,655,330	0.4%	Rank history: #84 in FY2022, not on the FY2023–FY2024 lists and #27 in FY2025; up 53 since FY2020.
58	Nbaf Design Partnership Top agencies DHS (Department of Homeland Security)	$3,593,099	0.4%	Rank history: not on the FY2022–FY2025 lists; up 306 since FY2020.
59	GEO Bancroft Engineering LLC Top agencies VA (Department of Veterans Affairs)	$3,489,437	0.4%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
60	Cope Associates Inc. Top agencies USAF (Department of the Air Force)	$3,488,931	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Mtfa Architecture, Inc. Top agencies Navy (Department of the Navy) DOS (Department of State) GSA (General Services Administration)	$3,386,892	0.4%	Rank history: #51 in FY2022, #84 in FY2023, #83 in FY2024 and #38 in FY2025; down 47 since FY2020.
62	Hb&A Onyx Small Business Joint Venture Top agencies Army (Department of the Army)	$3,376,362	0.4%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
63	Andrew C Chen 3 awardees Top agencies GSA (General Services Administration) DOJ (Department of Justice) USDA (Department of Agriculture)	$3,304,861	0.4%	Rank history: #49 in FY2022, #21 in FY2023, #34 in FY2024 and #33 in FY2025; up 24 since FY2020.
64	Morphosis Architects Top agencies DOS (Department of State) GSA (General Services Administration)	$3,214,396	0.4%	Rank history: not on the FY2022 list, #19 in FY2023, not on the FY2024 list and #71 in FY2025; down 60 since FY2020.
65	AJC Architects, P.C. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$3,211,372	0.4%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 100 since FY2020.
66	Perkins Eastman Architects DPC Top agencies GSA (General Services Administration)	$3,202,173	0.4%	Rank history: not on the FY2022–FY2024 lists and #87 in FY2025; down 19 since FY2020.
67	Alesia Architecture PC Top agencies VA (Department of Veterans Affairs)	$3,085,146	0.3%	Rank history: #59 in FY2022, not on the FY2023 list, #40 in FY2024 and not on the FY2025 list; down 12 since FY2020.
68	Karn Charuhas Chapman & Twohey PC Top agencies DOS (Department of State)	$3,013,819	0.3%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 110 since FY2020.
69	Weiss / Manfredi Architects LLP Top agencies DOS (Department of State)	$3,001,577	0.3%	Rank history: not on the FY2022–FY2024 lists and #28 in FY2025; up 175 since FY2020.
70	Kierantimberlake LLC Top agencies DOS (Department of State)	$3,001,175	0.3%	Rank history: not on the FY2022 list, #4 in FY2023, not on the FY2024 list and #53 in FY2025; down 49 since FY2020.
71	RDC / John POE Architects, L.L.L.P. Top agencies VA (Department of Veterans Affairs)	$2,980,183	0.3%	Rank history: not on the FY2022–FY2025 lists; up 146 since FY2020.
72	Alpha Terra Engineering, Inc. Top agencies VA (Department of Veterans Affairs)	$2,924,352	0.3%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; up 57 since FY2020.
73	WSP Flad Top agencies HHS (Department of Health and Human Services)	$2,886,683	0.3%	Rank history: not on the FY2022–FY2025 lists; down 56 since FY2020.
74	MGA Partners LLC Top agencies GSA (General Services Administration) Navy (Department of the Navy) RRB (Railroad Retirement Board)	$2,883,603	0.3%	Rank history: not on the FY2022–FY2025 lists; up 235 since FY2020.
75	Fourfront Design Inc. Top agencies VA (Department of Veterans Affairs)	$2,863,114	0.3%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 36 since FY2020.
76	Jacobs Government Services Company Top agencies DOJ (Department of Justice)	$2,859,023	0.3%	Rank history: #67 in FY2022, #8 in FY2023, #2 in FY2024 and #1 in FY2025; down 65 since FY2020.
77	Smith Reynolds and Hills Inc 3 awardees, including Rs&H, Inc. Top agencies DECA (Defense Commissary Agency) NASA (National Aeronautics and Space Administration)	$2,770,982	0.3%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
78	Group 70 Gushiken A-E, LLP Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$2,750,428	0.3%	Rank history: not on the FY2022–FY2025 lists; up 69 since FY2020.
79	Katerra Inc. Through Lord, Aeck & Sargent, Inc. Top agencies DOI (Department of the Interior)	$2,734,299	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	1100 Architect PC Top agencies DOS (Department of State)	$2,728,671	0.3%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; up 190 since FY2020.
81	William Pevear Architects, Inc. Top agencies VA (Department of Veterans Affairs)	$2,687,579	0.3%	Rank history: not on the FY2022–FY2025 lists; up 122 since FY2020.
82	Hartman-Cox Architects LLP Top agencies National Gallery of Art	$2,683,487	0.3%	Rank history: not on the FY2022–FY2024 lists and #68 in FY2025; up 9 since FY2020.
