What 37signals’ Cloud Repatriation Taught Us About AI Infrastructure

In 2023, 37signals announced that it had completely left the public cloud and followed up by publicly documenting its cloud repatriation process, providing one of the clearest real-world examples of on-premises economics at scale. By reversing its cloud migration and shifting workloads to private cloud infrastructure, the company drastically reduced its annual cloud infrastructure spend by almost $2M. The transparency of the numbers made the case compelling. In 2022, 37signals spent $3,201,564 on cloud services, which is about $266,797 per month.