Mr. Tjan joined Parthenon in 2001 and serves as our firm's Vice Chairman and also previously served for five years as a Senior Partner. He is CEO and Managing Partner of The Cue Ball Group, a private investment firm focused on information media and consumer businesses. In 1996, he founded the pioneering web development and services company, ZEFER (now Niteo Partners of NEC), where he was a driving force behind the company's vision and growth to more than 800 people. Mr. Tjan holds an A.B. in Biology from Harvard College, an M.B.A. from Harvard Business School and was a Belfer Center Fellow at Harvard's Kennedy School of Government.

Mr. Tjan is also a recognized thought leader in the business arena and is a World Economic Forum Global Leader of Tomorrow. He has a regular blog featured on Harvard Business Online, “>Upstarts and Titans.” He is also a frequent contributing author to several publications including the Harvard Business Review, where he co-authored one of their most popular customer strategy articles, "Transforming Strategy One Customer at a Time.”