#63 Aaron Levie

Aaron Levie #63 Co-founder and CEO, Box Aaron Levie regularly dispenses startup advice on Twitter. But dozens of founders have also received his guidance — and his backing — firsthand. The cofounder and CEO of Box has been an angel investor for a decade, with over 40 investments and 16 exits, Crunchbase indicated. For instance, he’s participated in early funding rounds for companies such as Stripe, which reached a $95 billion valuation last year; Instacart, valued at $24 billion as of March; and Gusto, which hit a $10 billion valuation in August. Source: businessInsider