Best KYB Software & KYB Providers for Crypto (2026): 6 Compared

Last updated: 7 October 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 leads with the best KYB software for crypto in 2026, then explains the mechanics you need in order to judge those tools properly: how the verification process runs step by step, how KYB differs from KYC, and the part that defeats most teams — identifying the ultimate beneficial owner. It is educational and not legal advice — confirm your obligations with a qualified compliance professional in your jurisdiction. If you are verifying individuals rather than businesses, start with our guide to MiCA identity verification and the best KYC providers instead.

Best KYB software for crypto in 2026

The KYB market splits into two camps: all-in-one platforms that do KYB, KYC and AML screening together, and registry-data specialists that go deeper on company records and beneficial ownership but leave individual verification to someone else. Which camp you want depends on whether you are also onboarding individuals, and how exotic your jurisdictions are.

The right choice depends on your jurisdictions, volumes and budget — treat this as a starting point, not a ranking that fits everyone. Capability claims below are the vendors' own; verify coverage for your specific markets before you commit.

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 and 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.

The reason it tops this list rather than merely appearing on it is scope per contract. KYB is rarely a standalone need: once you unwind an ownership structure you have to run individual KYC on every UBO you surface, then screen all of them continuously. Vendors that only do the entity half leave you integrating a second provider for the people half and reconciling two audit trails. iDenfy closes that loop in one platform, and its pay-per-approved-verification pricing means the individual checks that KYB generates are only billed when they succeed — which matters when a single corporate client can produce half a dozen UBO verifications.

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 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. Its business-verification product automates ownership discovery through corporate hierarchies and checks against a broad set of registry sources, and its workflow builder lets compliance teams route corporate cases by risk rather than treating every company the same. Honest notes: feature-rich, so scope carefully and confirm pricing fits your volume; evaluate which registry sources actually apply to your markets.

3. Trulioo

Trulioo is a business-verification specialist with one of the deepest global footprints, covering entity verification across a very wide range of jurisdictions and layering in UBO discovery. It is the option to look at when your corporate customers are spread across many countries and the long tail of registries is where your onboarding keeps failing. Honest notes: depth varies by country, and coverage claims are worth testing against your own hardest cases before signing.

4. GBG

GBG brings deep identity and location-verification data plus fraud capability drawn from extensive data partnerships, with solid business-verification coverage in mature markets. Exchanges often pair it with an all-in-one identity platform rather than using it as the single system of record. Honest notes: strongest where its data partnerships are strongest; confirm emerging-market coverage separately.

5. Middesk

Middesk focuses on US business verification, pulling Secretary of State registration data, tax identifiers and business-status signals. If your corporate customers are overwhelmingly US entities, a US-specialised provider will usually beat a generalist on data freshness and match rates. Honest notes: the US focus is the whole point — it is not the tool for a globally distributed customer base.

6. Kyckr

Kyckr supplies company data direct from primary-source registries rather than from a cached copy. For audit purposes that distinction matters: you can show a regulator the record as the official registry held it at the moment you checked. Honest notes: it is a data layer, not a full onboarding product, so expect to build the workflow yourself and pair it with identity verification for the UBOs.

A note on identity-first vendors

Onfido (now part of Entrust) and Veriff are both strong on document and biometric verification of individuals, and you will see them on KYB listicles. Be careful with that framing: their historical strength is individual KYC, not entity verification or ownership unwinding. They are a reasonable choice for verifying the UBOs a KYB process surfaces, but if business verification is your primary requirement, confirm the actual depth of registry and UBO coverage for your regions before treating either as a KYB product.

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. The rest of this guide explains what those capabilities actually have to do, so you can test a vendor's claims rather than take them on trust.

What is KYB?

KYB stands for Know Your Business. It is the due-diligence process a regulated company uses to verify the identity, ownership and risk profile of another business before onboarding it as a customer or partner. Where KYC (Know Your Customer) checks a natural person, KYB checks a legal entity — and then checks the humans who ultimately own or control that entity.

A complete KYB check answers five questions:

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

The first two are easy and largely automated. The third is where KYB gets genuinely difficult, and it is the reason the discipline exists at all.

