Qualified Experts Solving Big Challenges

We look at each project with fresh eyes focused on achieving high quality, great relationships, and a sustainable future.

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Broad Services Backed by an International Team

From MEP, structural, and civil engineering to commissioning, technology, and more, our international talent pool is deep. But we know that local, responsive service is critical to your success.

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Complex Projects, Stronger Relationships

We build value and make our clients look good by investing in consistent, long-term relationships. And since we build for the long-term, we have a team turnover rate well below the industry average.

Our Passion
Powers Your Success

3D/Virtual Reality Design

Salas O’Brien uses 3D and virtual reality to help its clients empower their decision-making.

How we do it

Commissioning for a Better Project

Why is commissioning required by more and more jurisdictions? What value does it add?

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Change Orders

Why our change orders are one third of industry average.

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Complex Projects Are Where We Shine Brightest

Our time-tested process and people-first approach have reliably solved client challenges since 1975.

Our Awards

Our Insights

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Girard Engineering Joins Salas O’Brien

Salas O’Brien announced today that Girard Engineering has joined the company, further strengthening Salas O’Brien’s presence in the Washington, DC, region and creating a combined firm of 51 offices, more than 1,300 team members, and 330 registered professionals.
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SIA Solutions Joins Salas O’Brien

Salas O’Brien announced today that SIA Solutions has joined the company, adding a nationwide team focused on federal projects to Salas O’Brien and creating a combined firm of 50 offices, more than 1,250 team members, and 320 registered professionals.
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