Andrew Duffy

Andrew Duffy is the co-founder and CEO of SparkPlug, a San Francisco software company that pays frontline retail and restaurant workers cash bonuses for the sales they actually drive. A behavioral-science nerd from Harvard who put in time at Bridgewater Associates and built a luxury whole-leaf tea brand before this, Duffy turned a teenage hot streak selling margaritas into a venture-backed platform that has routed millions of dollars in supplemental income to hourly employees and raised $11.5 million to keep going.