37signals starts moving its S3 storage out and plans to delete its AWS account

2025-05-07 · Publisher : 37signals · Domain : Cloud & DevOps

David Heinemeier Hansson announces 37signals' migration out of Amazon S3 to its own Pure Storage arrays: AWS waives USD 250,000 of egress fees and the AWS account is to be deleted over the summer.

### What changes On 7 May 2025, David Heinemeier Hansson (DHH), CTO of 37signals (Basecamp, HEY), announces on LinkedIn that migration of the company's data out of **Amazon S3** is about to start. The data will go to Pure Storage arrays hosted in the company's two data centres. AWS agreed to waive about USD 250,000 of data egress fees. 37signals plans to delete its AWS account over the summer, and say goodbye to an S3 storage bill of about USD 1.5 million a year. The company had already repatriated its compute workloads in 2022 and 2023. ### Key facts - Storage: about 18 petabytes of Pure Storage capacity, bought for about USD 1.5 million. - Announced cost: less than USD 200,000 a year to run these arrays, versus about USD 1.5 million a year for S3. - Egress fees: about USD 250,000 covered by AWS, after a long approval. - Infrastructure bill: from USD 3.2 million a year before leaving the cloud to "well under a million" per DHH, with no hiring. - Earlier result: after USD 700,000 of Dell servers, the cloud bill had fallen by about USD 2 million a year (result published in 2024). ### Why it matters A widely publicized case of cloud repatriation, with precise figures and a decision-maker who owns his position. It also shows the conditions of success: a stable, predictable workload, a capable operations team and egress fees waived by AWS. For IT departments, it is a comparison point for public cloud, hosting and on-premises trade-offs, not a general rule: not every customer has this profile. ### Takeaway Storage repatriation completes 37signals' exit from AWS, with announced savings of several million dollars.

Tags : Cloud, AWS, FinOps, Datacenter, États-Unis