01
Win the right work
From first click to signed customer. No handover.
Your website, CRM, inbox and campaigns share one customer record. Every conversation has context, and every next step is ready.
The UK-first Business
Operating System
One system for customers, work, money, people and compliance. Tell Yion what you want done—it operates the journey while you stay in control.
No card required Built for UK businesses
01 / 03Tell Yion the outcome
One request moves through the whole business.
One request. One continuous result. No stitching between tools.
Trusted by
UK founders
CRMAccountingPayrollProjectsMarketingCompliance One YionStack
One business. One source of truth.
Every part knows what
the other parts are doing.
A customer is never copied. A payment is never detached from its work. A deadline is never somebody else’s problem.
02
Deliver without drift
The promise becomes the plan automatically.
A won deal can become the project, booking, documents and team work—without copying details between tools.
03
Money that closes the loop
Get paid. Reconcile. Stay ready for tax.
Quotes, invoices, payments, banking and the ledger remain one continuous record, so obligations are created from the same truth.
Meet your AI operator
Yion doesn’t give you
more work to do.
It does the work across the system, checks the outcome and comes back only when your judgement is needed.
1Observe2Decide3Act4Verify5Correct
Yion · AI operator
Ready when you are
UK isn’t a setting. It’s the foundation.
Built around how
British businesses operate.
HMRC-ready flows
VAT, payroll records and the ledger are part of the same operating chain.
Companies House aware
Statutory dates and evidence stay visible beside the business activity that creates them.
Governed by design
Permissions, approval policies and audit trails keep Yion’s actions controlled and reviewable.
One accountable record
No competing copies of customers, invoices or obligations across separate apps.
“The owner should not need to understand how the software works. They should say what they want, watch it happen, and approve what matters.”
The principle behind YionStackOne business. One transparent bill.
Replace the stack without inheriting its price.
Straight answers
Before you move your business.
Still deciding whether one operating system can replace your current stack?
Talk to usNo. YionStack is one operating system with one source of truth. Customers, money, work, people and compliance do not live in separate products that need syncing.
Your business can feel like one business again.