Top 100 Contractors in NAICS 2381: Foundation, Structure, and Building Exterior Contractors, FY2023

Name: Top 100 Contractors in NAICS 2381: Foundation, Structure, and Building Exterior Contractors, FY2023
Creator: GovTribe

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

The top 10 won 27% of FY2023 NAICS 2381 contract dollars

Contract obligations: $743,336,150 Net of deobligations, by contracts coded NAICS 2381 or a code under it
Contractors: 795 Parent companies with an obligation
Largest contractor: S & M & Associates, Inc. $44.5 million, 5.6% 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	S & M & Associates, Inc. Top agencies Army (Department of the Army)	$44,478,152	5.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
2	Thomco Enterprises Incorporated Top agencies Army (Department of the Army)	$28,091,903	3.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
3	Structural Group, Inc. Through Pullman Sst, Inc. Top agencies DOI (Department of the Interior)	$25,846,615	3.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
4	Legacy Joint Venture Group, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$20,299,333	2.6%	Rank history: #44 in FY2021, #7 in FY2022, #3 in FY2024 and #57 in FY2025; up 3 since FY2022.
5	JP Donovan Construction Inc. Top agencies NASA (National Aeronautics and Space Administration)	$19,360,551	2.5%	Rank history: #8 in FY2021, #1 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
6	Cypress-Sbs JV LLC Top agencies Army (Department of the Army)	$16,911,296	2.1%	Rank history: #4 in FY2021, #8 in FY2022, #11 in FY2024 and #15 in FY2025; up 2 since FY2022.
7	R&I Construction, Inc. Top agencies Army (Department of the Army)	$16,077,404	2.0%	Rank history: #11 in FY2021, #15 in FY2022, #40 in FY2024 and #27 in FY2025; up 8 since FY2022.
8	Chatmon-Vjr, JV, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$16,009,970	2.0%	Rank history: #10 in FY2021, #19 in FY2022, #82 in FY2024 and #26 in FY2025; up 11 since FY2022.
9	Inland Construction and Engineering Inc. Top agencies DOJ (Department of Justice)	$14,973,379	1.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
10	TST Tactical Defense Solutions, Inc. Top agencies Navy (Department of the Navy)	$13,826,802	1.8%	Rank history: #60 in FY2021, #91 in FY2022 and not on the FY2024–FY2025 lists; up 81 since FY2022.
11	Industria Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$13,766,941	1.7%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2024 and #12 in FY2025; up 103 since FY2022.
12	Rycars Construction Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$12,294,707	1.6%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #85 in FY2025; new.
13	Brazos Roofing International of South Dakota, Inc. Top agencies Army (Department of the Army)	$11,449,740	1.5%	Rank history: #31 in FY2021, #85 in FY2022, not on the FY2024 list and #5 in FY2025; up 72 since FY2022.
14	Pacific TECH Construction Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$11,256,998	1.4%	Rank history: #6 in FY2021, #2 in FY2022, #1 in FY2024 and #2 in FY2025; down 12 since FY2022.
15	Ar6-Cram Roofing JV LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$10,678,252	1.4%	Rank history: #15 in FY2021, #4 in FY2022, #6 in FY2024 and not on the FY2025 list; down 11 since FY2022.
16	CYE Enterprises Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$10,423,891	1.3%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #38 in FY2025; up 152 since FY2022.
17	Southwest Construction & Property Management Top agencies Navy (Department of the Navy) DOI (Department of the Interior)	$10,043,750	1.3%	Rank history: #20 in FY2021, #16 in FY2022, #32 in FY2024 and #56 in FY2025; down 1 since FY2022.
18	Doliveira Systems LLC Top agencies Army (Department of the Army) Commerce (Department of Commerce) DISA (Defense Information Systems Agency)	$9,793,055	1.2%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and not on the FY2025 list; up 211 since FY2022.
19	J Davis Construction Management Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$9,732,997	1.2%	Rank history: #25 in FY2021, #25 in FY2022, #29 in FY2024 and #16 in FY2025; up 6 since FY2022.
20	Roofing Resources Inc. Top agencies USAF (Department of the Air Force) DOS (Department of State) GSA (General Services Administration)	$8,473,696	1.1%	Rank history: #49 in FY2021, #68 in FY2022, #8 in FY2024 and #8 in FY2025; up 48 since FY2022.
21	"A-Vet Roofing & Construction, L.l.c." Top agencies USAF (Department of the Air Force)	$8,323,954	1.1%	Rank history: not on the FY2021 list, #20 in FY2022, #78 in FY2024 and #32 in FY2025; down 1 since FY2022.
22	Bishop, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,046,913	1.0%	Rank history: #16 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; up 21 since FY2022.
23	Good-Men Roofing & Construction Inc. Top agencies USAF (Department of the Air Force)	$7,992,930	1.0%	Rank history: #63 in FY2021, #28 in FY2022, #21 in FY2024 and #50 in FY2025; up 5 since FY2022.
24	Wayss & Freytag Ingenieurbau AG Top agencies DOS (Department of State)	$7,930,616	1.0%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2024–FY2025 lists; up 45 since FY2022.
25	Pacificfederal-Pacifictech JV 1 LLLP Top agencies Army (Department of the Army)	$7,643,489	1.0%	Rank history: #13 in FY2021, not on the FY2022 list, #17 in FY2024 and #49 in FY2025; up 396 since FY2022.
26	Trumble Construction LLC Top agencies Navy (Department of the Navy)	$7,522,576	1.0%	Rank history: #37 in FY2021, #64 in FY2022, #12 in FY2024 and #39 in FY2025; up 38 since FY2022.
27	Lupini Construction, LLC Top agencies Army (Department of the Army)	$7,061,032	0.9%	Rank history: #43 in FY2021, #38 in FY2022, #19 in FY2024 and #10 in FY2025; up 11 since FY2022.
28	Westover Roofing, LLC Top agencies Army (Department of the Army)	$7,036,744	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
