We Build history.



Big thinkers. Team collaborators. Budget savers.

CMSWillowbrook is a full-service construction management company committed to building value. Our construction managers oversee projects from inception to completion—including planning, design, procurement and construction—to ensure technical and management expertise on each project. The company employs more than 150 employees at offices in Chickasha, Oklahoma City and Tulsa.

CMSWillowbrook’s professional construction managers are committed to delivering high-performance results. Our expertise, teamwork and value-added services make us the premier construction management firm in Oklahoma. Integrity is built into every level of the organization. Our passion for building value drives our performance, ensuring an unrivaled experience and results.


Our legacy

CMSWillowbrook was founded in 1974 by Cary DeHart, a pioneer of the construction management concept. We are proud to have been awarded one of the first public construction management contracts in Oklahoma. That legacy of innovation continues more than 40 years later.

Over the last four decades, CMSWillowbrook has grown from one office in Chickasha to additional offices in Oklahoma City and Tulsa and a staff of more than 150 dedicated employees. 

In 2017, Weston DeHart became president of CMSWillowbrook after being groomed for a decade by his father Cary DeHart. 

Our family-owned, full-service construction management company continues to manage transformative projects across the state.