Know Your Business Verification

The buyer problem

KYB emerged from financial-services regulation but has spread to any business that onboards other businesses at scale: marketplaces, payment platforms, and procurement teams alike. Teams building or buying a KYB capability often don't know which regulatory anchors actually apply to them (many requirements are binding only on regulated financial institutions, but are widely adopted as best practice elsewhere), which makes it hard to scope how deep a KYB process needs to be versus how deep it merely could be.

What know your business verification covers

KYB verification confirms three layers about a business: its legal existence and standing (registration, active status, correct legal name), who ultimately owns and controls it (beneficial ownership, typically down to natural persons above a set ownership threshold), and whether it or its owners present sanctions, PEP, or adverse-media risk. Mature KYB programs also define ongoing monitoring, since a business's status, ownership, or sanctions exposure can change after initial onboarding.

Methods and techniques

• Legal-entity verification against business registries to confirm registration status and correct legal name
• Beneficial ownership discovery, tracing ownership through corporate structures to natural persons above a defined threshold (commonly 25%, per the FinCEN CDD Rule)
• Risk-based due diligence depth, applying lighter checks to low-risk businesses and enhanced due diligence to higher-risk ones (e.g. certain jurisdictions or industries)
• Sanctions, PEP, and adverse-media screening of the business and its identified beneficial owners
• Ongoing monitoring and periodic re-verification to catch status, ownership, or sanctions changes after onboarding

What to verify before you retain a vendor

• Which framework the process maps to. Ask whether a KYB program or vendor's methodology is explicitly built against a named framework (FinCEN CDD Rule, FATF Recommendations) or is a generic, unsourced checklist.
• Beneficial-ownership methodology. Confirm the ownership-percentage threshold used and how ownership is traced through layered corporate structures, not just single-level ownership.
• Risk-based tiering. Ask whether the process applies a single fixed check to every business or a risk-based approach that scales depth to risk level.
• Ongoing monitoring cadence. Clarify whether verification is a one-time event or includes defined periodic re-screening, and what triggers a re-check outside the normal cadence.
• Audit trail. Confirm the process produces a retrievable record of what was checked and when, which matters for both internal audit and, where applicable, regulatory examination.

Questions to put in your RFP

1. Which named regulatory framework(s) does your KYB methodology map to?
2. What beneficial-ownership threshold do you use, and how do you trace ownership through multi-layer corporate structures?
3. Do you apply risk-based tiering, and what triggers enhanced due diligence for a given business?
4. What does ongoing monitoring look like after initial onboarding, and how is it priced?
5. What audit trail or documentation does your process produce for each verified business?
6. Can you support businesses incorporated outside the US, and in which specific countries?

Red flags

• No named framework or regulatory basis for the methodology, just a generic "compliance-grade" claim.
• A single fixed check applied uniformly regardless of risk, with no tiering option.
• No clear beneficial-ownership methodology, or an ownership threshold that cannot be explained.
• No documentation or audit trail produced from the verification process.
• A claim that KYB verification "guarantees" a business is legitimate. No verification process eliminates risk, it produces a documented, point-in-time or ongoing assessment.

Regulatory references

Real, named regulatory anchors relevant to this category. Listed for context; they do not endorse this index or any vendor, and this is not legal advice. Verify current requirements directly with the issuing agency or your counsel.

CDD Rule

FinCEN Customer Due Diligence Rule. Codified at 31 CFR 1010.230. Directly binding on covered US financial institutions; sets the 25% ownership-prong threshold plus a separate control-prong test, widely adopted as a practical benchmark by KYB platforms and non-financial businesses alike.

FATF

Financial Action Task Force Recommendations. International standards, particularly Recommendation 10 (customer due diligence) and Recommendations 24-25 (beneficial-ownership transparency), that most national KYB-adjacent regulation is built on.

OFAC SDN List

OFAC Specially Designated Nationals List. The core US sanctions list screened against as part of a complete KYB process; other jurisdictions maintain their own equivalent lists.

CTA / BOI

Corporate Transparency Act / FinCEN Beneficial Ownership Information rule. A federal beneficial-ownership reporting requirement administered by FinCEN, distinct from KYB verification itself (BOI reporting is a company's own filing obligation, not a check performed on a vendor). Its scope has narrowed since original enactment (a March 2025 interim final rule limited the reporting-company definition to certain foreign entities); confirm current status directly with FinCEN guidance.