29	Consolidated Enterprises Inc. Top agencies USAF (Department of the Air Force)	$6,494,286	0.8%	Rank history: #28 in FY2021, #17 in FY2022, #9 in FY2024 and #41 in FY2025; down 12 since FY2022.
30	Armitage Architecture Inc. Top agencies Army (Department of the Army)	$6,138,795	0.8%	Rank history: #45 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 189 since FY2022.
31	2H&V Construction Services, LLC Top agencies VA (Department of Veterans Affairs)	$5,965,655	0.8%	Rank history: not on the FY2021 list, #24 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
32	Maloof Weathertight Solutions, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$5,826,386	0.7%	Rank history: #53 in FY2021, #9 in FY2022, #31 in FY2024 and #21 in FY2025; down 23 since FY2022.
33	East Coast Technologies, LLC Top agencies DOS (Department of State)	$5,816,142	0.7%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #63 in FY2025; new.
34	C. Ortiz, Corp Top agencies USAF (Department of the Air Force)	$5,751,697	0.7%	Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2024 list and #79 in FY2025; down 11 since FY2022.
35	Core Consolidated LLC Top agencies DOT (Department of Transportation) Army (Department of the Army)	$5,699,873	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 193 since FY2022.
36	Warrior Construction Services Inc. Top agencies Army (Department of the Army)	$5,509,717	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Foret Contracting Group LLC Top agencies DOT (Department of Transportation)	$4,949,852	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	S3 Contracting LLC Top agencies Army (Department of the Army) GSA (General Services Administration)	$4,898,285	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Benecorp Inc. Top agencies Navy (Department of the Navy)	$4,738,537	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	KDA Contractors LLC Top agencies DOJ (Department of Justice)	$4,733,000	0.6%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and not on the FY2025 list; new.
41	8-Koi Inc. Top agencies Navy (Department of the Navy)	$4,475,087	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 120 since FY2022.
42	Best Value Management, LLC Top agencies Navy (Department of the Navy) DOL (Department of Labor)	$4,432,329	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 210 since FY2022.
43	Napc & Hscc JV LLC Top agencies VA (Department of Veterans Affairs)	$4,428,361	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Interior Plus, Inc. Top agencies USAF (Department of the Air Force)	$3,903,352	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	GC Works Inc. Top agencies DOL (Department of Labor) Treasury (Department of the Treasury) IBWC (International Boundary and Water Commission U.S.-Mexico)	$3,838,914	0.5%	Rank history: #36 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 402 since FY2022.
46	Heritage Construction LLC Top agencies Navy (Department of the Navy)	$3,544,785	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	DA Nolt Inc. Top agencies USAF (Department of the Air Force)	$3,542,025	0.4%	Rank history: #41 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 60 since FY2022.
48	Ark Construction Management LLC Top agencies Navy (Department of the Navy)	$3,537,042	0.4%	Rank history: #48 in FY2021, #30 in FY2022, #93 in FY2024 and #36 in FY2025; down 18 since FY2022.
49	Addon Services LLC Top agencies GSA (General Services Administration)	$3,396,046	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 88 since FY2022.
50	Supera Engenharia LTDA Top agencies DOS (Department of State)	$3,358,095	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	Bluefin, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$3,312,527	0.4%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #55 in FY2025; up 67 since FY2022.
52	Tabcon Inc. Top agencies Army (Department of the Army) DOS (Department of State)	$3,249,465	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 72 since FY2022.
53	Koman Sustainable Solutions, LLC Top agencies DHS (Department of Homeland Security)	$3,227,878	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
54	Knight Eagle Contracting Group, Inc. Top agencies GSA (General Services Administration) DOT (Department of Transportation) USDA (Department of Agriculture)	$3,156,223	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 88 since FY2022.
55	Heenan Construction, LLC Top agencies Army (Department of the Army)	$3,011,338	0.4%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and #61 in FY2025; new.
56	RHI LLC Top agencies Army (Department of the Army)	$2,984,053	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 186 since FY2022.
57	Henry General Contractors Inc Top agencies Army (Department of the Army) DOI (Department of the Interior) USAF (Department of the Air Force)	$2,963,355	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 149 since FY2022.
58	CM Construction Services, Inc. Top agencies Navy (Department of the Navy)	$2,947,295	0.4%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2024 and not on the FY2025 list; new.
59	Arwi JV LLC Top agencies Navy (Department of the Navy)	$2,899,163	0.4%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
60	Sustainable Building Solutions, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$2,895,248	0.4%	Rank history: not on the FY2021 list, #58 in FY2022, not on the FY2024 list and #3 in FY2025; down 2 since FY2022.
61	Swan Contracting LLC Top agencies USAF (Department of the Air Force)	$2,738,965	0.3%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2024 and not on the FY2025 list; new.
62	Teehee Bishop A Joint Venture Top agencies Navy (Department of the Navy)	$2,724,320	0.3%	Rank history: #61 in FY2021, not on the FY2022 list, #75 in FY2024 and #46 in FY2025; up 97 since FY2022.
63	Ritz Construction Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,659,048	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 200 since FY2022.
