About Us

 Construction to minimize disruption in the workplace.

Cowen Tenant Improvement has been renovating buildings for our clients for 125  years.


One of our very first projects dates back to 1920 when we converted a bank into a hotel right here in Tulsa. Other notable projects include a 50,000-square foot call center we completed in 75 days, as well as a landmark project on the “Mansion House” in downtown Tulsa where we completed a complete interior and exterior renovation and restoration.


We’ve worked all over the state on countless types and sizes of tenant improvement projects. Our team can complete smaller ground-up projects, industrial buildings of all sizes and scopes, and complete interior renovation projects. 

At Cowen, we know that construction is about more than brick and mortar – it‘s about relationships. Cowen Construction has built a reputation for our quality of service, honesty, and integrity. A high percentage of Cowen’s volume is from repeat customers, illustrating Cowen’s commitment to client satisfaction.

We truly believe that our employees are our greatest asset! As such, we treat everyone on our team with respect and appreciation for their contributions to the company. It’s our philosophy that your success is just as important as that of our business. We believe not only in providing ongoing development and training but also in providing opportunities to enhance your abilities and to perform your role effectively in order to prepare you for the next step in your career.

As we continue to grow our company, we are actively seeking dedicated professionals to join our Cowen Construction family.