Concord Leadership

John Salas

Managing Principal

John is a Salas O’Brien founder and leads the firm’s California offices and has been involved in some of our most technically complex work anywhere. His passion for sustainability is a hallmark of the Salas O’Brien approach.

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Philip Dregger

Vice President

Philip leads the Concord office and is passionate about serving clients and demonstrating the Salas O’Brien Difference in every interaction.