About W.E. O'Neil
Established in 1925, W.E. O’Neil Construction is an award-winning, 100% employee-owned, nationally ranked general contractor and construction manager. Our foundation is rooted in our people and our commitment to quality, integrity, and responsiveness to our clients’ needs. For 100 years, one thing has remained constant: the positive relationship between the client and contractor that is still based on the traditional values of service instilled by our founder, William E. O’Neil.

W.E. O’Neil proudly builds upon its historic roots to deliver on its mission of bringing thoughtful leadership to the building experience. The company is structured to benefit our clients with the stability of a strong bonding capacity, financial security, and localized regional expertise. We are headquartered in Chicago with operating units in 12 offices across six states: Tennessee, Arizona, California, Colorado, Illinois, and Texas.