KYB vs KYC: the difference that matters

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

The critical point is that they are layered, not alternative. A proper KYB flow contains KYC checks inside it: once you identify the beneficial owners, you must verify those individuals with the same document-and-biometric rigour you would apply to any retail customer. A business with four UBOs is one KYB check plus four KYC checks.

So the practical question is rarely "KYB or KYC" — it is whether one provider handles both cleanly, without you stitching two vendors together at the point where the ownership graph hands off to individual verification.

The KYB process, step by step

Vendors describe this differently, but every working KYB process runs through the same six stages.

1. Collect the business's claimed details

Legal name, trading name, registration number, jurisdiction of incorporation, registered address, legal form and the nature of the business. At this stage everything is unverified — it is what the applicant asserts.

2. Verify against official registries

Check those claims against the company register in the jurisdiction of incorporation. You are confirming the entity exists, is active rather than dissolved or struck off, and that the details match. A mismatch between the claimed and registered address is one of the most common early signals of a problem.

3. Map the ownership structure

Retrieve the shareholder and director records, then follow corporate shareholders upward until you reach natural persons. This is where a simple check becomes a graph traversal, and where most of the elapsed time goes.

4. Identify and verify the UBOs

Determine which natural persons meet the beneficial-ownership threshold, then run full KYC on each: identity document, liveness, and sanctions/PEP screening. See the section below — this is the hard part.

5. Screen the entity and its people

Screen the company, its directors and every identified UBO against sanctions lists, PEP lists, watchlists and adverse media. Screening only the entity and not the people behind it is a common and serious gap.

6. Monitor continuously

A company that was clean at onboarding can become high-risk later: ownership changes, a director is sanctioned, the entity is dissolved, adverse media appears. KYB is not a one-time gate, and treating it as one is what turns a passed check into a finding at audit.

Documents typically required

Exact requirements vary by jurisdiction and risk level, but a standard request list includes:

• Certificate of incorporation or equivalent registry extract
• Articles of association or operating agreement
• Shareholder register or cap table
• Register of directors
• Proof of registered business address
• Identity documents for each director and UBO
• An ownership-structure chart for anything beyond a single layer

UBO: the hard core of KYB

A UBO, or ultimate beneficial owner, is the natural person who ultimately owns or controls a legal entity — the living human who benefits from what the company does, however many corporate layers sit in between. The word that carries the weight is ultimate. A company can be owned by another company, which is owned by a third, registered somewhere else entirely. UBO identification does not stop until it reaches people.

The 25% threshold

Most frameworks, including the EU anti-money-laundering directives, treat a natural person holding more than 25% of shares or voting rights as a beneficial owner. That number is the most widely used benchmark, but it is a floor rather than a universal rule: some jurisdictions and many internal risk policies apply a lower threshold, and higher-risk sectors frequently do.

Treating 25% as the whole test is the single most common KYB mistake, because ownership is only half the definition.

Ownership is not the same as control

A person can control a company while owning almost none of it. Beneficial-ownership rules cover control exercised through other means: the right to appoint or remove a majority of the board, veto rights in a shareholders' agreement, dominant influence through financing, or control via a trust or nominee arrangement.

This is why a purely arithmetic reading of a cap table produces false negatives. Four shareholders at 25% each, with one holding board-appointment rights, is not a company with no UBO — it is a company whose UBO is identified by control rather than by percentage.

Direct, indirect and layered ownership

Direct ownership is a person holding shares in the company. Indirect ownership runs through intermediaries, and the effective stake multiplies down the chain.

Worked example. A person holds 60% of Holding A. Holding A holds 50% of Holding B. Holding B holds 90% of the operating company you are onboarding. The effective interest is 60% × 50% × 90% = 27% — above the threshold, and invisible unless you traversed all three layers. Shift the middle holding to 40% and the effective interest becomes 21.6%, below it. Small changes deep in a structure move people in and out of scope.

Structures designed to defeat this add circular cross-holdings, entities in jurisdictions with no public registry, bearer instruments where permitted, and nominee shareholders or directors whose names appear on filings while someone else holds the economic interest.

