Salas O’Brien rises to #31 on ENR’s 2025 Top 500 Design Firms list

Salas O’Brien has once again earned a top spot on Engineering News-Record’s annual list of the Top 500 Design Firms, rising to #31 in the 2025 rankings. The list is a widely respected industry benchmark, highlighting the largest and most impactful design firms across architecture, engineering, and related services in North America.

This year’s placement reflects Salas O’Brien’s continued momentum, driven by the firm’s integrated team, entrepreneurial culture, and relentless focus on client success.

This ranking is really an indicator of the value we’re creating for our clients, partners, and employee-owners. We don’t grow for growth’s sake—we grow to meet evolving needs, expand our capabilities, and create opportunities for our team. This recognition affirms that we’re delivering on that commitment.

Darin AndersonChairman and CEO

Anderson was also quoted in the article in response to a question about how the firm is approaching the current business climate. “We’re not immune to market uncertainty,” he said, “but we’re staying focused on being a steady, strategic partner during uncertain times. We’re fortunate at Salas O’Brien to have a strong backlog, institutional clients, and a lot of renovation and expansion projects that have a strong ROI, as well as a diverse client portfolio, which help us navigate these headwinds.”

Salas O’Brien was also recognized on several of ENR’s supplemental lists.

#19 in General Building
#39 for International Markets
#16 in Industrial Process
#13 in Telecommunication

ENR ranks firms based on annual design-specific revenue. Salas O’Brien has steadily advanced in the rankings in recent years, underscoring the strength of the firm’s multidisciplinary expertise and long-term vision of building a firm of enduring impact.

Visit ENR online to view the full issue and rankings.

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