W.E. O'Neil Construction

$81.8M revenue • 501 employees • 800 N Haven Ave Ste. 100, Ontario, CA, 91764, United States

Last Updated Aug 7, 2025

Company Overview

Company Name

W.E. O'Neil Construction

Address

800 N Haven Ave Ste. 100, Ontario, CA, 91764, United States

Approx. Annual Revenue

$81.8M

Employees

501

Established

1996

About W.E. O'Neil Construction

W.E. O'Neil Construction is a 100% employee-owned general contractor based in Littleton, Colorado, with approximately 501 employees. The company has been building great relationships since 1925 and has locations in Arizona, California, Colorado, Illinois, Tennessee, and Texas.

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Key Decision Makers

Brian Ramsay Ceo
Susanna Hughes Director of Marketing
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Bryan Dunn President
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Todd Guthrie President
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