Sten Tamkivi helped grow Skype's Estonian engineering team before starting Teleport, one of the first companies built around people living and working from anywhere, and he later sold it to Topia. He built his early investing reputation as one half of a well-known angel investing duo with Taavet Hinrikus, has mapped how talent and companies grew out of the Skype network through his Skype Mafia project, and often talks about backing companies that can shape a country's or region's economy, not just deliver strong returns.