Salas O’Brien is a multi-discipline engineering and consulting firm of over 2000 team members in 65 offices across North America, focused on the design and future of sustainable, energy-efficient solutions aligned with our clients’ unique needs. We are North American leaders in the planning, design, and implementation of geothermal systems, central energy plants, and district energy systems. To date, Salas O’Brien has completed over 400 geo-exchange projects, providing over 84,000 tons of systems capacity.