Mark Suster is managing partner of Upfront Ventures, a Los Angeles venture firmSuster's fastidiousness has created what many now consider one of the best tech conferences of the year.
But Suster's abrasive, take-no-prisoners approach has also alienated some startup founders and investors.
These luminaries were among the 1,000-plus attendees of last month's Upfront Summit, a glitzy, invite-only tech conference organized by Upfront Ventures and its managing partner, Mark Suster, in Los Angeles each year.
"Mark and the Upfront Summit helped put LA tech and investing on the map," said Jeffrey Katzenberg, the cofounder of DreamWorks and WndrCo.
Several years ago, a founder whose startup Suster invested in was in a conference room rehearsing their presentation for the Upfront Summit.