About YionStack
YionStack is the UK-first Business Operating System powered by Yion — your intelligent operating network. It doesn't just store data. It runs the business.
Our story
“Businesses don't fail because they lack tools. They fail because their tools don't work together — and no system is actually running the business.”
Most companies operate across CRM in one place, accounting in another, communication somewhere else. Data is fragmented, actions are manual, decisions are delayed. Despite all the software, nothing is truly in control.
We created Yion — Your Intelligent Operating Network. Not another tool, not another dashboard, but a system that actually runs a business.
A connected network of modules, data and intelligence working as a single operating layer. Finance, CRM, HR, marketing, operations — every part lives inside one coordinated system. Not integrated after the fact. Built together from the start.
Traditional platforms help you record what happened. Yion is built to take action.
Yion observes, decides and prepares actions — drafting messages, flagging risks, moving workflows forward, then asking for approval like a professional operator would.
One database. One login. One flow of data. AI as a core layer, not an add-on. No duplication, no fragmentation, no missed signals.
What we believe
Invoicing, CRM, payroll, projects, AI operator — same database, same audit log, same permissions model. No glue, no double-entry, no exports.
HMRC, Companies House, DBS and the awarding bodies are first-class — not behind an integration. UK-shaped means you stop fighting your tools.
YionAI drafts the work, surfaces the trade-offs, and waits for your approval. We don't believe in agentic systems that go rogue inside a business.
From the founder
Founder & director
Yiontech LTD
hello@yionstack.co.ukMost UK SMEs run on five or six tools that don't know about each other.
The accountant tracks invoices in one app, the sales lead drops contacts into another, the founder fills in HMRC by hand, and an ever-growing pile of CSV files sits between them.
YionStack is what happens when a single team designs the whole stack together — every module knowing about every other module, with an AI operator that drafts the work and asks before it sends. We are early. The point is to be unmistakably first-class on the UK-specific details: HMRC MTD, Companies House, DBS, RTI payroll, the awarding bodies, the procurement language councils actually use.
If you want to be early with us, the door is open.
Founder, partner, future hire, regulator, journalist — pick the one that fits. We answer the email.