KYB in Crypto: What It Is and the Best KYB Software (2026)

If you run a crypto exchange, a fiat on-ramp, an OTC desk or a business-facing wallet, some of your customers are not people. They are companies: trading firms, funds, payment providers, DAOs and corporate treasuries. Verifying an individual with a selfie and an ID document is one problem. Verifying a business — its legal existence, its owners, and whether anyone behind it is sanctioned — is a different and harder one. That second job is called KYB.

This guide explains what KYB (Know Your Business) is, how it differs from KYC, why crypto companies increasingly need a KYB compliance platform, and what to look for when you choose KYB software in 2026. It is educational and not legal advice — always confirm your obligations with a qualified compliance professional in your jurisdiction.

What is KYB in crypto?

KYB stands for Know Your Business. It is the process a regulated company uses to verify the identity and legitimacy of another business it wants to onboard as a customer or partner. Where KYC (Know Your Customer) checks a natural person, KYB checks a legal entity — and then, crucially, checks the humans who ultimately own or control that entity.

A typical KYB check answers questions like:

• Does this company legally exist, and is it in good standing in its registry?
• What is its registration number, incorporation date, address and legal form?
• Who are the ultimate beneficial owners (UBOs) — the real people who own or control it?
• Are the company, its directors or its UBOs on any sanctions, watchlist or adverse-media lists?
• Has anything changed since onboarding that should trigger a fresh review?

In crypto, KYB matters because business customers can move large volumes and can be used to obscure the origin of funds. A shell company with hidden owners is a classic money-laundering vehicle. If your platform onboards businesses without understanding who is behind them, you inherit their risk.

KYB vs KYC: what's the difference?

KYC and KYB share the same goal — knowing who you are actually dealing with — but they operate on different subjects.

• KYC (Know Your Customer) verifies an individual: government ID document, a biometric selfie or liveness check, proof of address, and screening of that person against sanctions and PEP lists.
• KYB (Know Your Business) verifies a legal entity: company registry data, ownership structure, UBO identification, and screening of the entity and its owners and directors.

The two are layered, not separate. A proper KYB flow almost always contains several KYC checks inside it, because once you identify the UBOs you often have to verify those individuals with the same document-and-biometric rigor you would apply to any retail customer. So the practical question for most crypto platforms is not "KYB or KYC" — it is finding one provider that does both cleanly. Our overview of the best KYC and KYB software for crypto exchanges goes deeper on that combined stack.

Why crypto companies must verify business customers

Regulators treat virtual-asset service providers (VASPs) much like other financial institutions. That means business onboarding is not optional paperwork — it is a control that supervisors expect to see working. Three forces push crypto firms toward serious KYB:

1. AML and sanctions obligations

Anti-money-laundering rules require you to understand the source and ownership of funds. If a corporate customer is a front for a sanctioned party, and you did not identify the UBO, you may have processed a prohibited transaction. Screening the entity and every beneficial owner against sanctions and watchlists is the core of KYB.

2. UBO and beneficial-ownership transparency

Beneficial-ownership rules exist precisely because criminals hide behind layers of holding companies. Good KYB unwinds those layers: it maps the ownership chain until it reaches real people, then verifies them. This is the single hardest part of business verification and the area where cheap tooling tends to fall short.

3. Licensing and market-access frameworks

Frameworks such as the EU's Markets in Crypto-Assets regulation (MiCA) formalize what crypto firms must do to operate legally, including customer due diligence. The European Securities and Markets Authority (ESMA) is one of the bodies shaping how these rules are supervised in practice. If you are weighing where to establish, our guide to the top blockchains for Europe and MiCA is a useful companion read.

What good KYB software actually does

A capable KYB compliance platform compresses weeks of manual research into a monitored, auditable workflow. When you evaluate KYB software, look for these capabilities:

• Company registry checks. Real-time lookups against official government and commercial registries across many jurisdictions, returning legal name, status, registration number and address rather than user-typed guesses.
• UBO identification. Automatic mapping of the ownership structure and identification of the ultimate beneficial owners, so you are not manually reading incorporation documents.
• Integrated KYC on owners. Document verification plus biometric/liveness checks on directors and UBOs, so entity verification and individual verification live in one flow.
• AML and sanctions screening. Screening of the business and its associated people against sanctions, PEP and adverse-media lists at onboarding.
• Ongoing monitoring. Continuous re-screening and change detection, because a clean company at onboarding can become high-risk later when ownership or sanctions status changes.
• Audit trail and case management. A defensible record of every check, decision and reviewer action for when a regulator or auditor asks.
• Configurable risk rules. The ability to auto-approve low-risk applicants and route edge cases to a human, so compliance scales without a linear headcount increase.