Why UBO identification is genuinely hard

• Registry quality is uneven. Some jurisdictions publish structured, current, machine-readable ownership data. Others publish scanned PDFs, update annually, or publish nothing at all.
• Registry data is self-declared. Most registers record what the company filed, and many perform no verification of it. A register entry is a claim with an official-looking wrapper.
• Access narrowed in the EU. Following a 2022 Court of Justice of the European Union ruling, general public access to member-state beneficial-ownership registers was curtailed on privacy grounds; access for obliged entities conducting customer due diligence continues, but the routes and formats differ by country.
• Trusts resist the ownership frame. A trust has no shareholders. Identifying the settlor, trustees, protector and beneficiaries is a different exercise from reading a cap table.
• It goes stale immediately. A verified ownership graph describes the day it was pulled. Without monitoring, it decays from the moment it is filed.

UBO registers, declarations and forms

Many jurisdictions require companies to file beneficial-ownership information with a central register, and to keep it current. A UBO declaration is the document in which a company states who its beneficial owners are, usually signed by a director who takes responsibility for its accuracy.

Two points matter operationally. First, a register filing is evidence, not proof — it should corroborate your own analysis, not replace it. Second, requirements change: several jurisdictions have revised scope, access rules and filing obligations in recent years, so confirm the current position for each jurisdiction you operate in rather than relying on guidance written a year ago.

What makes KYB different in crypto

Regulators treat virtual-asset service providers much like other financial institutions, so the obligations rhyme with banking. Three things make the crypto case harder in practice.

Business customers move size, fast

Corporate accounts on an exchange or OTC desk can move volumes that would take a retail user years, and they can do it within minutes of approval. The window between a bad approval and material exposure is far shorter than in traditional onboarding.

The counterparty may be a structure with no obvious owner

Crypto onboarding surfaces entity types traditional KYB tooling was not designed for: DAOs with token-based governance and no shareholders, foundations in jurisdictions chosen for exactly that reason, and protocol treasuries controlled by multisig rather than by a named officer. Applying a 25% shareholding test to a governance-token distribution does not produce a meaningful answer, and pretending it does creates a paper record rather than a control.

Sanctions exposure runs through addresses as well as names

A business customer can pass name-based sanctions screening while transacting with sanctioned on-chain addresses. Entity-level KYB and address-level analytics are complementary controls, and a stack with only one has a gap. Our guide to sanctions screening software for crypto exchanges covers the second half.

Licensing frameworks formalise all of this. The EU's Markets in Crypto-Assets regulation (MiCA) sets out what crypto firms must do to operate legally, including customer due diligence, supervised by bodies including the European Securities and Markets Authority. If you are weighing where to establish, our guide to the top blockchains for Europe and MiCA is a useful companion read, and the crypto Travel Rule covers the transfer-information obligations that sit alongside onboarding.

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.
• Automated UBO mapping. Traversal of the ownership graph through multiple layers, with effective-interest calculation — not just a list of first-level shareholders.
• Control detection, not just percentages. Surfacing board-appointment rights, nominee arrangements and other non-shareholding control, because a threshold test alone misses them.
• Integrated KYC on owners. Document verification plus biometric and 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.
• Ongoing monitoring. Continuous re-screening and change detection on ownership, status and sanctions.
• 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. Auto-approve low-risk applicants and route edge cases to a human, so compliance scales without linear headcount.

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

KYB software pricing: what you actually pay for

Few KYB providers publish a public rate card, so most quotes come only after a sales call. The price is driven less by the vendor's logo than by three things you can estimate before you talk to anyone:

• Pricing model. Most vendors charge per check (per company verified, sometimes per approved verification), sell a monthly or annual subscription with a bundled check volume, or combine a platform fee with per-check usage. Per-check pricing suits low or uneven volumes; subscriptions get cheaper per check at steady, higher volumes.
• Registry pass-through costs. Many official company registries charge for extracts or filings. Some vendors include these in the check price; others pass them through, which makes jurisdictions with paid registries noticeably more expensive.
• How many people each business generates. One corporate applicant can produce several UBO and director KYC checks plus sanctions screening on all of them, and ongoing monitoring is often billed separately. When you compare quotes, price a typical customer — the company and its owners — not the company check alone.

