Top 100 Contractors in NAICS 236210: Industrial Building Construction, FY2023

Name: Top 100 Contractors in NAICS 236210: Industrial Building Construction, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 77% of FY2023 NAICS 236210 contract dollars

Contract obligations: $1,107,024,946 Net of deobligations, by contracts coded NAICS 236210
Contractors: 228 Parent companies with an obligation
Largest contractor: Bechtel Corp $309 million, 27.5% 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	Bechtel Corp Through Bechtel National, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$308,679,002	27.5%	Rank history: #4 in FY2021, #6 in FY2022, #2 in FY2024 and #1 in FY2025; up 5 since FY2022.
2	Parsons Corporation 2 awardees, including Parsons Government Services Inc. Top agencies Army (Department of the Army)	$164,163,263	14.6%	Rank history: #1 in FY2021, #7 in FY2022, #11 in FY2024 and #2 in FY2025; up 5 since FY2022.
3	Walsh Federal LLC Top agencies Navy (Department of the Navy)	$82,443,124	7.3%	Rank history: #47 in FY2021, #3 in FY2022, #5 in FY2024 and #8 in FY2025; unchanged since FY2022.
4	Seqirus USA Inc. Through Seqirus Inc. Top agencies HHS (Department of Health and Human Services)	$71,763,000	6.4%	Rank history: #2 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
5	M. a. Mortenson Companies Inc. Through M.a. Mortenson Company Top agencies USAF (Department of the Air Force)	$67,277,000	6.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
6	Northrop Grumman Corporation Through Northrop Grumman Systems Corp Top agencies Navy (Department of the Navy)	$65,276,000	5.8%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #4 in FY2025; new.
7	Healtheon, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$41,305,944	3.7%	Rank history: #11 in FY2021, #1 in FY2022, #9 in FY2024 and #10 in FY2025; down 6 since FY2022.
8	Veterans Range Solutions, LLC Top agencies DOJ (Department of Justice)	$27,244,248	2.4%	Rank history: #10 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
9	Chugach Pacific Solutions LLC Top agencies USAF (Department of the Air Force)	$20,455,732	1.8%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #65 in FY2025; new.
10	Brasfield & Gorrie LLC Top agencies Army (Department of the Army)	$16,812,544	1.5%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #97 in FY2025; new.
11	CCI Prime Contractors, LLC 3 awardees Top agencies Navy (Department of the Navy) DFAS (Defense Finance and Accounting Service)	$12,529,728	1.1%	Rank history: not on the FY2021 list, #49 in FY2022, #12 in FY2024 and #12 in FY2025; up 38 since FY2022.
12	Sedona- Nasco Joint Venture Top agencies Army (Department of the Army)	$11,945,142	1.1%	Rank history: not on the FY2021 list, #19 in FY2022, #8 in FY2024 and #14 in FY2025; up 7 since FY2022.
13	Civil Works Contracting LLC Top agencies NASA (National Aeronautics and Space Administration)	$10,784,385	1.0%	Rank history: #21 in FY2021, #30 in FY2022, #78 in FY2024 and #23 in FY2025; up 17 since FY2022.
14	Veyka Insaat Mimarlik Muhendislik Sanayi IC VE Dis Ticaret Anonim Sirketi Top agencies DOS (Department of State)	$8,921,127	0.8%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #68 in FY2025; new.
15	ACC Construction Co., Inc. Top agencies USSOCOM (United States Special Operations Command)	$8,355,949	0.7%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; up 58 since FY2022.
16	QA Engineering LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$7,964,413	0.7%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #96 in FY2025; new.
17	Sea PAC Engineering Inc Top agencies DOS (Department of State)	$7,731,131	0.7%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and #42 in FY2025; new.
18	Skcm / PBC JV LLC Top agencies Army (Department of the Army)	$7,583,164	0.7%	Rank history: #31 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
19	Southeast Cherokee Construction, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$7,079,790	0.6%	Rank history: #68 in FY2021, #37 in FY2022, #50 in FY2024 and #79 in FY2025; up 18 since FY2022.
20	Advon Corporation Top agencies NASA (National Aeronautics and Space Administration)	$6,671,464	0.6%	Rank history: #20 in FY2021, #12 in FY2022, #18 in FY2024 and #13 in FY2025; down 8 since FY2022.
21	The Riff Group, LLC Top agencies Treasury (Department of the Treasury)	$6,525,343	0.6%	Rank history: #42 in FY2021, #26 in FY2022, #35 in FY2024 and #66 in FY2025; up 5 since FY2022.
22	Snodgrass Contracting LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$6,432,681	0.6%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and #98 in FY2025; up 97 since FY2022.
