Niklas Zennstr�m (Swedish: [?n??k?las ?s??n?str�m] (About this soundlisten); born 16 February 1966) is a Swedish billionaire entrepreneur known for founding several high-profile online ventures with Janus Friis including Skype and Kazaa. He also founded the technology investment firm Atomico and has become a significant figurehead for entrepreneurs in the tech sector. Zennstr�m is also the co-founder of the charity organization Zennstr�m Philanthropies.