Board of Directors

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David Gordon

David works with water and waste water utilities as a management analyst.  He partners with many others in the big effort to help keep the Puget Sound clean.  David received his Masters of Environmental Management from Duke University and has a Bachelors in Business Administration from the College of William & Mary.  With a respect for the natural bounty of the Pacific Northwest, David spends the majority of his free time climbing, hiking, trekking, and generally being outside.  He loves teaching others about the wonders of the outdoors and is excited for all that Pinnacle Explorations can bring to the Seattle community!


Donald Brown

Donald is a Chemist for the Environmental Protection Agency (EPA), where he works on critical environmental issues to ensure everyone has access to clean water and air. Donald earned his B.A. in Chemistry from Grinnell College and holds a Master of Business Administration & an M.S. in Computer Systems Management from the University of Maryland University College.  When not working to protect our environment, Donald enjoys playing on the Toxic Avengers soccer team, hiking, kayaking, traveling, and serving in The City Church Children’s Ministry in Belltown.


Jonathan Koomjian

Jonathan is the computer programmer responsible for keeping this site running.  He grew up in the Midwest, and earned a Bachelors degree in Computer Science from Grinnell College before moving west to be closer to the mountains.  Jonathan spends his free time dreaming up and building cool tech projects that help people reduce their environmental impact. On the weekends, he can be found backpacking in the Cascades, making up for lost time.


Interested in joining the Pinnacle Explorations Board of Directors?

The board is actively recruiting for new board candidates, especially those who can contribute in any of the following ways:

  • Contribute to the board’s diversity, ideally representing communities without current representation
  • Have connections to the news media or social media outlets
  • Have experience dealing with city government or city planning
  • Willing to commit 4-8 hours per month attending board meetings and events
  • Willing to join one or more board committees and to participate in fundraising activities 

If you are interested in this volunteer opportunity, please contact our Executive Director Sean Chan at or (917) 509-2843.