News & Insights

Salas O’Brien continues to earn recognition among the engineering industry’s leading firms, placing #58 on Engineering News-Record’s Top 150 Global Design Firms, #7 on Consulting-Specifying Engineer’s MEP Giants list, and securing its 14th consecutive appearance on the Inc. 5000 list of America’s fastest-growing private companies. Together, these latest rankings reflect a focus on continued growth, deep expertise, and ability to serve clients across a broad range of markets and geographies.

Salas O’Brien advanced to #58 on ENR’s 2026 Top 150 Global Design Firms list, reflecting the firm’s growing global reach and the breadth of services delivered to clients around the world.

The latest MEP Giants ranking offers a closer look at Salas O’Brien’s continued strength in mechanical, electrical, and plumbing engineering. The firm ranked #7 based on North American MEP design revenue and reported 13.1% year-over-year growth, the second-highest growth rate among the top 10 firms.

Inclusion on the Inc. 5000 for the 14th consecutive year shows a sustained track record of growth and performance, placing Salas O’Brien among the nation’s most successful private companies.

Behind every ranking are talented teams who bring deep expertise to every project, strong relationships built on trust, and a shared commitment to delivering lasting solutions.

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