23	Koman Sustainable Solutions, LLC Top agencies DHS (Department of Homeland Security)	$5,184,074	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	Brice Civil Constructors Inc. Top agencies Army (Department of the Army)	$5,040,579	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	The Whiting-Turner Contracting Company Top agencies Army (Department of the Army)	$4,473,985	0.4%	Rank history: #50 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 31 since FY2022.
26	OMJ Consultant LLC Top agencies Navy (Department of the Navy)	$4,400,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Carmen Roofing Services LLC Top agencies USAF (Department of the Air Force)	$4,117,820	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Warden Construction Corporation Top agencies USAF (Department of the Air Force)	$3,788,581	0.3%	Rank history: #95 in FY2021, #60 in FY2022, #72 in FY2024 and #26 in FY2025; up 32 since FY2022.
29	Kingstruction-Advon JV, LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,495,631	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Greenland Enterprises, Inc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$3,367,132	0.3%	Rank history: #6 in FY2021, not on the FY2022 list, #49 in FY2024 and #40 in FY2025; up 77 since FY2022.
31	Imec Group, LLC Top agencies DHS (Department of Homeland Security)	$3,298,581	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
32	Armitage SAI JV Top agencies Navy (Department of the Navy)	$3,212,137	0.3%	Rank history: not on the FY2021 list, #84 in FY2022 and not on the FY2024–FY2025 lists; up 52 since FY2022.
33	Unified Contractor, Inc. Top agencies DOT (Department of Transportation)	$3,021,127	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Powis Contracting Inc Top agencies USAF (Department of the Air Force)	$2,939,100	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Morello Construction LLC Top agencies DOI (Department of the Interior)	$2,788,679	0.2%	Rank history: not on the FY2021 list, #25 in FY2022, #80 in FY2024 and #81 in FY2025; down 10 since FY2022.
36	Trusted Construction & Facility Support, LLC Top agencies DOJ (Department of Justice)	$2,785,620	0.2%	Rank history: #76 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
37	Granite-Obayashi A Joint Venture Top agencies Navy (Department of the Navy)	$2,655,002	0.2%	Rank history: #5 in FY2021, #15 in FY2022, #71 in FY2024 and #67 in FY2025; down 22 since FY2022.
38	Brickl Bros., Inc. Top agencies DOI (Department of the Interior)	$2,608,435	0.2%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
39	SES Construction and Fuel Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,578,385	0.2%	Rank history: #13 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 67 since FY2022.
40	Maguire-Ohara Construction Inc. Top agencies USAF (Department of the Air Force)	$2,490,901	0.2%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2024 and #20 in FY2025; new.
41	Martinez Services, Inc. Top agencies Navy (Department of the Navy)	$2,440,501	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #43 in FY2025; new.
42	Lorenzon Construction, Inc. Top agencies Treasury (Department of the Treasury)	$2,195,891	0.2%	Rank history: #77 in FY2021, #43 in FY2022, #19 in FY2024 and #59 in FY2025; up 1 since FY2022.
43	Fluor Corporation Through Fluor Federal Solutions, LLC Top agencies Army (Department of the Army)	$2,171,917	0.2%	Rank history: #15 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
44	Goldbelt Operations Support Services LLC Top agencies Navy (Department of the Navy)	$2,102,572	0.2%	Rank history: not on the FY2021 list, #45 in FY2022, #52 in FY2024 and not on the FY2025 list; up 1 since FY2022.
45	Watterson Construction Co Top agencies Army (Department of the Army)	$2,093,469	0.2%	Rank history: not on the FY2021 list, #8 in FY2022 and not on the FY2024–FY2025 lists; down 37 since FY2022.
46	Pontchartrain Partners, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,977,874	0.2%	Rank history: #84 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
47	Corenic Construction Group LLC Top agencies Commerce (Department of Commerce)	$1,948,346	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	Raad Construction Group LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,859,997	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and #70 in FY2025; new.
49	Mastercraft Mechanical Contractors, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,814,422	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2024 list and #74 in FY2025; up 38 since FY2022.
50	K & K Industries Inc Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,680,611	0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #61 in FY2025; new.