83	AECOM Services, LLC Top agencies DOI (Department of the Interior) DOJ (Department of Justice) NASA (National Aeronautics and Space Administration)	$2,657,115	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	HOK Group, Inc. 3 awardees, including Hellmuth, Obata & Kassabaum, P.C. and Hellmuth, Obata & Kassabaum, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) GSA (General Services Administration)	$2,624,421	0.3%	Rank history: not on the FY2022 list, #2 in FY2023 and not on the FY2024–FY2025 lists; down 76 since FY2020.
85	Pond & Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) USAF (Department of the Air Force)	$2,603,939	0.3%	Rank history: #66 in FY2022, not on the FY2023 list, #26 in FY2024 and not on the FY2025 list; up 86 since FY2020.
86	MBF Architects, P.a. Top agencies Navy (Department of the Navy)	$2,577,732	0.3%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 51 since FY2020.
87	Machado and Silvetti Associates, Inc. Top agencies DOS (Department of State)	$2,576,666	0.3%	Rank history: #45 in FY2022, not on the FY2023 list, #75 in FY2024 and #46 in FY2025; new, not ranked in FY2020.
88	Mtfa Architecture, P.L.L.C. Top agencies GSA (General Services Administration) DOI (Department of the Interior) EOP (Executive Office of the President)	$2,570,229	0.3%	Rank history: #75 in FY2022, #56 in FY2023, #35 in FY2024 and #54 in FY2025; up 196 since FY2020.
89	The Dewberry Companies LC 3 awardees, including Dewberry Engineers Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army)	$2,547,715	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Studio MA, Inc. Top agencies DOS (Department of State)	$2,540,828	0.3%	Rank history: #7 in FY2022, #67 in FY2023, #87 in FY2024 and #21 in FY2025; down 6 since FY2020.
91	Burns & Mcdonnell, Inc. 3 awardees, including Burns & Mcdonnell Engineering Company, Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$2,475,419	0.3%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; down 16 since FY2020.
92	Robert A.m. Stern Architects, LLP Top agencies DOS (Department of State)	$2,462,813	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Michael Baker International, LLC 4 awardees Top agencies USAF (Department of the Air Force) GSA (General Services Administration) Navy (Department of the Navy)	$2,422,950	0.3%	Rank history: not on the FY2022 list, #30 in FY2023 and not on the FY2024–FY2025 lists; up 51 since FY2020.
94	Bailey Edward Design, Inc. Top agencies DOI (Department of the Interior) GSA (General Services Administration) DOL (Department of Labor)	$2,367,517	0.3%	Rank history: #81 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2020.
95	Cems Engineering Inc. Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$2,347,273	0.3%	Rank history: not on the FY2022–FY2025 lists; down 67 since FY2020.
96	KAL Architects, Inc. Top agencies VA (Department of Veterans Affairs) AOUSC (Administrative Office of the U.S. Courts) GSA (General Services Administration)	$2,335,742	0.3%	Rank history: #70 in FY2022, not on the FY2023 list, #42 in FY2024 and #84 in FY2025; new, not ranked in FY2020.
97	Health Facility Solutions Company Top agencies VA (Department of Veterans Affairs)	$2,328,167	0.3%	Rank history: not on the FY2022–FY2025 lists; up 96 since FY2020.
98	Davy Architecture, Inc. Top agencies VA (Department of Veterans Affairs)	$2,320,165	0.3%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
99	Tate Snyder Kimsey Architects, Ltd. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts)	$2,318,689	0.3%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
100	Concourse Federal Group LLC Top agencies VA (Department of Veterans Affairs)	$2,310,830	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 629 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 54131

Code	Net obligations	Largest contractor
541310 Architectural Services	$850,205,851	Jacobs / Ewingcole, A Joint Venture

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 $907 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. 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 NAICS 54131 contractors in FY2021?

1. Jacobs / Ewingcole, A Joint Venture ($32.8M), 2. AECOM ($25.9M), 3. Krueck & Sexton Architects, Ltd ($25.3M), 4. Smithgroup Companies, Inc. ($20.6M), 5. RLF and Sherlock Smith and Adams JV ($18.6M), 6. Lend Lease Corporation Ltd ($17.4M), 7. Page-Loring LLC ($17.3M), 8. Richard & Kennedy Architects, LLC ($17.1M), 9. Jacobs Engineering Group Inc. ($16.9M), 10. The Miller / Hull Partnership, LLP ($14M).

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