Primary Job Title Co-founder & Senior Advisor Primary Organization 
Mainsail Partners
Location San Francisco, California, United States Regions San Francisco Bay Area, West Coast, Western US Gender Male
Investor Type
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C. Jason Payne is a founder of Mainsail Partners. In addition to co-managing the firm, Jason is an active advisor to Mainsail CEOs through his role as a board member for Mainsail’s portfolio companies. Jason’s background as an entrepreneur and senior executive provides valuable experience, which he shares with management teams making the transition
from bootstrapping to investing for growth.
Earlier in his career, Jason co-founded a venture-backed software company and held a variety of roles with American Dental Partners, a dental practice management company now owned by JLL Partners after a 2012 take-private. During his tenure with ADPI, Jason helped grow the business from start-up to over $130 million in revenues and through its 1998 IPO. Jason began his career with Summit Partners, a leading global private equity and venture firm. Jason received an A.B. in International Relations from Stanford University.
In 2010, Jason teamed with Gavin Turner and John Griscavage (CEO of Professional Healthcare) to start the Madrone Foundation, a private foundation with the goal of assisting the financially challenged to pay for healthcare and education expenses.
Jason also sits on the advisory board of the Smithsonian Environmental Research Center (SERC), a division of the Smithsonian Institute, and enjoys spending time with his wife, two daughters, and their yellow lab.
