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The best French hosting providers for a B2B SaaS in 2026

Before signing, your B2B customers want to know where their data will be, and who will be able to touch it. Here are the French hosting providers that answer those questions, and what each one allows when your AI agent is the one deploying.

By Grégoire Mougeolle, co-founder of Nextmap. Facts checked on November 5, 2026. How this comparison is made.

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The right choice depends on your app

  • Do your customers entrust you with health data? Choose Scalingo: it offers health data hosting1.
  • Does each branch need its own full copy of production, database included? Choose Upsun: it clones production for every branch2.
  • Do your customers ask for an audit log, and for their data in France? Choose while: every action on production is recorded in a signed audit log, which the Enterprise plan keeps for 7 years.

Try while on your app, without an account. Copy the instructions

The comparison

HostIn FranceThe company behind itYour AI agentTo get started
ScalingoYes3French, in Strasbourg4No official MCP server: the command line€7.20 for the container and €7.20 for the database, per month5
Clever CloudYes, by default6French, in Nantes7A local MCP server, still young8From €4.50 for the app9, and the database free on DEV, then €4.9010, per month
UpsunYes, two regions11French, formerly Platform.sh12An MCP server in beta, read-only by default13First project and first user free, with conditions. Beyond that, €9 per project and €10 per user, per month, plus resources14
whileYesFrench, NextmapAn MCP server with OAuth: sensitive actions wait for your approval€0 to get started, then €13.75 per month for an app and its database

Scalingo, built for compliance

Scalingo is built for compliance, with ISO 27001 and health data hosting, and it responds to critical incidents in under 15 minutes on average1.

Clever Cloud, in France by default

Clever Cloud runs your apps in France by default6, in many languages.

Upsun, production cloned for every branch

Upsun, formerly Platform.sh, clones all of production for every branch, database included2.

while, your SaaS in France, deployed by your agent

Your AI agent deploys your SaaS over MCP, and everything runs in France, with Nextmap, a French company. Sensitive actions, like deleting a production database, wait for your approval, every action is recorded in a signed audit log, and your keys stay out of your agent’s reach. With the Enterprise plan, this log is kept for 7 years and goes to your SIEM: enough to answer your customers’ security questionnaires.

What while’s contract says about your data

Your customers will ask for your host’s data processing agreement. while’s is annexed to its terms, as article 28 of the GDPR requires15,16:

  • you are the controller, and Nextmap, which makes while, is your processor;
  • your data is hosted in France; one of Nextmap’s subprocessors may process it in another country of the European Union, and it only leaves the Union in compliance with the GDPR, after you have been informed;
  • every new subprocessor is announced to you by email 15 days in advance: you can object, and terminate at no cost if Nextmap keeps it;
  • a data breach is notified to you without undue delay, by email;
  • you can audit while, first on documents, then on site once a year, at your expense, with 30 days’ notice;
  • at the end of the contract, you get your data back, then Nextmap erases it, backups included.

while does not accept health data: for that, choose Scalingo1.

Next steps

Sources

  1. Scalingo, home page, accessed November 2, 2026
  2. Upsun, platform overview (llms.txt), accessed November 2, 2026
  3. Scalingo, regions, accessed November 2, 2026
  4. Scalingo, the company (footer), accessed November 2, 2026
  5. Scalingo, pricing, accessed November 2, 2026
  6. Clever Cloud, application regions, accessed November 2, 2026
  7. Clever Cloud, the MCP server (mcp-simple-server), accessed November 2, 2026
  8. Clever Cloud, Node.js application pricing, accessed November 2, 2026
  9. Clever Cloud, PostgreSQL pricing, accessed November 2, 2026
  10. Upsun, regions, accessed November 2, 2026
  11. Upsun, the MCP server, accessed November 2, 2026
  12. Upsun, pricing, accessed November 2, 2026
  13. while, the terms and their data processing agreement (annex 1), accessed November 5, 2026
  14. The GDPR, Regulation (EU) 2016/679, article 28, accessed November 5, 2026

Questions

Is hosting in France enough for GDPR?

It’s part of the answer: GDPR covers all of your data processing. But hosting in France, with a French provider, is often the first question your B2B customers ask.

What can I show a customer who sends a security questionnaire?

On while, the signed audit log of every action on production, and with the Enterprise plan, its export to your SIEM and its retention for 7 years.

Which ones are French?

All four: Scalingo, Clever Cloud, Upsun and while, made by Nextmap.

Connect your agent, it takes care of the rest

To paste into your agent

Read while.sh/agents, then deploy my app with while.

Copy the instructions

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A project for your company? Talk to the team: hello@while.sh