So, thinking about what has led to the success of these companies is a brilliant business innovation. Selling to enterprise is hard; mature businesses are bureaucratic and slow, and don't like unnecessary risk. Selling to startups is also hard, except that they hate friction and bureaucracy. So if you can create a frictionless product that solves a real problem, selling to startups becomes simple. Stripe and Slack are much like venture capital firms: by focusing on startups, they let power law do the heavy lifting, and by embedding themselves with these startups, they create switching costs and extract huge profits from the startups that scale and become mature public companies. Slack was acquired for 27 billion by Salesforce, and Stripe is still private, worth 160 billion. Hence, they are able to continue to grow because as long as startups keep growing, they will too.