About Cowen Tenant Improvements

Cowen Tenant Improvements offers 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.

Ross Phippen, Vice President
Ross spent 17 years in facility management and built out spaces all over the US, Canada, and Europe. In 2005, Ross became Cowen Construction’s own client, which then led to him being hired as head of the Tenant Improvement division within the company. His industry-leading, diverse experiences make Ross’s leadership invaluable to Cowen Tenant Improvement as he oversees and mentors his team and manages projects.

Ross is the past president of the Internatioal Facility Management Association where he also served on the board for 20 years. Ross serves his local community through his heavy involvement in St. Jude’s fundraising efforts. A unique project he works on is building playhouses for St. Jude patients and their families around Tulsa. And with each house they build, the team of volunteers grows as they add new families who want to serve alongside them.

Certifications/Memberships:

Certified Facility Manager
Certified Professional Constructor
Green Advantage Certified
Member, International Facility Management Association
Former Member, Building Owners and Management Association