Triunity Window

About Us

At Triunity, we believe in adding value to our community and our industry

At Triunity, we believe in adding value to our community and our industry. Through continuous enhancement, innovation and growth of our employees, processes and services we achieve this by partnering with other professionals and focusing on excellence that exceeds our clients’ expectations. We also believe that collaboration and diversity are key to strengthening expertise, performance and success.

Triunity engineers attending a conference.
Triunity leadership meeting with local student to discuss community partnership.
Triunity staff at the American Public Transportation Association (APTA) TRANSform Conference.
Triunity staff volunteering at local community center.

Community Impact

The commitment to perform and contribute to social initiatives that meet the needs of the communities in which we live and work is reflected in our company's values, culture and spirit. It is practiced in our policies and strategies and is delivered through our core business activities, which provide expertise to projects that benefit the public and their communities.

Meet the Triunity team

The commitment to perform ethically and contribute to social initiatives that meet the needs of the communities in which we live and work is reflected in our company values, culture and spirit. It is practiced in our policies and strategies, and is delivered through our core business activities which provide expertise to projects that benefit the public and their communities.

about-us-meet
Marvin and Jonnie Thomas. Triunity Co-founders.

Triunity's History and Foundation

After working on numerous and complex projects, Jonnie Thomas, P.E. and Marvin Thomas began to realize their passion. While working on the Transportation Expansion Project TREX RTD/CDOT in Denver Colorado frequent meetings were held during project construction that took place at a local bagel shop at the corner of I-25 and Yosemite. Over the course of several months and lots of bagels, discussion among the “Einstein Group” came to center around forming an Engineering and Management company.

Jonnie joined with his brother, Marvin, to implement their vision, and it was during the challenging economic climate of the early 2000s that Triunity was formed on December 8 2003, with the first contract granted in January 2005. Since that day, Triunity has grown to over 100 professionals located in several states, serving communities nationwide.

Jonnie and Marvin say a hearty “Thank you” to our “Einstein Group” partners!

We are committed to client satisfaction, high quality work, and employee professionalism while adding value to our community and industry.

Dive deeper into why our clients and employees choose Triunity

Sound Transit Tacoma Trestle in Seattle, WA

Our Services

Markets

Contact Us