About Us

W.E. O’Neil Construction is a national, 100% employee-owned commercial construction company with local offices in Phoenix and Tucson, AZ. We have been in Arizona for over 40 years and are one of the Top 100 general contractors in the United States, according to Engineering News Record. Headquartered in Chicago, we serve our clients from 12 offices across six states, including AZ, CA, CO, IL, TN, and TX. Our offices cultivate a local presence and offer the individualized attention of a smaller company. We have built throughout the nation and are focused on smart growth.