"Net Worth: $1.3 billion Niklas Zennström is a Swedish billionaire entrepreneur best known for founding several high-profile online ventures with Janus Friis including Skype and Kazaa. More recently he founded the technology investment firm Atomico and has become a significant figurehead for entrepreneurs in the tech sector. Zennström is also the co-founder of the charity organization Zennström Philanthropies. Zennström's most notable success to date is Skype, a telephony company based on peer-to-peer principles. In October 2005 Skype was acquired by eBay for $2.6 billion plus the potential to earn further performance-based bonuses up to $1.5 billion. Zennström was CEO from Skype's inception until September 2007."

Humanitarian

Zennström Philanthropies was founded in 2007 by Niklas and Catherine Zennström. Its mission is to support and engage with organisations that fight for human rights, work to stop climate change and encourage entrepreneurship in order to protect our natural environment and allow those who live in it to realize their full potential. Engaging passionately, Zennström Philanthropies human rights work focuses on Europe and Central Asia where their focus is on raising awareness about rights and working towards long term sustainability of local human rights communities.