Prior to founding Adaptive, Brian started two prior software companies: Attentive and TapCommerce. Under Brian’s leadership, Attentive has grown to $500M+ in annual revenue,  8,000+ customers and 1,000+ employees. Brian raised ~$900 Million in venture capital from Sequoia Capital and other leading firms. Brian serves as Chairman of the Board of Attentive. Previously, Brian co-founded and sold TapCommerce to Twitter, where he worked as a Senior Director.