Ethos Architects is a full-service architecture and interior design firm based in Tulsa and Oklahoma City. With over 70 professionals, we bring decades of experience to projects that serve communities across Oklahoma and the surrounding region, including education, healthcare, civic, nonprofit, and commercial spaces.

Originally founded in 1989, our firm has grown and evolved to reflect the people and purpose that define us. Formerly known as KKT, our rebrand to ETHOS represents that growth, providing a clear expression of our values, our vision, and our continued commitment to thoughtful design, strong partnerships, and lasting impact.