How we picked
Self-hosted CRM is a data-sovereignty decision first and a feature decision second. We prioritized true on-premise or private-cloud deployment, transparent licensing, customization depth, and the strength of the community or vendor support you'll rely on long after install. We also weighed how realistic ongoing maintenance is, because a CRM you can't keep patched is a liability, not an asset.
What to consider
- Best overall self-hosted CRM → SuiteCRM. Fully open-source, no license fees, and endlessly customizable — the default choice for teams that want complete ownership.
- Best open-source with on-premise option → Vtiger. A polished interface, sales and helpdesk modules, and a community edition you can run on your own hardware.
- Best self-hosted suite → Bitrix24. Its on-premise edition pairs CRM with tasks, chat, and document tools, giving you an entire workspace behind your own firewall.
- Best UK-hosted private option → OpenCRM. A privately hosted, fully managed CRM with strong data-residency assurances for organizations that want control without running servers.
- Best on-premise for Outlook teams → eWay-CRM. Lives inside Outlook and offers an on-premise edition, ideal for Microsoft-centric organizations that keep data in-house.
Pricing snapshot
SuiteCRM and Vtiger's community edition cost nothing to license — your spend is hosting plus optional support contracts. Bitrix24's self-hosted edition carries a one-time per-server fee, while OpenCRM and eWay-CRM use annual or per-user pricing for their managed and on-premise tiers. The honest budget for any of these includes server costs and the IT hours to keep them secure and updated.
Trial advice
Stand up a real instance before you commit, not just a hosted demo. Install it on a test server, import sample data, and have your IT lead walk through patching and backup. The right self-hosted CRM is one your team can actually maintain six months from now — so test the operational burden as hard as you test the features. Trial two and compare upkeep.