TLDR
- KYB pricing is not uniformly hidden. Middesk, Persona, Sumsub, and Alloy all have publicly documented pricing structures, even if exact per-check rates require a sales conversation at higher volumes.
- Per-check business verification costs fall into three bands: light registry pulls ($0.50 to $2), mid-tier verification with EIN and UCC checks ($5 to $15), and full orchestrated workflows with document review and monitoring ($20 to $50 or more per business).
- Platform fees, monitoring subscriptions, and minimum commitments often cost more annually than the per-check charges themselves. Evaluate total cost of ownership, not just the headline rate.
- Middesk is the most US-focused option with the clearest public pricing for registry checks. Sumsub and Persona have modular pricing that rewards volume. Alloy bundles KYB into its broader orchestration platform, which changes the cost calculus entirely.
- Baselayer targets high-risk onboarding with deeper data pulls and tends toward custom enterprise pricing rather than self-serve tiers.
KYB pricing across Middesk, Persona, Sumsub, Alloy, and Baselayer falls into three cost bands based on check depth: light registry pulls run roughly $0.50 to $2 per business, mid-tier checks with EIN, UCC, and beneficial ownership data run $5 to $15, and full orchestrated workflows with document review and ongoing monitoring can reach $20 to $50 or more per business. Platform fees and annual minimums frequently exceed the per-check cost at typical fintech volumes.
Why KYB Pricing Feels Opaque (And Where It Actually Isn’t)
The reputation for secrecy is partly deserved and partly a buyer’s mistake. Vendors like Alloy and Baselayer genuinely do not publish per-check rates. Others, including Middesk and Sumsub, publish enough on their public pricing pages to build a working budget. The confusion comes from conflating three distinct cost layers that most vendors deliberately separate: the data pull itself, the platform or workflow layer sitting on top, and any ongoing monitoring subscription.
A company doing 500 KYB checks per month is buying a different product than one doing 50,000. At low volumes, per-check pricing dominates. At scale, the platform fee and minimum commitment become the real negotiation. Knowing which layer controls your spend before you enter a sales call is the only way to avoid anchoring on the wrong number.
The other complication is that “a KYB check” means different things at different vendors. Middesk’s basic business formation check looks nothing like Alloy’s full onboarding workflow that might chain five or six data sources together. Comparing headline rates without normalizing check scope is the single most common budgeting error fintech teams make.
What Does a KYB Check Actually Include? Defining Check Scope Before Comparing Cost
Scope determines cost more than vendor selection does. Before any vendor comparison is meaningful, you need to define what your compliance program actually requires for a single business verification event.
Layer 1: Registry and Formation Checks
This is the lightest and cheapest tier. A vendor queries state secretary of state databases to confirm the business is registered, active, and matches the name provided. This covers basic existence verification but does not confirm ownership, tax identity, or financial standing. Middesk calls this a business formation check, and it is the cheapest unit of KYB work you can buy from any US-focused vendor.
Layer 2: Identity and Ownership Data
Adding EIN verification, beneficial ownership lookup, UCC lien searches, and principal identity checks pushes cost significantly higher. This is where most fintech onboarding programs actually sit. A legitimate business onboarding workflow for a payments platform or lender typically needs at minimum the business existence check plus EIN match plus one or two ownership verification steps.
Layer 3: Orchestrated Review and Ongoing Monitoring
Document collection, analyst-assisted review, adverse media screening, and perpetual KYB monitoring are the top tier. This is where per-check rates become almost irrelevant, because you are effectively buying a managed compliance workflow. Alloy’s platform plays here. Baselayer positions itself here for high-risk merchant categories. Pricing at this layer is almost always custom.
Middesk Pricing: What Public Information Shows
Middesk is the most transparent vendor in this comparison for US-based business verification. As of their public pricing page, Middesk offers a self-serve Business plan that allows teams to run business verification reports. Middesk’s public documentation describes individual report types including business verification, tax identification, and lien searches as separately purchasable, rather than a single bundled check.
Middesk does not publish a flat per-check rate publicly as of July 2025, but their self-serve tier is accessible without a sales call, which already distinguishes them from Alloy and Baselayer. Teams running fewer than a few hundred checks per month have reported being able to access Middesk’s API without negotiating an enterprise contract, which matters for early-stage companies that cannot commit to volume minimums.
