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Our Team

Our talented, passionate team believes that growing food changes lives. Together we've created thousands of gardens and taught hundreds of thousands of gardeners. And we're just getting started.

  • Hugo Matheson


  • Madeleine Nelson

    Vice President of Advancement

  • Dianna Zeegers

    Vice President of Program

  • Kelsie Contreras

    Digital Marketing Coordinator

  • Marie Dennan

    Assistant Director of Programs

    Marie Dennan lives in Memphis, TN. Marie has focused her entire career around school gardening and food systems and holes a Master's in Public Administration and an MA in Applied Anthropology from the University of Memphis. Marie also has a culinary background and as an advocate for the local food movement, loves cooking with produce bought at the farmers market and supporting local food businesses.

  • Ava Jackson

    Director of Programmatic Operations

  • Emma McSteen

    Development Assistant

  • Sam Koentopp

    Director of Educational Programs

    Sam began his tenure with Big Green in 2013 supporting our efforts to build 200 Learning Gardens with Chicago Public Schools. He helped establish and continues to develop our programing to help all Big Green garden participants learn the skills needed to grow food and connect deeply with their gardens. Sam loves food, soil, and plants, and believes in the interconnectedness of all living things that is so profoundly evident in a garden. He brings that passion to Big Green to inspire others to find their own pathways through the garden.

  • Jonathan Pavley

    National Garden and Product Manager

  • Parker Rechsteiner

    Assistant Director of Events

  • Jasmine Trujillo

    Assistant Director of Finance and Grants

Board of Directors

Big Green's Governing Board provides the organization with broad expertise in education, entrepreneurship, nonprofit management, and programmatic impact.

  • Kimbal Musk

    The Kitchen Restaurant Group, Nova Sky Stories

  • Don Degnan

    The Kitchen Restaurant Group

  • Patrick Drake

    AUTONOME, Inc.

  • Dorsey Hopson


  • Kasey Kumaran-Stark


  • Wendy Lea

    Energize Colorado

  • Hugo Matheson

    The Kitchen Restaurant Group

  • Larry Mueller


  • Michael Tang

    Tang Industries