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Brett Martin

avatar for Brett Martin

Brett Martin is co-founder and CEO of Sonar, a location-based mobile application that leverages social network data to reveal hidden connections and interests you share with the people nearby. Prior to Sonar, Brett helped found AppFund, a seed stage mobile incubator from K2 Media Labs. Before K2, he studied early stage startups as a Fulbright Scholar in Milan, helped launch Vice Magazine's VBS.tv, and worked on Wall Street as an equity research associate. Brett attended Dartmouth College and grew up in Ocean City, MD.


Speaking Schedule




  • Band
  • Party
  • AC Select
  • SXSW Interactive Conference
  • SXSW Film Conference + Screenings
  • SXSW Music Conference
  • Venue
  • Free Stuff
  • Theme
  • Level

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