Know who is behind a UK company before you deal with it.
A planned check for know your business (KYB) work. Send a company number or name and get a summary of the company, who controls it as far as the UK register shows, and anything that deserves a closer look, with a dated source for every fact.
Not yet available. Register your interest and we will tell you when early access opens. Early access will cover UK registered companies only.
Why teams will choose it
A quick first look
Confirm a company exists and is active in moments, before you spend time on it.
Flags with reasons
Anything that needs a closer look comes with a plain reason, so your team can decide.
Evidence for every item
Each fact shows where it came from and when we retrieved it.
What the check will return
Company status
Whether the company is active, when it was incorporated, its registered office and its filing history.
Corporate controllers
The chain of companies that control it, as far as the UK register shows.
Flags with plain reasons
The check says clear or review. It does not tell you to accept or reject a customer.
Dated sources
The source and retrieval date for each item.
Energy holdings
For energy counterparties, the renewable and storage projects the company's group holds or has applied for.
Who is it for?
Accountants, lenders and platforms
Onboard UK business customers and suppliers with a sourced first check.
Energy developers
Check a landowner company or an offtaker before you sign an option or a power purchase agreement.
How it will work
Send a company
A company number or a name.
We check the register
Status, controllers and anything unusual.
You decide
A summary with sources, for your own team to act on.
Good to know
- UK registered companies only. Ownership chains that leave the UK stop where the UK register stops.
- Ownership comes from information that companies file about themselves. We report what the register says and do not verify it.
- No credit scores, politically exposed persons screening or adverse media.
- It is a screening aid. It does not decide whether you meet your own legal duties.
Questions about UK company check
What is a KYB check?
KYB means know your business: checking that a company is real, who stands behind it and whether anything should make you look closer before you deal with it. This service supports that check. It does not make you compliant on its own.
Is the UK company check available now?
No. It is planned. Early access will start with a small group of named users.
Does it work for companies outside the UK?
No. Early access covers companies registered in the UK only.
Does it tell us whether to accept a customer?
No. It returns flags, reasons and evidence for your own team to decide.
Can I see where each fact came from?
Yes. Every item will show its source and the date we retrieved it.
Will it show me who owns the company?
It will show the chain of corporate owners recorded with Companies House. Individual owners are not shown in the current design.
Want to hear when early access opens?
Tell us what you check, how often and what you need to see in the result. It shapes what we build first.
Register your interest →Prefer email? Write to hello@arithim.com.