Andy Sack is a former Managing Director of Techstars in Seattle.

Andy co-founded three successful Internet technology companies: Kefta, a leading provider of real-time customer interaction solutions (acquired in 2007 by Axciom); Abuzz, an enterprises knowledge management solution that was named number one in the Internet software category by Red Herring Magazine and the top company to work for by Boston Magazine (acquired by New York Times Digital in 1999); and Firefly Network, an Internet company that pioneered internet personalization technologies (acquired by Microsoft). Andy also spent time as an entrepreneur in residence for SOFTBANK Venture Capital (now Mobius VC) where he founded and served on the board of three companies: BodyShop Digital, Quova, and Kefta.

Andy currently serves on the board of and advises a number of companies including: zango, Cooler Planet, and Orange Line Media. Andy was also a founder and board member of Students for Responsible Business, and is a regular lecturer at the University of Washington Business School.

Andy received his undergraduate degree from Brown University in 1990, and his MBA from the Sloan School of Management at MIT. Andy lives in Laurelhurst with his wife and two children.