This is why all-in-one platforms often work out cheaper in practice even when their headline per-check price is higher: the KYC checks KYB triggers sit in the same contract instead of a second vendor's invoice. Ask every vendor for pricing on the same sample customer mix, and confirm whether failed or abandoned checks are billed.

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. Centralised 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 licence. 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. They are layered rather than alternative: a KYB check contains KYC checks, because once you identify a company's beneficial owners you must verify those individuals with document and biometric checks. A business with four UBOs is one KYB check plus four KYC checks.

What is a UBO?

A UBO is an ultimate beneficial owner — the natural person who ultimately owns or controls a legal entity, however many corporate layers sit in between. Most frameworks treat more than 25% of shares or voting rights as the benchmark, but control exercised by other means, such as the right to appoint the board, also makes someone a UBO.

What is the 25% UBO threshold?

It is the most widely used benchmark for beneficial ownership: a natural person holding more than 25% of a company's shares or voting rights. It is a floor rather than a universal rule — some jurisdictions and many internal risk policies apply lower thresholds, and it never replaces the separate test for control exercised by other means.

How do you calculate indirect ownership through multiple companies?

Multiply the percentages down the chain. A person holding 60% of a holding company that holds 50% of a second holding company that holds 90% of the target has an effective interest of 27%, which is above the standard threshold. The calculation is only possible if you traverse every layer, which is why first-level shareholder lists are insufficient.

How long does KYB verification take?

A single-layer company in a well-digitised jurisdiction can clear in minutes. A multi-layer structure spanning several jurisdictions, or one involving trusts or nominee arrangements, can take days or weeks — most of it spent resolving ownership rather than checking documents.

What documents are needed for KYB?

Typically a certificate of incorporation or registry extract, articles of association, a shareholder register, a register of directors, proof of registered address, identity documents for each director and UBO, and an ownership-structure chart for anything beyond a single layer. Exact requirements vary by jurisdiction and risk level.

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.

How is KYB done for a DAO?

With difficulty, because the standard framework assumes shareholders. A governance-token distribution does not map cleanly onto a 25% shareholding test. In practice firms fall back on the control limb of the definition — who holds multisig keys, who can pass or veto proposals, who controls the treasury — and document the reasoning, rather than forcing a percentage test that produces a paper answer.

Is a UBO register filing enough on its own?

No. Most registers record what the company filed and perform little or no verification, so a register entry is a self-declared claim in an official wrapper. Use it to corroborate your own ownership analysis, not to replace it.

What should I look for in a KYB compliance platform?

Broad company-registry coverage, automated multi-layer UBO mapping with effective-interest calculation, detection of control that is not shareholding, integrated KYC on owners, sanctions and AML screening, ongoing monitoring, a defensible audit trail, and configurable risk rules that auto-approve low-risk applicants while routing edge cases to a human reviewer.

How much does KYB software cost?

Most KYB providers quote privately rather than publishing prices. Expect per-check pricing, a subscription with a bundled volume, or a platform fee plus usage, with paid registry extracts sometimes passed through on top. The real cost per customer includes the KYC and screening checks on every UBO and director, so compare quotes on the same sample customer mix.

Do I need separate KYC and KYB software?

Not necessarily. All-in-one platforms such as iDenfy and Sumsub run KYB, KYC on the owners and AML screening in one workflow. Registry specialists such as Middesk and Kyckr go deeper on company data but need a separate KYC provider for the individuals behind the business.

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. Centralised platforms that hold funds and open corporate accounts do need KYB.

Keep reading

• MiCA identity verification: the best KYC providers for crypto exchanges
• KYB compliance checklist
• Best sanctions screening software for crypto exchanges
• What is the crypto Travel Rule?
• ID verification tips for crypto exchanges
• Top blockchains for Europe and MiCA
• Crypto Glossary: 40 DeFi and Crypto Terms Explained
• Source of Funds vs Source of Wealth: What's the Difference?

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.