How drinking Guinness with Biz Stone launched one of the fastest-growing startups in the Valley today

Intercom Even in the Silicon Valley world of hyper-growth startups, Intercom's success is fast and furious. The company has grown from $1 million inannual recurring revenue (ARR, i.e. revenue under contract) to $50 million in ARR in just three years, almost entirely through word of mouth sales, CEO Eoghan McCabe tells Business Insider. That $50 million in ARR comes from 17,000 paying customers, which equates to 100,000 monthly active users, the 32-year-old McCabe says. The company was founded in...