Yair is a serial entrepreneur and active angel investor. 

At 26, he co-founded ICQ, the world's first Internet-wide instant messaging service, which was acquired by AOL (NYSE:AOL). In 2001, Yair co-founded Dotomi, an online advertising technology company that focuses on creating personal, relevant, and timely one-to-one messaging between marketers and their customers. Dotomi was acquired by ValueClick (NASDAK:VCLK). Yair holds a B.Sc. in math and computer science from Tel-Aviv University and holds several patents in the field of instant messaging. In 2005, he received the Wharton Infosys Business Transformation Award, and in 2009, he was chosen by the World Economic Forum as a Young Global Leader.