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OAC Seattle

701 Dexter Ave North
Suite 301
Seattle, WA 98109

p (206) 285-4300

f (206) 285-4371

123 E San Carlos St.
Suite 571
San Jose, CA 95112

OAC Spokane

905 W. Riverside
Suite 510
Spokane, WA 99201

p (509) 464-2206

319 7th Ave SE
Suite 102
Olympia, WA 98501

OAC Feed

Blog Posts

Jeff Jurgensen & Jonathan Miller Receive Community Leadership Awards

Congratulations to Jeff Jurgensen and Jonathan Miller for receiving Community … Read more >

Blog Posts

OAC's Constructability Review

One of the biggest positive impacts OAC can have for … Read more >


Damon Gardella

PRACTICE AREAS > Project & construction management > Program management … Read more >


Laura DeGooyer

PRACTICE AREAS > Project management > Construction management > Program … Read more >


Joshua Cloud

PRACTICE AREAS > Project & construction management > Lean construction … Read more >

Blog Posts

OAC’s Grace Wong coauthors “Moisture Analysis in Unconditioned Concrete”

OAC’s very own Grace Wong, PE, AIA, LEED AP, coauthored … Read more >

Construction Management. Architecture. Engineering.

OAC has a history of success with specialized design and construction because we love what we do. We serve our clients as collaborators, and we design and manage projects that improve where people live, work, learn and play. Because of this, we’ve gathered a superlative staff of professionals who share our core values, and our vision – do what we love in the service of people who love what we do.