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Salas O’Brien welcomes Sigma Engineered Solutions

Merger enhances facility engineering expertise in North Carolina.

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Salas O’Brien is expanding its integrated design services on the east coast by welcoming Sigma Engineered Solutions, a firm recognized for its client-first approach to complex projects. Sigma brings more than two decades of experience in mechanical, electrical, plumbing, fire protection, and telecommunications engineering design, along with a strong track record across renovations and new construction projects.

Based in Raleigh, North Carolina, Sigma has built a strong reputation serving healthcare, higher education, government, K–12, public and commercial markets. The merger reflects Salas O’Brien’s continued strategy of partnering with high-performing, results-focused firms that deepen local reach and broaden technical depth.

Sigma Engineered Solutions brings a strong track record, deep community roots in the Southeast, and a team of engineers who genuinely care about the quality of their work. Their expertise in facility design across healthcare, education, and government markets strengthens our built environment capabilities and gives our clients even more depth to draw from.
Darin AndersonSalas O’Brien Chairman & CEO

With this move, Salas O’Brien continues to grow its ability to deliver integrated engineering solutions while preserving the entrepreneurial culture and regional relationships that define both firms.

Joining Salas O’Brien is a natural next step for our firm. We’ve always believed that great engineering comes from collaboration, precision, and a commitment to serving the people who use these buildings every day. Being part of a national organization with that same philosophy means we can do more for our clients and open new doors for our team.
Reggie AdamsPresident of Sigma Engineered Solutions
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Mergers