Environmental Science Associates

We are Environmental Science Associates (ESA), a 100% employee-owned environmental consulting firm with a rich history spanning over five decades. Since our founding in 1969 by three scientists in California, just before the enactment of landmark environmental laws like NEPA and CEQA, we have been dedicated to the principles of sound science, technical excellence, and integrity. Our journey began with a pioneering spirit, utilizing science-based analyses to inform community planning and decision-making. Today, with a dedicated team of over 500 professionals across offices in California, the Pacific Northwest, and the Southeastern United States, we continue to build on this legacy. We specialize in a wide array of services, including community and airport planning, environmental analysis and assessment, natural and cultural resources management, environmental restoration and design, and regulatory compliance. Our multidisciplinary approach brings together scientists, planners, historians, archaeologists, engineers, and designers to deliver critical thinking and in-depth analyses for successful policy development and project planning.

At ESA, we see ourselves as more than just consultants; we are trusted advisors and partners to our clients, who range from government agencies to nonprofit organizations and private industries. Our employee-ownership model fosters a unique culture of collaboration and commitment, where every team member has a vested interest in our collective success and the positive impact of our work. This ownership culture is rooted in a shared passion for making a difference, for tackling complex environmental challenges, and for delivering enduring, multi-objective solutions. We are proud to have contributed to iconic projects that have improved environmental stewardship and created a more sustainable future for our communities and wildlands. We are committed to fostering a diverse and inclusive environment where every employee-owner can be their authentic self, contribute meaningfully, and grow their career. We believe that by working together, we can continue to raise the industry standard and advance a more sustainable and resilient future for generations to come.