The monitoring product, which alerts you to changes in a business’s registration status, ownership, or legal standing, is priced separately from the initial verification. This is a structural choice that affects your cost model: if your compliance program requires perpetual KYB, Middesk’s total cost per business relationship is higher than the initial check cost suggests. For more on how Middesk compares at the platform level, the Middesk vs. Baselayer platform comparison covers workflow and data depth differences in detail.
Persona Pricing: Modular Checks That Add Up Quickly
Persona approaches KYB as one module within a broader identity orchestration platform. As of their public pricing page (last reviewed July 2025), Persona describes a usage-based model where you pay per verification and per inquiry across different verification types. Business verifications are listed separately from individual identity checks, document verification, and database lookups.
Persona’s starter tier is self-serve and designed for teams that want to test workflows before committing to volume. The modular structure means a single KYB workflow that chains business verification, beneficial owner identity checks, and document collection will bill for each step independently. A team that does not build its workflow carefully can end up paying for three or four separate Persona inquiries per business where a bundled vendor would charge one composite rate.
The upside of that modularity is precision. If your compliance program only requires formation checks with no document collection, you pay only for formation checks. Persona’s workflow builder also allows non-engineering teams to modify verification sequences without a deployment, which reduces the hidden cost of compliance iteration. That flexibility has real dollar value for Series A and Series B companies whose compliance requirements are still evolving.
Sumsub Pricing: Volume Tiers with Global Coverage Built In
Sumsub publishes pricing tiers on their website that are structured around monthly verification volumes rather than flat per-check rates. Their KYB product covers business verification across multiple jurisdictions, which matters for companies onboarding international businesses rather than US-only entities.
Sumsub’s documented pricing approach as of their public materials includes a base plan for lower volumes and custom pricing for enterprise volumes. For KYB specifically, Sumsub bundles global registry checks, UBO verification, and document collection into their business verification product, which means the per-business cost is higher than a light registry pull from Middesk but includes more coverage in a single charge.
For US-only business verification, Sumsub is rarely the cheapest option. Their cost advantage appears when a platform is onboarding businesses across multiple countries and wants one vendor to handle global coverage without stitching together regional data sources. A marketplace onboarding sellers from the US, UK, and EU in a single workflow is a stronger Sumsub use case than a US-only B2B lender.
Alloy Pricing: KYB as Part of an Orchestration Platform
Alloy does not publish per-check KYB pricing. Their model is platform-first: you pay for access to Alloy’s identity decisioning engine, and individual data sources are priced within that context. This means the per-check cost question is almost the wrong question to ask Alloy. The more accurate frame is: what does the Alloy platform cost at my volume, and does that platform fee include enough data source credits to justify it?
Alloy’s strength is orchestration. If your compliance workflow requires running a business verification, then conditionally triggering a UCC search, then routing to manual review based on the outcome, Alloy handles that logic natively. Building the equivalent workflow yourself with raw API calls to multiple data vendors is possible, but requires engineering investment that has real cost. Alloy’s platform fee is partly paying for that pre-built logic.
For teams comparing Alloy and Middesk head-to-head, raw per-check cost is not the deciding factor. Middesk will almost certainly win on that metric for US business verification. What matters is whether your program needs the conditional logic and multi-vendor orchestration that Alloy provides, or whether direct Middesk API calls are sufficient. The Alloy vs. Middesk comparison covers that tradeoff in detail.
Baselayer Pricing: High-Risk Onboarding with Custom Contracts
Baselayer does not publish pricing publicly. Their positioning targets higher-risk merchant categories and complex business structures where a standard registry check is insufficient. Custom pricing is the norm here, and minimum annual commitments apply.
Baselayer’s differentiation is in the depth of their data sources and their coverage of business types that other vendors handle poorly: shell companies with complex ownership chains, international business structures, or businesses in regulated industries where the verification requirements go beyond standard formation and EIN checks. If your program has material exposure to that category of business, the premium over Middesk pricing is defensible. If you are mostly onboarding straightforward US LLCs and sole proprietors, Baselayer is probably over-engineered for your needs.
