Built by Eveleone LTD — a small team that got tired of paying for eight subscriptions just to run a business.
Every business we worked with had the same problem: their data was scattered across Google Drive, Microsoft 365, ChatGPT Teams, DocuSign, 1Password, Notion, and three other SaaS tools — each with its own login, its own subscription, and its own cloud server you had no control over.
We built Citadel to fix that. One workspace. One server. Your server. Everything included from day one — files, documents, AI assistant, PDF tools, signatures, passwords, wiki, and accounting. No per-user upsells. No hidden tiers.
We deploy on infrastructure you own. Your documents never touch our servers.
No add-on modules, no per-seat surprises. All 10 modules in every plan.
Hetzner Frankfurt. GDPR compliant by design. Never leaves the EU.
We're a small team. We don't take on more clients than we can serve well.
Eveleone LTD is registered in Cyprus, European Union. We build B2B software for small and medium businesses that take data ownership seriously.
For any questions: hello@citadel.eu