What is KYB? Verifying a business before you onboard it
KYB, or Know Your Business, is the set of checks a company runs before it works with, onboards or pays another company. The goal is simple: confirm that the business exists, that it is active, and that the people presenting it are connected to it.
For platforms that move money, the cost of skipping this step is not theoretical. Fake vendors, shell companies and typo-squatted "suppliers" show up at onboarding, and the first time you notice is often the first payout, refund dispute or chargeback. This guide explains what to verify, how data-based checks differ from document review, and where each belongs in the process.
What KYB actually covers
A complete KYB process answers five questions about the entity:
- Existence. Is there a registered business behind this name, or is it only a website?
- Control. Who are the directors, beneficial owners and authorised signatories?
- Contactability. Does the company have working mail infrastructure and a reachable address?
- Activity. Does it show consistent signs of operating: records, press, directories, web presence?
- Risk. Does it appear on sanctions, watchlists or adverse media, and does it match the profile it claims?
Answering the contactability and activity questions is where data-based checks create most of the leverage, because they can be automated at the moment of signup rather than queued for an analyst.
KYB is not KYC
The two are related but distinct. KYC verifies individuals: name, document, sometimes biometrics. KYB verifies legal entities and the people behind them. When you onboard a business you generally need both: KYB for the company and KYC for its directors or beneficial owners.
A common failure is to run an individual check on a company name and treat the result as KYB. It is not. A company can exist without the individual who signed up having any authority to represent it.
Two ways to do KYB: documents and data
| Document review | Data-based KYB | |
|---|---|---|
| Speed | Days per company | Under a second |
| Coverage | Jurisdiction-dependent | Any company with a web footprint |
| Evidence | Uploaded files | Sources returned with every signal |
| Best for | Regulated, final decision | Filtering, prioritising, monitoring |
| Cost | Per report, analyst time | Per lookup, free misses |
The two are not competitors. Document review is the final decision in regulated activity. Data-based checks are the layer in front of it, so manual work is spent only on companies that survived the first filter.
What a data-based check looks at
- Domain age and DNS. A "logistics company" whose domain was registered twelve days ago is a conversation starter, not a buyer.
- Mail servers. Real companies receive email. Domains without working MX records are a classic mask for cold-contact fronts.
- Registry and press traces. Incorporation mentions, directories and news. Shells leave gaps where real companies leave records.
- People behind the domain. Links the business to actual decision-makers, so person and company checks reinforce each other.
- Consistency. Does the claimed industry, size and location match what the web shows?
How to implement it
A practical integration starts with one call on the domain or email collected at signup, and returns structured signals with sources:
From there you can branch: clear pass, pass with a flag for review, or reject. The important part is that every decision carries its evidence, so auditors can see why a company was accepted or stopped.
See yute KYB for the signal list and the API, and signup fraud signals for the individual-level counterpart.
Frequently asked questions
What does KYB stand for?
Know Your Business. It is the set of checks a company runs to confirm that a business it is about to work with, onboard or pay actually exists, is active, and is controlled by the people who claim to own it.
What is the difference between KYB and KYC?
KYC verifies individuals; KYB verifies legal entities and the people behind them. Onboarding a business usually needs both.
Does data-based KYB replace document review?
No. It filters obvious fakes at signup and tells you where to focus. Document review and registry filings remain necessary in regulated activity.
How fast can KYB checks run?
A data-based check on a company domain can return in under a second, against days per company for manual processes.