51	Natives of Kodiak, Incorporated Through Koman Government Solutions LLC Top agencies Navy (Department of the Navy)	$1,612,501	0.1%	Rank history: #37 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 183 since FY2022.
52	Bristol Bay Native Corporation 2 awardees, including CCI Energy and Construction Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,584,064	0.1%	Rank history: #22 in FY2021, not on the FY2022 list, #62 in FY2024 and not on the FY2025 list; returned.
53	Precision Resources Inc. Through Precision Mechanical Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,533,010	0.1%	Rank history: #69 in FY2021, #62 in FY2022, #32 in FY2024 and not on the FY2025 list; up 9 since FY2022.
54	Methuen Construction Co Inc Top agencies Navy (Department of the Navy)	$1,529,609	0.1%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2024 and not on the FY2025 list; new.
55	Maven Construction & Environmental, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,514,985	0.1%	Rank history: #81 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
56	Diversified Construction of Oklahoma, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,483,772	0.1%	Rank history: #23 in FY2021, #17 in FY2022, #7 in FY2024 and #17 in FY2025; down 39 since FY2022.
57	Birmingham Industrial Construction, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,435,071	0.1%	Rank history: #12 in FY2021, #28 in FY2022, #13 in FY2024 and #7 in FY2025; down 29 since FY2022.
58	CCI Facility Support Services, LLC Top agencies Navy (Department of the Navy)	$1,418,984	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
59	Harrell Contracting Inc Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,322,976	0.1%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2024 and not on the FY2025 list; new.
60	Grunley Construction Co., Inc. Top agencies USDA (Department of Agriculture)	$1,270,212	0.1%	Rank history: #33 in FY2021, #68 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
61	Midlands Mechanical, Inc. Top agencies Treasury (Department of the Treasury)	$1,202,991	0.1%	Rank history: #72 in FY2021, #81 in FY2022, #91 in FY2024 and #39 in FY2025; up 20 since FY2022.
62	Sabree, Inc. Top agencies Navy (Department of the Navy)	$1,199,447	0.1%	Rank history: #48 in FY2021, not on the FY2022 list, not on the FY2024 list and #53 in FY2025; up 60 since FY2022.
63	Armitage Architecture Inc. Top agencies Navy (Department of the Navy)	$1,157,722	0.1%	Rank history: not on the FY2021 list, #83 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
64	IT Data Consulting L.L.C. Top agencies Treasury (Department of the Treasury)	$1,058,470	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 48 since FY2022.
65	Sauer Holdings Inc. Through Sauer Construction, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,052,932	0.1%	Rank history: #89 in FY2021, #34 in FY2022 and not on the FY2024–FY2025 lists; down 31 since FY2022.
66	ASH & White Construction Co Top agencies Treasury (Department of the Treasury)	$1,052,581	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 57 since FY2022.
67	Gana-A' Yoo, Limited Through Kaiyuh Services, LLC Top agencies GSA (General Services Administration) EPA (Environmental Protection Agency)	$1,027,562	0.1%	Rank history: not on the FY2021 list, #65 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
68	Four Tribes Construction Services, LLC 2 awardees Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services)	$986,752	0.1%	Rank history: #19 in FY2021, #55 in FY2022, #38 in FY2024 and #21 in FY2025; down 13 since FY2022.
69	Cody M Stevens Construction Inc. Top agencies Navy (Department of the Navy)	$935,655	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, #45 in FY2024 and #34 in FY2025; up 16 since FY2022.
70	Buildtec Corp Top agencies Navy (Department of the Navy)	$907,067	0.1%	Rank history: #57 in FY2021, #24 in FY2022, #48 in FY2024 and #95 in FY2025; down 46 since FY2022.
71	Henry General Contractors Inc Top agencies USAF (Department of the Air Force)	$879,592	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Aventus NV, Inc. Top agencies USDA (Department of Agriculture)	$848,587	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Belt Built Contracting, LLC Top agencies DOJ (Department of Justice)	$816,103	0.1%	Rank history: #17 in FY2021, not on the FY2022 list, #77 in FY2024 and not on the FY2025 list; up 29 since FY2022.
74	Baron Communications Incorporated Top agencies Navy (Department of the Navy)	$811,669	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	MIA General Contracting LLC Top agencies USAF (Department of the Air Force)	$803,756	0.1%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2024 and not on the FY2025 list; new.
