What is KYB? Know Your Business verification explained

Know Your Business (KYB) is the process of establishing who a company actually is before you trade with it, lend to it, onboard it as a supplier or process payments on its behalf. Where KYC verifies a natural person, KYB verifies a legal entity — and a legal entity can be dissolved, renamed, re-registered in another country, or owned through several layers of holding companies that no single document reveals.

What a KYB check establishes

A complete KYB file answers five questions. Does the entity exist and is it active in its home registry? What is its legal form, registration number and registered address? Who are its directors and officers? Who ultimately owns and controls it? And is the entity, its owners or its officers subject to sanctions, adverse media or disqualification? Anything less is identity theatre — a name matched against a form.

KYB and KYC are not the same control

KYC verifies an individual against identity documents and biometrics. KYB verifies an organisation against registry filings, corporate documents and ownership records — and then falls back on KYC for the individuals behind it. A business relationship needs both: the company as a counterparty, and the humans who control it.

Where the data comes from

Primary evidence is the official company registry in the entity's jurisdiction, supplemented by beneficial-ownership registers where they exist, statutory financial filings, insolvency and charge registers, court records, sanctions and PEP lists, and adverse media. Coverage, update frequency and even the definition of 'active' differ by country, which is why cross-border onboarding is where most KYB programmes are weakest.

Why regulated firms are required to do it

Under the EU's anti-money-laundering framework, obliged entities must apply customer due diligence to corporate customers, identify their beneficial owners, understand the purpose of the relationship and keep the information current. Similar duties apply in the UK and most other financial centres. In practice the requirement is not a one-off check at onboarding but an ongoing obligation to keep the record accurate.

Onboarding is a moment; risk is continuous

Ownership changes, directors resign, companies are struck off, sanctions are imposed. A KYB file verified at onboarding and never revisited becomes inaccurate quietly and without notice. Continuous monitoring — re-checking the registry, ownership and screening data and alerting on change — is what converts a compliance record into a working control.

A practical KYB sequence

Identify the entity in its home registry; confirm status, form and address; retrieve directors and shareholders; resolve ownership up to the ultimate beneficial owners; screen the entity and every identified person against sanctions, PEP and adverse-media data; record the evidence and its date; then place the entity under monitoring so the next change reaches you as an alert rather than as a surprise.

— RisQo Research Team, Infocredit Group