Top 100 Contractors in NAICS 2381: Foundation, Structure, and Building Exterior Contractors, FY2021

Name: Top 100 Contractors in NAICS 2381: Foundation, Structure, and Building Exterior Contractors, FY2021
Creator: GovTribe

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

The top 10 won 22% of FY2021 NAICS 2381 contract dollars

Contract obligations: $580,068,894 Net of deobligations, by contracts coded NAICS 2381 or a code under it
Contractors: 921 Parent companies with an obligation
Largest contractor: Venegas Construction Corp $28.2 million, 4.6% 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	Venegas Construction Corp Top agencies DHS (Department of Homeland Security)	$28,246,779	4.6%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
2	Barlovento LLC Top agencies DHS (Department of Homeland Security)	$19,910,942	3.3%	Rank history: #10 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
3	Swan Contracting LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$19,307,450	3.2%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; up 353 since FY2020.
4	Cypress-Sbs JV LLC Top agencies Army (Department of the Army)	$14,351,866	2.4%	Rank history: #8 in FY2022, #6 in FY2023, #11 in FY2024 and #15 in FY2025; up 6 since FY2020.
5	Island Contracting, Inc. Top agencies Navy (Department of the Navy)	$9,797,613	1.6%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
6	Pacific TECH Construction Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$9,647,407	1.6%	Rank history: #2 in FY2022, #14 in FY2023, #1 in FY2024 and #2 in FY2025; up 29 since FY2020.
7	MGC Roofing & Construction, Inc. Top agencies Navy (Department of the Navy)	$9,151,776	1.5%	Rank history: #12 in FY2022, not on the FY2023–FY2024 lists and #81 in FY2025; up 21 since FY2020.
8	JP Donovan Construction Inc. Top agencies NASA (National Aeronautics and Space Administration)	$9,057,820	1.5%	Rank history: #1 in FY2022, #5 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	Hughes Construction Services LLC Top agencies Army (Department of the Army)	$8,587,056	1.4%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
10	Chatmon-Vjr, JV, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,197,268	1.3%	Rank history: #19 in FY2022, #8 in FY2023, #82 in FY2024 and #26 in FY2025; up 190 since FY2020.
11	R&I Construction, Inc. Top agencies Army (Department of the Army)	$7,221,024	1.2%	Rank history: #15 in FY2022, #7 in FY2023, #40 in FY2024 and #27 in FY2025; up 15 since FY2020.
12	Service Disabled Contracting Group, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$6,848,042	1.1%	Rank history: not on the FY2022–FY2025 lists; up 30 since FY2020.
13	Pacificfederal-Pacifictech JV 1 LLLP Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$6,753,263	1.1%	Rank history: not on the FY2022 list, #25 in FY2023, #17 in FY2024 and #49 in FY2025; down 9 since FY2020.
14	Cora Jane Contractors LLC Top agencies DOJ (Department of Justice)	$6,588,000	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Ar6-Cram Roofing JV LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$6,196,038	1.0%	Rank history: #4 in FY2022, #15 in FY2023, #6 in FY2024 and not on the FY2025 list; up 10 since FY2020.
16	Bishop Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,926,554	1.0%	Rank history: #43 in FY2022, #22 in FY2023 and not on the FY2024–FY2025 lists; up 100 since FY2020.
17	Enfield Enterprises LLC Top agencies Navy (Department of the Navy) DECA (Defense Commissary Agency)	$5,864,817	1.0%	Rank history: #49 in FY2022, not on the FY2023 list, #26 in FY2024 and not on the FY2025 list; up 17 since FY2020.
18	Aaecon General Contracting LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$5,861,479	1.0%	Rank history: #18 in FY2022, #82 in FY2023, #5 in FY2024 and not on the FY2025 list; up 79 since FY2020.
19	CYE Enterprises Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$5,554,205	0.9%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; down 13 since FY2020.
20	Southwest Construction & Property Management Top agencies Navy (Department of the Navy) DOI (Department of the Interior)	$5,271,219	0.9%	Rank history: #16 in FY2022, #17 in FY2023, #32 in FY2024 and #56 in FY2025; up 40 since FY2020.
21	Valiant Group LLC Top agencies VA (Department of Veterans Affairs)	$5,245,000	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	All Phase Services, Inc. Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation) Army (Department of the Army)	$5,181,227	0.9%	Rank history: #26 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
23	Ames Construction, Inc. Top agencies DOI (Department of the Interior)	$4,861,755	0.8%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
24	Veterans Contracting Group, Inc. Top agencies VA (Department of Veterans Affairs)	$4,818,715	0.8%	Rank history: not on the FY2022–FY2023 lists, #20 in FY2024 and #35 in FY2025; new, not ranked in FY2020.
25	J Davis Construction Management Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$4,793,512	0.8%	Rank history: #25 in FY2022, #19 in FY2023, #29 in FY2024 and #16 in FY2025; down 4 since FY2020.
26	Dari Concepts LLC Top agencies Army (Department of the Army)	$4,735,521	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Enshaat Al Sayer Gen Tradg & Cont Co WLL Top agencies Army (Department of the Army)	$4,622,076	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	Consolidated Enterprises Inc. Top agencies USAF (Department of the Air Force)	$4,478,719	0.7%	Rank history: #17 in FY2022, #29 in FY2023, #9 in FY2024 and #41 in FY2025; down 16 since FY2020.
29	Tabcon, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$4,273,908	0.7%	Rank history: #5 in FY2022, not on the FY2023 list, #2 in FY2024 and #78 in FY2025; down 12 since FY2020.
30	Conti Enterprises Inc. Through Conti Federal Services, Inc. Top agencies Army (Department of the Army)	$4,223,252	0.7%	Rank history: not on the FY2022–FY2025 lists; up 46 since FY2020.
