Together, the firms will advance society as leaders for sustainability in the built environment.

Salas O’Brien announced today that sustainability leader Epsten Group has joined the firm. Together, the firms will create a brighter future with sustainable solutions for the built environment.

The merger creates significant shared value through broader in-house expertise, enhanced opportunities for employee ownership, and limitless potential for personal and professional growth.

“By merging with Epsten Group, we are confirming and strengthening our shared commitment to sustainable solutions,” said Darin Anderson, Salas O’Brien chairman and CEO. “We are excited to share this team’s visionary approach with our clients, because sustainability in the built environment has a lasting impact for generations to come.”

Epsten Group’s capabilities and portfolio complement Salas O’Brien’s expertise in sustainability consulting, building commissioning, architecture, and interior design. Through its projects and company culture, Epsten Group works to create a global impact surrounding green initiatives.

“Along with my partners, Darren Draper and Lauren Wallace, I was continually amazed at how closely our values align with Salas O’Brien,” said Bill D’Onofrio, principal and director of operations for Epsten Group. “That was the most important deciding factor in order to continue providing an excellent experience for our team and the clients we serve together.”

As the next step in Salas O’Brien’s strategy to be local everywhere, with international resources, the Epsten team will continue to be managed by its current leaders and will adopt the Salas O’Brien name after a transition period. The merger closed on February 1, marking the second company to join Salas O’Brien in 2023. This merger expands Salas O’Brien’s presence to more than 65 North American offices with over 2,050 team members.