Alex Rampell is a General Partner at Andreessen Horowitz where he leads the firms fintech investments and serves on the boards of Branch, PeerStreet, Point, and Quantopian. Prior to joining a16z, he was the CEO and cofounder of TrialPay, a leading transactional advertising and payments company serving digital goods and e-commerce clients such as Facebook, Zynga, and Gap, with 100 employees and over $300M in revenue. TrialPay was acquired by Visa in 2015. TrialPay also spun out another company, Yub, the first offline affiliate network, where Alex simultaneously served as CEO through its acquisition in late 2013 by Coupons.com. Previously, Alex cofounded FraudEliminator, the first consumer anti-phishing company, which merged into SiteAdvisor and was acquired by McAfee for $75M in 2006. He has been a frequent writer on e-commerce and advertising topics for TechCrunch, and first coined the term "O2O" to refer to the growing category of Online-to-Offline commerce companies like Lyft and Groupon. Prior to joining the firm, Alex had been an active angel investor (Pinterest, Bloomreach, SiftScience, Wooga, and Twice, among many others) and served as an advisor to the SV Angel fund. He also co-founded three other companies: TXN, a survey and transactional data company; Point, a real estate marketplace; and Affirm, with Max Levchin. He holds a BA in Applied Mathematics and Computer Science from Harvard University. In addition to his a16z board seats, Alex serves on the board of CashStar, a leading electronic gift card company, and KCG Holdings, Inc.