31	Brazos Roofing International of South Dakota, Inc. Top agencies Army (Department of the Army)	$4,213,184	0.7%	Rank history: #85 in FY2022, #13 in FY2023, not on the FY2024 list and #5 in FY2025; down 22 since FY2020.
32	Oke-Thomas+Associates, Inc. Top agencies DOJ (Department of Justice)	$4,137,997	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Nadiad Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$4,054,046	0.7%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
34	Four Tribes Enterprises, LLC Top agencies USDA (Department of Agriculture) Army (Department of the Army) USAF (Department of the Air Force)	$4,034,371	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	P & L General Contractors, Inc. Top agencies Navy (Department of the Navy)	$3,941,552	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	GC Works Inc. Top agencies Treasury (Department of the Treasury)	$3,900,007	0.6%	Rank history: not on the FY2022 list, #45 in FY2023 and not on the FY2024–FY2025 lists; up 67 since FY2020.
37	Trumble Construction LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration)	$3,873,841	0.6%	Rank history: #64 in FY2022, #26 in FY2023, #12 in FY2024 and #39 in FY2025; up 1 since FY2020.
38	Sjv2 Top agencies Navy (Department of the Navy)	$3,696,076	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
39	Noacon Inc. Top agencies HHS (Department of Health and Human Services)	$3,682,938	0.6%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
40	Carmen Roofing Services, LLC Top agencies USAF (Department of the Air Force)	$3,635,537	0.6%	Rank history: not on the FY2022–FY2024 lists and #25 in FY2025; new, not ranked in FY2020.
41	DA Nolt Inc. Top agencies USAF (Department of the Air Force)	$3,557,218	0.6%	Rank history: not on the FY2022 list, #47 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
42	Structural Group Inc. Through Structural Preservation Systems, LLC Top agencies Army (Department of the Army)	$3,462,129	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Lupini Construction, LLC Top agencies Army (Department of the Army)	$3,433,122	0.6%	Rank history: #38 in FY2022, #27 in FY2023, #19 in FY2024 and #10 in FY2025; up 8 since FY2020.
44	Legacy Joint Venture Group, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$3,344,819	0.6%	Rank history: #7 in FY2022, #4 in FY2023, #3 in FY2024 and #57 in FY2025; new, not ranked in FY2020.
45	Armitage Architecture Inc. Top agencies Army (Department of the Army)	$3,337,786	0.5%	Rank history: not on the FY2022 list, #30 in FY2023 and not on the FY2024–FY2025 lists; up 54 since FY2020.
46	Heffler Contracting Group Top agencies Navy (Department of the Navy)	$3,331,183	0.5%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
47	Okiply Shoji Co, Ltd. Top agencies Navy (Department of the Navy)	$3,278,280	0.5%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 168 since FY2020.
48	Ark Construction Management LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration) DLA (Defense Logistics Agency)	$3,189,147	0.5%	Rank history: #30 in FY2022, #48 in FY2023, #93 in FY2024 and #36 in FY2025; up 14 since FY2020.
49	Roofing Resources Inc. Top agencies DECA (Defense Commissary Agency) DOJ (Department of Justice) GSA (General Services Administration)	$3,146,528	0.5%	Rank history: #68 in FY2022, #20 in FY2023, #8 in FY2024 and #8 in FY2025; down 33 since FY2020.
50	Rycars Construction, LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$3,096,713	0.5%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; up 128 since FY2020.
51	YOY Inc. Top agencies GSA (General Services Administration) DOI (Department of the Interior)	$3,067,385	0.5%	Rank history: not on the FY2022–FY2025 lists; up 173 since FY2020.
52	Kikiktagruk Inupiat Corp 4 awardees, including Midnight Sun Aus, LLC and Alaska Universal Services LLC Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DOI (Department of the Interior)	$3,031,292	0.5%	Rank history: #29 in FY2022, not on the FY2023 list, #89 in FY2024 and #62 in FY2025; up 116 since FY2020.
53	Maloof Weathertight Solutions, LLC Top agencies Army (Department of the Army)	$3,009,080	0.5%	Rank history: #9 in FY2022, #32 in FY2023, #31 in FY2024 and #21 in FY2025; up 142 since FY2020.
54	Arrow DJB JV II LLC Top agencies Navy (Department of the Navy)	$2,999,293	0.5%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
55	Carmen Express JV LLC Top agencies USAF (Department of the Air Force)	$2,996,142	0.5%	Rank history: #3 in FY2022, not on the FY2023 list, #61 in FY2024 and #11 in FY2025; new, not ranked in FY2020.
56	Roofing and Sustainable Systems, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,909,874	0.5%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; down 33 since FY2020.
57	Borealis Enterprises LLC Top agencies DHS (Department of Homeland Security)	$2,882,948	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Maven Construction & Environmental, LLC Top agencies Navy (Department of the Navy) DOL (Department of Labor) Army (Department of the Army)	$2,854,544	0.5%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
59	Firewatch Contracting of Florida LLC Top agencies VA (Department of Veterans Affairs)	$2,835,537	0.5%	Rank history: not on the FY2022–FY2023 lists, #30 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
60	TST Tactical Defense Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$2,800,000	0.5%	Rank history: #91 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
61	Teehee Bishop A Joint Venture Top agencies Navy (Department of the Navy)	$2,711,800	0.4%	Rank history: not on the FY2022 list, #62 in FY2023, #75 in FY2024 and #46 in FY2025; up 66 since FY2020.
62	Kailas, Corp. Top agencies DOI (Department of the Interior)	$2,698,450	0.4%	Rank history: not on the FY2022–FY2025 lists; down 30 since FY2020.
63	Good-Men Roofing & Construction Inc. Top agencies USAF (Department of the Air Force)	$2,692,065	0.4%	Rank history: #28 in FY2022, #23 in FY2023, #21 in FY2024 and #50 in FY2025; up 33 since FY2020.