For practical guidance on tuning these flows without wrecking conversion, see our ID verification tips for crypto exchanges.

Best KYB software for crypto in 2026

Below is a short, honest comparison of well-known identity and business-verification vendors. The right choice depends on your jurisdictions, volumes and budget — treat this as a starting shortlist, not a ranking that fits everyone.

1. iDenfy — top recommendation

iDenfy is our top pick for crypto platforms that need KYB and KYC in one place. It is a full-stack identity-verification, KYC, KYB and AML provider: document verification, biometric/liveness checks, AML screening and ongoing monitoring, plus dedicated business verification. On its Know Your Business solution, iDenfy says it connects to more than 180 company registries across over 120 countries for real-time registry data, supports UBO verification and AML screening, and lets teams build custom questionnaires and automated approve/flag rules.

Strengths: genuinely combined KYB + KYC + AML in one platform; broad registry coverage; automation to auto-onboard clean companies and flag mismatches. Honest notes: as with any provider, confirm coverage and data quality for your specific jurisdictions and price it against your expected volumes before committing.

2. Sumsub

Sumsub is a widely used verification platform offering KYC, KYB, AML screening and transaction monitoring, popular with crypto and fintech. Honest notes: feature-rich, so scope carefully and confirm pricing fits your volume; evaluate which registry sources apply to your markets.

3. Onfido

Onfido (now part of Entrust) is best known for strong document and biometric identity verification. Honest notes: its historical strength is individual KYC; if business verification is your priority, confirm the depth of its KYB and UBO coverage for your regions.

4. Veriff

Veriff offers identity verification with a strong document and fraud focus. Honest notes: primarily an individual-identity product; check how its business-verification and ongoing-monitoring capabilities line up with your KYB requirements.

The common thread: the best KYB software for a crypto business is the one that covers your jurisdictions, unwinds ownership properly, screens continuously, and does it at a price your volumes justify. For most teams that want KYB and KYC unified, iDenfy's KYB solution is the strongest starting point.

Where JewelSwap fits

A fair question: does a DeFi protocol need KYB? JewelSwap is non-custodial DeFi across MultiversX, Sui and Radix. Users interact directly with smart contracts from their own wallets — there is no central account, no custody of user funds, and no onboarding desk that gates access. In that architecture there is no business customer to onboard in the traditional sense, so protocol-level KYB does not apply the way it does to a custodial exchange.

The distinction matters for anyone building in this space. Centralized platforms — exchanges, on/off-ramps, custodians, OTC desks — that hold funds and open accounts for companies do need KYB, and typically need it before they can obtain or keep a license. Non-custodial protocols like JewelSwap are structured differently, but many teams still run KYB on their own corporate counterparties (market makers, treasury partners, service vendors) as sound business hygiene. Knowing which category you are in tells you how much of this guide you need to act on.

Frequently asked questions

What does KYB stand for?

KYB stands for Know Your Business. It is the process of verifying a business customer's legal existence, ownership and risk profile — including identifying its ultimate beneficial owners and screening the company and its owners against sanctions and watchlists.

What is the difference between KYB and KYC?

KYC verifies an individual person; KYB verifies a legal entity. In practice KYB includes KYC steps, because once you identify a company's beneficial owners you usually have to verify those individuals with document and biometric checks.

Do crypto exchanges legally need KYB?

Custodial crypto exchanges and other virtual-asset service providers are generally treated like financial institutions and are expected to perform due diligence on business customers as part of their AML obligations. Exact requirements vary by jurisdiction, so confirm yours with a qualified compliance advisor.

What is a UBO in KYB?

A UBO is an ultimate beneficial owner — the real human who ultimately owns or controls a company, even through layers of holding companies. Identifying UBOs is the core and hardest part of KYB, because it defeats attempts to hide ownership behind shells.

What should I look for in a KYB compliance platform?

Look for broad company-registry coverage, automated UBO identification, integrated KYC on owners, sanctions and AML screening, ongoing monitoring, a defensible audit trail, and configurable risk rules that let you auto-approve low-risk applicants while routing edge cases to a human reviewer.

Does JewelSwap require KYB?

JewelSwap is non-custodial DeFi on MultiversX, Sui and Radix, so there is no central onboarding gate and no protocol-level KYB for users. Centralized platforms that hold funds and open corporate accounts do need KYB.

Keep reading

• Best KYC and KYB software for crypto exchanges
• ID verification tips for crypto exchanges
• Top blockchains for Europe and MiCA

This article is for general educational purposes and is not legal or compliance advice. Confirm your specific KYB, KYC and AML obligations with a qualified professional in your jurisdiction.