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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BVH Integrated Services Joins Salas O’Brien

Salas O’Brien announced today that BVH Integrated Services has joined the company, expanding our presence in New England and creating a combined firm of 43 offices, more than 1,100 team members, and 290 registered professionals.
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The Leffler Group Joins Salas O’Brien

Salas O’Brien announced that the Leffler Group has joined the company, adding a Denver-based structural engineering team and creating a combined firm of 41 offices with more than 1,000 team members and 260 registered professionals. The Leffler team represents the latest in a series of structural-focused mergers for Salas O’Brien. As the next step in […]
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