64	AR6 Construction & Engineering, LLC Top agencies USAF (Department of the Air Force)	$2,668,710	0.4%	Rank history: not on the FY2022–FY2025 lists; up 92 since FY2020.
65	Iron Sword Enterprises, LLC Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$2,662,742	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	S3 Contracting LLC Top agencies Army (Department of the Army)	$2,594,773	0.4%	Rank history: #71 in FY2022, not on the FY2023 list, #43 in FY2024 and #70 in FY2025; up 45 since FY2020.
67	Justin J. Reeves, L.l.c Top agencies Army (Department of the Army)	$2,531,810	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Call Associates, Inc. Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$2,471,712	0.4%	Rank history: not on the FY2022–FY2025 lists; up 124 since FY2020.
69	CJW Contractors, Inc. Top agencies Navy (Department of the Navy) DISA (Defense Information Systems Agency) DLA (Defense Logistics Agency)	$2,438,790	0.4%	Rank history: not on the FY2022–FY2025 lists; down 51 since FY2020.
70	Carolina Group Properties LLC Top agencies Army (Department of the Army)	$2,430,797	0.4%	Rank history: not on the FY2022–FY2025 lists; up 320 since FY2020.
71	JB Contracting, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$2,383,302	0.4%	Rank history: not on the FY2022–FY2025 lists; up 303 since FY2020.
72	ENH LLC Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce)	$2,338,317	0.4%	Rank history: #72 in FY2022, #79 in FY2023, #23 in FY2024 and not on the FY2025 list; up 100 since FY2020.
73	Interior Alaska Roofing Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$2,332,395	0.4%	Rank history: #78 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; down 58 since FY2020.
74	NWF Contractors Inc. Top agencies USAF (Department of the Air Force)	$2,266,215	0.4%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
75	G. Adams Restoration LLC Top agencies GSA (General Services Administration)	$2,253,329	0.4%	Rank history: not on the FY2022–FY2025 lists; up 56 since FY2020.
76	Gustav Keoni Top agencies DOJ (Department of Justice) DOI (Department of the Interior)	$2,227,228	0.4%	Rank history: not on the FY2022–FY2025 lists; down 47 since FY2020.
77	Al-Jafar Contracting Company Top agencies Army (Department of the Army)	$2,219,373	0.4%	Rank history: not on the FY2022–FY2023 lists, #90 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
78	Indus General Inc. Top agencies Navy (Department of the Navy)	$2,161,304	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Acty Co., Ltd. Top agencies Navy (Department of the Navy)	$2,130,716	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	MX Construction, Inc. Top agencies DOI (Department of the Interior)	$2,124,918	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	California Constructors Top agencies Navy (Department of the Navy)	$2,105,321	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Oneill Contractors Inc. Top agencies GSA (General Services Administration) Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,055,174	0.3%	Rank history: not on the FY2022 list, #92 in FY2023, #91 in FY2024 and not on the FY2025 list; down 17 since FY2020.
83	Oso, Inc. Top agencies DOJ (Department of Justice)	$2,049,521	0.3%	Rank history: not on the FY2022 list, #73 in FY2023 and not on the FY2024–FY2025 lists; down 34 since FY2020.
84	Ahtna Infrastructure & Technologies LLC Top agencies DOT (Department of Transportation) Commerce (Department of Commerce)	$2,032,652	0.3%	Rank history: #61 in FY2022, #76 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
85	Telles Construction Consultants LLC Top agencies Army (Department of the Army)	$2,009,525	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Barber Klein Contractors, LLC Top agencies Navy (Department of the Navy)	$1,995,553	0.3%	Rank history: not on the FY2022–FY2025 lists; up 49 since FY2020.
87	Prairie Band Construction, Inc. Top agencies USAF (Department of the Air Force)	$1,960,929	0.3%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
88	Southwest General Construction, Inc. Top agencies Army (Department of the Army)	$1,906,244	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	CMR Construction & Roofing LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$1,780,203	0.3%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
90	Forus Contracting, Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$1,765,444	0.3%	Rank history: #47 in FY2022, not on the FY2023 list, #24 in FY2024 and #72 in FY2025; down 4 since FY2020.
91	T1 Construction, LLC Top agencies Army (Department of the Army)	$1,752,427	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Magadia Consulting Inc. Top agencies Army (Department of the Army)	$1,749,452	0.3%	Rank history: not on the FY2022–FY2025 lists; up 98 since FY2020.
93	Tepa Construction Solutions, LLC Top agencies DOI (Department of the Interior)	$1,744,551	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	International Technologies, LLC Top agencies DOS (Department of State)	$1,727,773	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Roof Technology Partners, LLC Top agencies DECA (Defense Commissary Agency)	$1,723,350	0.3%	Rank history: not on the FY2022–FY2025 lists; down 56 since FY2020.
96	Frontier Ala Top agencies Army (Department of the Army)	$1,703,335	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Curtis Mckinley Roofing and Sheet Metal, Inc. Top agencies Army (Department of the Army)	$1,682,392	0.3%	Rank history: #79 in FY2022, not on the FY2023–FY2024 lists and #31 in FY2025; up 53 since FY2020.
98	All American AA LLC Top agencies Army (Department of the Army)	$1,668,916	0.3%	Rank history: #81 in FY2022, not on the FY2023 list, #39 in FY2024 and #87 in FY2025; new, not ranked in FY2020.
99	RHI LLC Top agencies Army (Department of the Army)	$1,611,771	0.3%	Rank history: not on the FY2022–FY2025 lists; up 71 since FY2020.
100	CMP Commercial Construction Inc. Top agencies DOT (Department of Transportation)	$1,571,169	0.3%	Rank history: not on the FY2022–FY2025 lists; up 301 since FY2020.

