Seth Horstmeyer

Seth Horstmeyer

  • Director
  • Global Ocean Legacy,
  • The Pew Charitable Trusts


Seth Horstmeyer is a director with Pew’s Global Ocean Legacy project.  He oversees operations for Pew’s efforts to create large, highly protected marine reserves, focusing on projects in Australia, Easter Island, New Zealand, and Palau.

Global Ocean Legacy is working to establish the world’s first generation of great marine parks by securing the designation of large, fully protected reserves.  To date, these efforts have helped to double the amount of ocean habitat that is safeguarded worldwide.

Horstmeyer joined Pew in 2008 and has assumed many roles within the environment team.  He was director of the initiative to reform industrial animal agriculture. Before that, he served as a senior officer responsible for overseeing domestic field operations and advocacy in more than 30 states.  During that time, he also served as director of Pew’s Law of the Sea project. In that position, he worked with American businesses and national security interests to create the American Sovereignty Campaign to encourage the U.S. Senate to approve an international treaty governing activities on the high seas.

Before coming to Pew, Horstmeyer spent more than six years with the National Environmental Trust.  Prior to that, he worked for the Environmental Investigation Agency, an international nonprofit organization that investigates and exposes environmental offenses.

Horstmeyer holds a bachelor’s degree in geology from Miami University.

media contact

Laura Margison

Director, Communications