76	Bering Straits Native Corporation 2 awardees, including Stampede Ventures, Inc. and Eagle Eye Electric LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$803,515	0.1%	Rank history: #38 in FY2021, #16 in FY2022, #54 in FY2024 and #93 in FY2025; down 60 since FY2022.
77	Puente Technology LLC Top agencies Army (Department of the Army)	$776,776	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Blue Construction Services LLC Top agencies Navy (Department of the Navy)	$774,225	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #56 in FY2024 and #77 in FY2025; up 19 since FY2022.
79	Kgjj Engineering Solutions, LLC Top agencies USAF (Department of the Air Force)	$734,452	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Qled Lighting LLC Top agencies USAF (Department of the Air Force)	$717,969	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	JM Construction Services Inc. Top agencies DHS (Department of Homeland Security)	$708,775	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and not on the FY2025 list; new.
82	Tigua Construction Services, Inc. Top agencies DHS (Department of Homeland Security)	$697,651	0.1%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
83	Professionals HIR LLC Top agencies Navy (Department of the Navy)	$658,964	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Sh Mechanical Inc. Top agencies DHS (Department of Homeland Security)	$640,359	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	Nve-Hhi JV Top agencies Army (Department of the Army)	$634,839	0.1%	Rank history: #28 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
86	United Construction Establishment Top agencies Army (Department of the Army)	$613,525	0.1%	Rank history: not on the FY2021 list, #96 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
87	JE Dunn Construction Group Inc. Through J.e. Dunn Construction Company Top agencies GSA (General Services Administration)	$610,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Quincon Inc. Top agencies DHS (Department of Homeland Security)	$583,760	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Pono Aina Management LLC Top agencies Army (Department of the Army)	$582,559	0.1%	Rank history: not on the FY2021 list, #27 in FY2022, #100 in FY2024 and not on the FY2025 list; down 62 since FY2022.
90	Richland Industries LLC Top agencies VA (Department of Veterans Affairs)	$569,429	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Hensel Phelps Construction Co 2 awardees Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$560,055	<0.1%	Rank history: #3 in FY2021, #14 in FY2022 and not on the FY2024–FY2025 lists; down 77 since FY2022.
92	Best Value Management, LLC Top agencies DHS (Department of Homeland Security)	$550,936	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Lacusong Leilani Top agencies DOT (Department of Transportation)	$548,187	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	CCI Utility and Construction Services, LLC Top agencies Navy (Department of the Navy)	$524,375	<0.1%	Rank history: #29 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 31 since FY2022.
95	Serena Construction LLC Top agencies Navy (Department of the Navy)	$510,970	<0.1%	Rank history: not on the FY2021 list, #39 in FY2022, #67 in FY2024 and #94 in FY2025; down 56 since FY2022.
96	Platinum Logistics Solutions LLC Top agencies GSA (General Services Administration)	$495,352	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Wesco Construction Top agencies Navy (Department of the Navy)	$491,137	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Hensel Phelps - Shimizu JV Through Hensel Phelps Construction Co. Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$485,203	<0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2024 and not on the FY2025 list; new.
99	FDLC Construction Management PA Top agencies USDA (Department of Agriculture)	$443,660	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	One Way Development, Inc. Top agencies Navy (Department of the Navy)	$441,145	<0.1%	Rank history: #74 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 29 since FY2022.

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100 of 228 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 $1.12 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.

Quick answers

Who were the top 10 NAICS 236210 contractors in FY2023?

1. Bechtel Corp ($309M), 2. Parsons Corporation ($164M), 3. Walsh Federal LLC ($82.4M), 4. Seqirus USA Inc. ($71.8M), 5. M. a. Mortenson Companies Inc. ($67.3M), 6. Northrop Grumman Corporation ($65.3M), 7. Healtheon, Inc. ($41.3M), 8. Veterans Range Solutions, LLC ($27.2M), 9. Chugach Pacific Solutions LLC ($20.5M), 10. Brasfield & Gorrie LLC ($16.8M).

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