Our featured pick is STRG (Austria), S3-compatible storage at $6.80 per TB a month with no egress or API request fees and a built-in AI assistant. The best European object storage overall is OVHcloud Object Storage (France), with S3-style storage classes from NVMe to tape and no fees for egress or API requests. For a full European cloud around your buckets, choose Scaleway (France); for the lowest price from a German company, Hetzner Object Storage at €6.49 a month for 1 TB.
This is the overview of every S3-compatible object storage service from the EU and Switzerland that I would recommend, with one line on who each one is for. If you are leaving a specific service, the deeper comparison is in Best European alternatives to Amazon S3. All prices and facts were checked on the providers' own pages on 25 October 2026 and exclude VAT.
European object storage providers compared
| Tool | HQ | Data hosted in | From | Free plan | Open source | Best for |
|---|---|---|---|---|---|---|
| 1. STRG | Austria · EU | Amsterdam (EU) and US regions · STRG | $6.80 / TB-month (excl. VAT) | Yes | No | zero-egress S3 storage with AI tooling |
| 2. OVHcloud Object Storage | France · EU | France and EU regions · OVHcloud | ≈ €0.0071 / GiB-month (excl. VAT) | No | No | S3 tiers without egress fees |
| 3. Scaleway Object Storage | France · EU | France, Netherlands, Poland, Italy · Scaleway | €0.00254 / GB-month (Glacier, excl. tax) | Trial only | No | Full European cloud stack |
| 4. Exoscale Object Storage | Switzerland · EFTA | CH, DE, AT, BG, HR · Exoscale | ≈ €0.020 / GiB-month (excl. VAT) | No | No | Country-level data residency |
| 5. IONOS Cloud Object Storage | Germany · EU | Germany, Spain (also USA) · IONOS | €0.007 / GB per 30 days | Trial only | No | Cheap German S3 storage |
| 6. STACKIT Object Storage | Germany · EU | Germany and Austria · STACKIT | €0.03 / GB-month (excl. VAT) | No | No | Regulated enterprises (BSI C5) |
| 7. Hetzner Object Storage | Germany · EU | Germany and Finland · Hetzner | €6.49 / month incl. 1 TB (excl. VAT) | No | No | Cheap buckets on a budget |
| 8. Infomaniak Object Storage | Switzerland · EFTA | Switzerland · Infomaniak | €0.000013 / GB-hour (excl. VAT) | No | No | Swiss storage, free egress |
| 9. Impossible Cloud Storage | Germany · EU | Europe · partner data centres (not named) | €7.99 / TB-month | Trial only | No | Backups without egress fees |
| 10. UpCloud Managed Object Storage | Finland · EU | Finland, Sweden, Germany · UpCloud | €5 / month (250 GB) | No | No | Small buckets, flat price |
Prices from public pricing pages. Affiliate links and sponsored placements are labelled.
Prices from public pricing pages. Affiliate links and sponsored placements are labelled.
How I chose the best European object storage
I compared eleven S3-compatible object storage services from companies registered in the EU or Switzerland and kept ten. Each one was checked on the same five points: S3 feature match (storage classes, multi-zone buckets, versioning, Object Lock, lifecycle rules, encryption), jurisdiction and ownership including where the S3 endpoint runs, storage price per TB-month, egress and request fees, and user ratings on Trustpilot. Contabo was left out because its page documents far fewer S3 features; US services such as Wasabi, Backblaze B2 and Cloudflare R2 are not eligible.
The best European object storage providers
1. STRG – best for zero-egress S3 storage with AI tooling
Vienna-based S3-compatible object storage with European data hosted in Amsterdam and additional regions in the US. Flat $6.80 per TB a month, no egress fees and no charges for supported S3 API requests, plus a free plan with 10 GB of storage to test it, so costs for backups, application storage, media hosting, archiving and AI workloads are easy to forecast. Works with existing S3 SDKs, APIs and tools. What sets it apart is the AI layer: a built-in assistant creates buckets, manages access keys and sets up integrations in natural language, and an MCP server gives AI agents permission-controlled access to your storage. Visit STRG →
2. OVHcloud Object Storage – best overall
French, founded in 1999, with three-zone buckets in Paris and Milan and classes from High Performance to tape-based Cold Archive. Egress and API requests are free, and three-zone storage costs about €0.014 per GiB a month. OVHcloud Object Storage review →
3. Scaleway Object Storage – best full European cloud
Paris-based iliad Group subsidiary with Multi-AZ, One Zone and Glacier classes in Paris, Amsterdam, Warsaw and Milan. Requests are free, egress costs €0.01 per GB after 75 GB a month. Full review →
4. Exoscale Object Storage – best for data residency
Swiss, with eight zones in five countries and data that stays in the zone's country, plus cross-zone replication. About €20 per TiB a month and €0.02 per GiB egress. Full review →
5. IONOS Cloud Object Storage – best German all-rounder
Montabaur-based, €0.007 per GB a month, free API requests and 2 TB of free egress a month. One storage class only. Full review →
6. STACKIT Object Storage – best for regulated enterprises
The Schwarz Group's cloud with data centres only in Germany and Austria and a BSI C5 Type 2 attestation. About €0.03 per GB a month. Full review →
7. Hetzner Object Storage – best on a budget
German, €6.49 a month including 1 TB of storage and 1 TB of egress, extra traffic €1 per TB. Limited to 100 buckets of up to 100 TB. Full review →
8. Infomaniak Object Storage – best for Swiss hosting
Swiss public-cloud storage at about €0.0095 per GB a month with 10 TB of free egress every month. Few S3 features documented. Full review →
9. Impossible Cloud Storage – best for backups
Hamburg-based, €7.99 per TB a month with no egress or API fees and a 30-day trial without a card. Storage only. Full review →
10. UpCloud Managed Object Storage – best for small buckets
Finnish, €5 a month per 250 GB with egress included, in Helsinki, Stockholm and Frankfurt. Expensive at scale. Full review →
European object storage: FAQ
Which object storage providers are based in the EU?
STRG (Austria), OVHcloud and Scaleway (France), IONOS, STACKIT, Hetzner and Impossible Cloud (Germany) and UpCloud (Finland). Exoscale and Infomaniak are Swiss, outside the EU but in the EFTA.
Which European object storage is the cheapest?
Hetzner (about €6.50 per TB a month) and IONOS (€7 per TB) for storage. For egress, STRG, OVHcloud, Impossible Cloud and UpCloud charge nothing.
Are European object storage services S3-compatible?
Yes, every provider in this list offers an S3-compatible API, so you can keep using the AWS CLI, AWS SDKs or rclone by changing the endpoint and keys.
My verdict
Pick OVHcloud Object Storage if you want S3-style tiers without egress bills, Scaleway if you want a whole European cloud around your buckets, and Hetzner or IONOS if you want the lowest price per TB from a German provider. STRG is the one to try if you want flat per-TB pricing with zero egress and AI-assisted management.
Key numbers
- 15%Share of Europe's cloud market held by European providers – down from 29% in 2017Source: Synergy Research Group, July 2025
- 70%Share of the European cloud market held by Amazon, Microsoft and Google togetherSource: Synergy Research Group, July 2025
- €61 bnSize of the European cloud market in 2024Source: Synergy Research Group, July 2025
Changelog · Oct 2026: first version, 9 services