OPN was founded in 1979 and is led by Principals Daniel Thies, Terry Gebard, David Sorg, Roger Worm, Richard Seely, and Wesley Reynolds and Associate Principals Danielle Hermann, Justin Bishop, and Kristin Lewis. OPN is a regional, knowledge-based design firm, comprised of 100+ talented individuals engaged in open collaboration. Our practice is built upon strong relationships—with our clients and each other—and a commitment to doing what we say we’ll do. As a firm we are committed to the highest standards of professional practice and we enjoy the process and results of creating architecture that exceeds our clients’ expectations.

Roger Worm
David Sorg
Terry Gebard
Kristin Hurt
Landon Burg
Chris Carotta
Denise Clark
Nick DeCarlo
Joe Feldmann
Elisha Horsfall
Vicki Hyland
Emily Kistner
Toby Olsen
Joe Tursi
Joe Wallace
Veronica Worley
Scott Allen
Beth Riesberg
Holden Rasmussen
Angela Gehl
Jarrod Siegel
Ryan Ellsworth
Pylar Eaton
Alex Streyffeler
Eli Goll
Vickie Choate
Carly Weber
Jen Wasek
Annie Vo
Hugh Soward
Jordan Trannel
Erica Steapp
Ryan Potter
Jim Miller
Vivian Masters
Grant Bauermeister
Paige Sivinski
Marian Petison