Since 1991, Aspen's multidisciplinary staff has provided environmental compliance, impact assessment, and mitigation services for energy and infrastructure projects of all sizes, including significant on-call task order programs. Our expertise in assembling specialty teams and our effective management of complex, highly publicized projects is unsurpassed. We build lasting client relationships through our responsiveness, loyalty, anticipation of client needs, focus on solving problems, and through efficient management. To learn about our satisfied clients, see "What our clients say..." To learn about our Founder and our Vice Presidents , click here.

     Aspen's core strengths include: assembling specialty teams and effective management of large, complex projects and task-order contracts; NEPA and CEQA compliance; air quality assessment and permitting; biological resources; socioeconomics and land use; mitigation monitoring; surface water engineering and hydrology; watershed management planning and habitat restoration; and public participation.

See our "Services and Capabilities" section to learn more about our abilities and past project experience. View our newsletter, "Recent Accomplishments" to learn more about our latest work.

Aspen's principal, Dr. Hamid Rastegar, is an expert in engineering, the physical sciences, and environmental impact assessment. He is joined by Vice Presidents Jon Davidson (AICP), Agoura Hills Operations; Susan Lee, San Francisco Operations; and Tom Murphy, Sacramento Operations, who bring additional project management and technical leadership in environmental planning, earth sciences, and compliance and permitting, and engineering consulting services, respectively. This strong management team is supported by an interdisciplinary staff of environmental scientists, engineers, planners, technical specialists, and administrators.

Aspen has five locations in Agoura Hills (southern California), San Francisco, Sacramento, and Davis, California as well as Aspen Consulting Engineers, our division located in Phoenix, Arizona. We have approximately 65 employees, including a number of mitigation monitors working in the field on construction projects throughout the state. Our staff members are highly trained professionals in such disciplines as environmental science, engineering (including air, water and noise disciplines), land use and environmental planning, biology (human, plant, and wildlife), and the earth sciences.

Aspen Environmental Group is dedicated to continuous improvement in the understanding of the relationships between human activities and the environment. We are committed to providing practical solutions in support of a strong economy and industrial progress, based on the principles of sustainable use of Earth's resources and maintenance of a safe and healthy environment.

Every employee at Aspen takes pride in doing quality work, improving performance of each project, meeting schedules, and exercising discipline in adhering to project budgets. Our overarching goal is demonstrated in our responsiveness and the achievement of total client satisfaction.