Impossible Cloud The European alternative to Amazon S3
SubmittedS3-compatible object storage from Hamburg with its own infrastructure stack
About Impossible Cloud
Impossible Cloud runs S3-compatible object storage on its own vertically integrated technology stack without external subprocessors. Customers can restrict their data to European regions. Unlike Amazon S3, the service bills without egress or API fees.
Highlights
- ✓ Full compatibility with the Amazon S3 API
- ✓ Object Lock (WORM) and versioning
- ✓ Own technology stack without external subprocessors
- ✓ No fees for egress or API calls
- ✓ ISO 27001 certified
Why European?
- → German company based in Hamburg under EU data protection law
- → European region selectable, data stays in Europe
- → Own infrastructure stack instead of AWS, Google Cloud or Azure
- → ISO 27001 certified and GDPR compliant
Pricing
Pay-as-you-go EUR 7.99 per TB/month, without egress or API fees. Free trial.
Frequently asked questions about Impossible Cloud
What is Impossible Cloud and what is it used for? +
Impossible Cloud is a provider of S3-compatible object storage operated by Impossible Cloud GmbH, based in Hamburg and founded in 2021. The service targets companies that need to store large volumes of data such as backups, media or archives. Existing software connects through the Amazon S3 API without modification. Billing is based on storage used, with egress and API calls included in the price.
Does Impossible Cloud run on European infrastructure? +
Impossible Cloud operates its own vertically integrated technology stack and states that it does not rely on external subprocessors. It uses neither AWS nor Google Cloud or Microsoft Azure. Data centers exist in Europe and the United States, but customers can restrict their data to European regions. The company is ISO 27001 certified and headquartered in Hamburg.
How does migration from Amazon S3 to Impossible Cloud work? +
Because Impossible Cloud fully supports the Amazon S3 API, existing S3 clients, SDKs and tools can be reused by changing the endpoint. The provider offers migration support. Features such as Object Lock for immutable storage and versioning are available. Backup and archiving workflows can therefore usually be adopted without rework.
Try Impossible Cloud
S3-compatible object storage from Hamburg with its own infrastructure stack
Visit Impossible Cloud Website →
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Entry verified on 16.07.2026