Interested in partnering with OAC? Have a question about how we can collaborate? Curious about how our services can help your project? Contact us by either filling out the form below or using any of the contact information listed.

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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 >

Blog Posts

OAC Services Tops List of 100 Best Companies to Work For in Washington State

If you aren’t in the architecture, engineering and construction industry, … Read more >


Todd Smith

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


Chris Priest

Joining OAC in 2017 as Marketing Coordinator, Chris has more … Read more >


Grace Wong

PRACTICE AREAS > Forensic and failure investigation > Structural and … 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.