LinkedIn operates the world's largest professional network. Started from a living room in 2002, the site officially launched on May 5, 2003. After a month in business, it counted 4,500 members in the network. Today LinkedIn counts 300 million members in over 200 countries and territories around the globe. BVP funded LinkedIn in 2006 and supported the company as it grew. The company went public five years later in May 2011 (NYSE:LNKD).