Cloudflare

Cloudflare has quietly become one of the most important infrastructure companies on the internet — its network spans 330 cities in 120+ countries and handles approximately 20% of all internet traffic, protecting it from DDoS attacks and optimizing performance. Its Workers platform (serverless edge computing deployed in 335+ locations) and AI Gateway product position it as the infrastructure layer for AI application deployment. Cloudflare generated $1.7B in annual revenue in 2025 growing 28% year-over-year, with 215,000+ paying customers. The company's mission to "help build a better internet" has made it the security provider of choice for everything from small websites to the world's largest financial institutions. The IPO story is covered in the book 'The Cloudflare Story'.