We're a design and construction performance management firm that believes better is always possible.


Building with passion

To serve our clients and communities as trusted partners to design, build and improve where people live, work, learn and play.

To do what we love in the service of people who love what we do.

Committed to our values

Lead with Humility
We know that no one has all the answers, and the collective wisdom of a team is greater than the sum of its parts. We lead with humility and instill a culture that encourages continuous learning and improvement.

Engage Collaboratively
We set aside our individual agendas to truly listen, learn, and work toward a common goal with our team, partners, and clients. We actively seek out diverse perspectives to drive solutions greater than any of us can achieve alone.

Deliver with Passion
We love what we do. We are motivated to succeed and inspire others to push limits, make positive impacts, and deliver quality work with passion.

We set the bar higher

Since 1955, OAC has served our clients and communities as trusted partners. Our dedicated team works throughout the United States, with headquarters offices in Seattle and additional offices across the West Coast. We are diverse—in role, in background and in perspective—but across every department, from design to engineering, to project management, we share something very important: our belief that “good enough” is never enough.

That spirit of always aiming higher has helped us establish ourselves as the design and construction performance management firm that building owners, developers, and facilities teams from around the world turn to when they need confidence and control over their projects. Our solutions-oriented mindset put them at ease knowing their expectations will be not only met but exceeded across every department.

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Why different is better

At OAC, we never settle for “good enough.” We integrate into our client teams to understand their pain points and how they define success—then we refine our process to deliver better outcomes.

We use our emotional intelligence to strengthen and support our client teams—so they become better versions of themselves. We bring a better set of solutions to the table, leveraging the most advanced industry tools and technology. And we’ll do everything we can to get a better outcome for your bottom line.

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Delivering better outcomes

Every extraordinary space we’ve ever designed or built reflects the extraordinary people on our team. From day one, you’ll see that our people are truly something special: authentic, compassionate, smart and driven.

We relish the opportunity to solve challenging problems in new and interesting ways. The result? Millions of dollars in savings, projects delivered ahead of schedule, sustainable innovations and peace of mind knowing your project is in good hands.

See our outcomes in action
Local and national awards
Projects completed over the last decade
Years voted best place to work
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