Scott is an entrepreneur and angel investor. He is best known as a co-founder of IronPort and an early advisor and board member at PayPal. Scott started his career as a pioneer in the email business. He was Founder and VP of Technology at ListBot, the largest ASP for business email list hosting. ListBot was acquired by Microsoft. After ListBot, Scott spent his time working with other start-ups as a board member and investor. These start-ups include eVoice, creator of the first email-enabled home voicemail service, which was acquired by AOL in 2001. In December 2000, Scott co-founded IronPort, an email appliance provider that was acquired in 2007 by Cisco for US$830 million. Other private equity investments include Uber, Zappos.com, LiveOps, Facebook, Hi5.com, Tagged.com, iLike, and Causes.com. Banister attended University of Illinois at Urbana-Champaign, from which he dropped out in 1996 to move to Silicon Valley.