ESA brings to each project a broad point of view that comes from over four decades of working with private developers, municipal utilities, the public, and federal, state, and local agencies coupled with the project-specific expertise and practical knowledge it takes to perform at the local level.

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At ESA, we employ over 475 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.