70 Companies You Didn't Know Were Using Rails in 2025

For twenty-two years, thoughtbot has helped companies and organizations of all sizes build maintainable, scalable, and useful software. While Ruby on Rails is often associated with startups and MVPs, it’s also been quietly powering major systems inside some of the world’s largest companies. From financial institutions to global retailers and healthcare companies, Rails is still being chosen in 2025 for the same reasons it always has, speed, clarity, and scalability. Here are 70 companies, many of these our clients, who you might not expect to be using Rails and why it was the right choice for them.