SOIL is a boutique consulting company founded and led by Dr. Britt Yamamoto and supported in partnership by organizations such as Global Equity Forward and Perennial Leadership.

SOIL works with:

  • Social Sector Executives and Leaders
  • Educators
  • Administrators
  • Business Owners
  • Special Event Planners
  • Non-profit Organizations
  • Colleges and Universities
  • Fellowship programs
  • Bilateral and multilateral organizations
  • Municipalities
  • Facilitators

Britt Yamamoto, Ph.D., M.Sc.


Dr. Yamamoto is an expert in designing strategies and building environments that emphasize ongoing, reciprocal learning within businesses, organizations, and educational institutions. He is highly skilled in working with leaders to grow their self-awareness, deepen their purpose, and enhance their personal and professional wellbeing. 


He is the co-founder and CEO of Perennial, a leadership training organization that works with community leaders in Africa, Asia-Pacific, Latin America and the Middle East on how to connect to and grow their long-term leadership capacities. He is also the founder of iLEAP, an international non-profit focused on global youth and leadership development.

A Clinical Associate Professor in the University of Washington Department of Global Health, Dr. Yamamoto teaches one of the largest fee-based courses, with around 12,000 students enrolled per year.

His book, a collection of leadership practices and perspectives informed by his work as an organic farmer, is set for publication in 2022.


Britt is an avid long distance runner, novice podcaster, and, as a child of the Pacific Ocean, finds joy in warm water, navigating beach breaks, and the perfect taco.  

He holds a Ph.D. in Geography from the University of Washington and an M.Sc. in Community Development from the University of California at Davis and a B.A. in English Language and Literature from the University of Michigan.