Show 75 more

100 of 921 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 2381

Code	Net obligations	Largest contractor
23816 Roofing Contractors	$440,821,452	Venegas Construction Corp
23811 Poured Concrete Foundation and Structure Contractors	$39,856,794	Ames Construction, Inc.
23812 Structural Steel and Precast Concrete Contractors	$38,897,549	JP Donovan Construction Inc.
23819 Other Foundation, Structure, and Building Exterior Contractors	$32,275,074	Borealis Enterprises LLC
23814 Masonry Contractors	$19,741,246	Oke-Thomas+Associates, Inc.
23815 Glass and Glazing Contractors	$4,819,616	Up-Side Management Co
23817 Siding Contractors	$2,885,228	Tepa Construction Solutions, LLC

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 $608 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 2381 contractors in FY2021?

1. Venegas Construction Corp ($28.2M), 2. Barlovento LLC ($19.9M), 3. Swan Contracting LLC ($19.3M), 4. Cypress-Sbs JV LLC ($14.4M), 5. Island Contracting, Inc. ($9.8M), 6. Pacific TECH Construction Inc. ($9.65M), 7. MGC Roofing & Construction, Inc. ($9.15M), 8. JP Donovan Construction Inc. ($9.06M), 9. Hughes Construction Services LLC ($8.59M), 10. Chatmon-Vjr, JV, LLC ($8.2M).

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