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At ESA, we employ over 300 bright, creative, and dedicated professionals throughout our California, Florida, Oregon, and Washington offices. Ours is a top notch team widely recognized for technical excellence and solutions-based consulting.

ESA was founded in California in 1969, shortly before enactment of the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA)—landmark laws that have greatly influenced environmental planning and analysis.