What makes some companies survive the test of time while others struggle and perish? Corporations do not exist in isolation; they are always part of something else, something bigger-an ecosystem. Inspired by the secrets of shinise (Japanese companies dating back to the time of samurais), R. Gopalakrishnan and R. Narayanan take a deep dive into the art of growing and sustaining a business. Over the forty-eight years of his close association with Unilever and Tata, Gopalakrishnan has gathered experiences and know-how about what makes companies tick, while Narayanan, having worked with Coca-Cola, Nestlé and then two start-ups of his own, has developed keen insights about angel investing and mentoring. Wisdom for Start-ups from Grown-ups is the culmination of their collaborative effort to bring the best of what grown-ups have to offer to start-ups, presented in the form of all-important lessons.