As one of Facebook’s first 10 employees, Colleran helped the social networking service grow to become one of the world’s most influential global companies. As Facebook’s Global Partnership Lead, he was responsible for managing the advertising relationships with some of the world’s largest advertisers. Colleran left Facebook after a seven-year stint. At Slow Ventures, a venture capital firm Colleran co-founded and now manages, he invests the personal capital of dozens of top technology founders, CEOs, and executives into early-stage companies such as Evernote, Nest, Pinterest, Tumblr and Dropbox. He is also Colleran is also a Venture Partner at General Catalyst Partners, which focuses on Series A and Series B technology investing.