Switching IT provider without disruption

Changing IT provider is a common decision: the company has grown, its needs have changed, or the relationship no longer meets expectations. With proper preparation, the switch keeps disruption for your teams to a minimum.

The principle is simple: first recover what belongs to you, then organize the transfer, and only remove the old setup once the new one has been verified.

Check your current contract

• Term and notice period: the date on which you can terminate sets the timeline.
• Handover obligations: documentation, access, data.
• Hardware: what you bought and paid for belongs to you; what is leased must be returned or bought out.
• Licenses: those purchased through the provider (Microsoft 365 in particular) can usually be transferred, but annual commitments in progress remain payable until their term: check the dates and plan the transfer accordingly.

Recover what belongs to you

• The domain name and access to the DNS zone, at the registrar.
• A global administrator account for the Microsoft 365 tenant, in your name.
• Administrator access to the firewall, Wi-Fi, servers and business applications.
• The documentation: network diagram, inventory, procedures, passwords.
• An export of your backed-up data, and the date until which the history remains available.
• Carrier contracts (internet, telephony) and their reference numbers.

Organize the transfer

The new provider starts with an assessment: it documents the existing environment, checks access and identifies risks. A transition plan then sets the order of operations and an overlap period during which both setups run side by side.

Monitoring, endpoint protection and backup tools are replaced one at a time: the new tool is installed and verified before the old one is removed, so that no computer is left unprotected. Plan this replacement before the current contract ends: at the end, the old provider deactivates its tools within a short period.

Classic pitfalls

• Removing the old provider's antivirus or EDR before the new one is active.
• Forgetting the backup history: you need to know how long the old storage remains accessible.
• Discovering, at the last minute, licenses or subscriptions held in the provider's name.
• Not telling staff about the new support channel.

Stay on good terms with the old provider

A clear, dated written request makes the handover easier. Your old provider knows your environment: its cooperation during the transition helps everyone, and a switch handled properly keeps the relationship intact.