64	Penns Contracting Inc. Top agencies DOJ (Department of Justice)	$2,659,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	Dmyles Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$2,639,910	0.3%	Rank history: not on the FY2021 list, #95 in FY2022, #53 in FY2024 and #13 in FY2025; up 30 since FY2022.
66	SKE Support Services GMBH Top agencies DOS (Department of State)	$2,476,120	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Reasor Building Group LLC Top agencies Navy (Department of the Navy)	$2,329,734	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Rothwell Construction LLC Top agencies VA (Department of Veterans Affairs)	$2,300,381	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 336 since FY2022.
69	Doliveira DJB JV LLC Top agencies USAF (Department of the Air Force)	$2,275,327	0.3%	Rank history: not on the FY2021 list, #60 in FY2022, not on the FY2024 list and #45 in FY2025; down 9 since FY2022.
70	Dawson Enterprises, Inc. Top agencies Navy (Department of the Navy)	$2,275,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Interior Alaska Roofing Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,259,729	0.3%	Rank history: #73 in FY2021, #78 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
72	LJV Development LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$2,257,222	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Oso, Inc. Top agencies DOJ (Department of Justice)	$2,238,970	0.3%	Rank history: #83 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
74	Welch Construction Inc. Top agencies VA (Department of Veterans Affairs)	$2,235,811	0.3%	Rank history: not on the FY2021 list, #52 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
75	Federal Constructors, Inc. Top agencies DOJ (Department of Justice)	$2,230,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Ahtna Infrastructure & Technologies LLC Top agencies DOT (Department of Transportation)	$2,214,407	0.3%	Rank history: #84 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
77	US Diversified Contracting Services Inc. Top agencies VA (Department of Veterans Affairs)	$2,211,250	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 26 since FY2022.
78	Okinawa Sobi Kogyo, K.K. Top agencies Navy (Department of the Navy) DMA (Defense Media Activity)	$2,182,471	0.3%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and not on the FY2025 list; new.
79	ENH LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$2,176,766	0.3%	Rank history: #72 in FY2021, #72 in FY2022, #23 in FY2024 and not on the FY2025 list; down 7 since FY2022.
80	JVR LLC Top agencies USAF (Department of the Air Force)	$2,131,018	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	DJB Contracting Inc. Top agencies Smithsonian (Smithsonian Institution)	$2,124,404	0.3%	Rank history: not on the FY2021 list, #77 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
82	Aaecon General Contracting LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture) USAF (Department of the Air Force)	$2,100,272	0.3%	Rank history: #18 in FY2021, #18 in FY2022, #5 in FY2024 and not on the FY2025 list; down 64 since FY2022.
83	Constructure Inc. Top agencies GSA (General Services Administration)	$2,063,152	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #37 in FY2025; new.
84	Knight Const. & Supply Inc Top agencies Army (Department of the Army) DOI (Department of the Interior)	$2,041,930	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	Paradigm Mechanical Corp. Top agencies Navy (Department of the Navy)	$2,020,720	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	DFW Cad Services LLC Top agencies DOJ (Department of Justice)	$1,892,283	0.2%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and not on the FY2025 list; new.
87	GM Builders Inc. Top agencies Army (Department of the Army)	$1,878,488	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Fasone Construction, Inc. Top agencies DOI (Department of the Interior)	$1,838,445	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Amerifield JV LLC Top agencies Army (Department of the Army)	$1,787,097	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Mcgoldrick Construction Services Corporation Top agencies VA (Department of Veterans Affairs)	$1,697,260	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Global Construct Group Inc. Top agencies Navy (Department of the Navy)	$1,679,958	0.2%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; down 43 since FY2022.
92	Oneill Contractors Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$1,657,460	0.2%	Rank history: #82 in FY2021, not on the FY2022 list, #91 in FY2024 and not on the FY2025 list; up 47 since FY2022.
93	A & P Remodeling Co Inc. Top agencies DOT (Department of Transportation)	$1,652,650	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 256 since FY2022.
94	Leskca Incorporated Top agencies DOE (Department of Energy)	$1,609,621	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Concierge Business Solutions Inc Top agencies VA (Department of Veterans Affairs)	$1,605,886	0.2%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and not on the FY2025 list; new.
96	Cherokee Nation Through Cherokee Nation Development Group, L.L.C. Top agencies USAF (Department of the Air Force)	$1,599,839	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Advent Spees JV LLC Top agencies VA (Department of Veterans Affairs)	$1,593,869	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Mission Contracting Inc. Through Island Contracting, Inc. Top agencies Navy (Department of the Navy)	$1,589,104	0.2%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; down 53 since FY2022.
99	Milicon Inc Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$1,572,823	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Triune Solutions, LLC Top agencies Army (Department of the Army)	$1,558,593	0.2%	Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.

