Jeffrey Walker served 25 years as the CEO and cofounder of CCMP Capital, the $12 billion successor to JPMorgan Partners, JPMorgan Chase & Co's global private equity group, the vice chairman of JPMorgan Chase & Co. and chairman of the JPMorgan Chase Foundation, and said he was "always pretty open" with his coworkers about practicing mindfulness -- even taught meditation to his fellow executives. Walker, who now holds leadership roles in a number of non-profits and has an investor group called Bridge Builders Collaborative, puts a huge emphasis on teamwork and building better relationships to do good in the world.