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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Allied Engineering Joins Salas O’Brien, Expanding Engineering Services in New England

Maine-based Allied Engineering has joined the company. This expands Salas O’Brien’s presence in New England and creates a combined firm of more than 55 offices with over 1,650 team members and 370 registered professionals.
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Salas O’Brien Participates in 2022 Canstruction

Over the 2022 Labor Day weekend, members of Salas O’Brien’s Southern California team participated in the annual Canstruction® Orange County event, crafting a sculpture out of donated canned foods to benefit the Orange County Food Bank.  This is one of the many community events the Salas O’Brien team participates in annually, with philanthropy and community […]
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