Show 75 more

100 of 795 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 2381

Code	Net obligations	Largest contractor
23816 Roofing Contractors	$573,687,272	S & M & Associates, Inc.
23819 Other Foundation, Structure, and Building Exterior Contractors	$36,586,023	2H&V Construction Services, LLC
23812 Structural Steel and Precast Concrete Contractors	$36,115,601	JP Donovan Construction Inc.
23814 Masonry Contractors	$33,535,083	Industria Inc.
23815 Glass and Glazing Contractors	$30,407,704	Structural Group, Inc.
23811 Poured Concrete Foundation and Structure Contractors	$28,249,190	Armitage Architecture Inc.
23817 Siding Contractors	$4,560,432	Ritz Construction Inc.

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 $788 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 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 2381 contractors in FY2023?

1. S & M & Associates, Inc. ($44.5M), 2. Thomco Enterprises Incorporated ($28.1M), 3. Structural Group, Inc. ($25.8M), 4. Legacy Joint Venture Group, LLC ($20.3M), 5. JP Donovan Construction Inc. ($19.4M), 6. Cypress-Sbs JV LLC ($16.9M), 7. R&I Construction, Inc. ($16.1M), 8. Chatmon-Vjr, JV, LLC ($16M), 9. Inland Construction and Engineering Inc. ($15M), 10. TST Tactical Defense Solutions, Inc. ($13.8M).

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