About Us

ESA Adolfson is a multi-disciplinary environmental consulting firm specializing in planning, biological sciences, and water resources. Since 1987, Adolfson Associates, Inc. has been working with clients throughout the Pacific Northwest to provide creative solutions to environmental, regulatory and permitting challenges. In September 2006 we merged with ESA, a nationally recognized environmental firm based in San Francisco. With this merger, "ESA Adolfson," as our Northwest operations are now known, is able to provide our clients with expanded technical capabilities, an increased geographic reach, and a deeper pool of experts. We will continue to provide leading-edge expertise in environmental compliance and planning, permitting, mitigation design and biological evaluations, as we expand our capabilities in water resource management, air and noise evaluations, and other technical specialties.