John Kosner is an internet pioneer and four-decade veteran of sports media. Today, he is president of Kosner Media, a digital media and sports consultancy.

In 2018, John and the late NBA Commissioner Emeritus David Stern created Micromanagement Ventures, a portfolio of sports technology start-ups focused on media, betting and player health. John continues to serve as an advisor to and an investor in 10 of the original Micromanagement Ventures portfolio companies which include DDSports Inc. (ShotTracker), WHOOP, WSC Sports, Overtime and Bit Fry Game Studios. In addition, John is an advisor to the 890 Fifth Avenue Partners, Inc. SPAC as well as Sportradar, Molekule, Lumen, William Hill, EDO, the Big East Conference and the PRCA. Previously, John led digital media at ESPN from 2003-2017, after stints at Sports Illustrated, the NBA, CBS Sports and NBC Sports.