KYB Pricing Benchmarks: The Three-Band Framework
The FintechSpecs KYB Cost Band Framework organizes business verification pricing into three tiers based on check scope, independent of vendor. Most fintech teams anchor on vendor names when they should anchor on check depth first.
| Band | Check Scope | Indicative Cost Range (per business) | Best-Fit Vendors | Best-Fit Use Case |
|---|---|---|---|---|
| Band 1: Registry Only | State registration, active status, name match | $0.50 to $2 | Middesk (individual report) | Low-risk platforms, internal tooling, pre-screening |
| Band 2: Full Verification | EIN, UCC, beneficial ownership, principal ID | $5 to $15 | Middesk, Persona, Sumsub | Payments onboarding, B2B lending, marketplace sellers |
| Band 3: Orchestrated + Monitoring | Document review, adverse media, perpetual monitoring, conditional logic | $20 to $50+ per business | Alloy, Baselayer, Sumsub enterprise | High-risk onboarding, regulated fintech, multi-jurisdiction |
These ranges are illustrative benchmarks based on publicly available pricing information and market positioning, not vendor-confirmed quotes. Your actual cost will depend on volume, contract term, and the specific data sources your compliance program requires. The cost bands are useful for budget planning and vendor shortlisting, not final contract negotiation.
Platform Fees and Minimums: The Cost That Usually Exceeds Per-Check Rates
At typical fintech verification volumes, platform fees and annual minimums tend to outweigh per-check charges , and most buyers do not discover this until they are already in contract negotiations. This is the number most buyers miss when they ask vendors for a per-check rate without also asking about the base platform fee.
Consider a hypothetical Series A lending platform running 1,000 KYB checks per month at a Band 2 cost of $8 per check. That is $8,000 per month in per-check charges, or $96,000 annually. If the vendor also charges a $24,000 annual platform fee, the effective cost per check rises to $10, not $8. At lower volumes, the platform fee becomes an even larger proportion of total spend. A team running 200 checks per month at the same per-check rate would see an effective cost closer to $18 per check once the platform fee is allocated.
This math explains why some teams at low verification volumes find it cheaper to use a pay-as-you-go vendor without a platform fee even if the headline per-check rate is higher. The KYC cost-per-verification benchmarks article covers the same dynamic for consumer identity checks, and the pattern holds for business verification. Fixed costs kill unit economics at low volume.
How Monitoring Pricing Changes Total Annual Spend
Perpetual KYB monitoring, sometimes called ongoing monitoring or continuous KYB, is priced separately from the initial verification check at every major vendor. This matters for compliance programs that are moving toward a risk-based ongoing monitoring model rather than point-in-time verification at onboarding.
Monitoring is typically priced per monitored entity per month or per year. Based on publicly listed rates at vendors including Middesk and Persona as of their current pricing pages, monitoring rates tend to sit between $1 and $5 per business per month depending on the depth of monitoring (registration changes only versus full adverse media and ownership change alerts). For a portfolio of 10,000 active business customers, annual monitoring costs can range from $120,000 to $600,000, which is often larger than the annual spend on new business verification checks.
Teams building a budget for KYB infrastructure should model initial verification volume and active portfolio size separately. A platform that has been running for three years has a large portfolio of previously verified businesses that need ongoing monitoring, even if new customer acquisition has slowed. Vendors that bundle monitoring into a flat platform fee can look expensive upfront but become cost-effective as the monitored portfolio grows. For more on how vendors handle perpetual KYB as a distinct product category, see the best perpetual KYB and ongoing monitoring platforms comparison.
How to Benchmark Your Current KYB Spend Before a Vendor Review
Most compliance teams entering a vendor review do not know their actual cost per business verification. They know what they pay the vendor monthly, but they have not divided that by the number of checks run, separated initial verifications from monitoring charges, or allocated engineering time spent on the integration.
A clean benchmark calculation requires three inputs: total annual vendor spend (platform fee plus per-check charges plus monitoring), total new business verifications run in the same period, and an estimate of internal engineering hours spent on integration and maintenance multiplied by your loaded engineer cost. The output is a true cost-per-verified-business that you can compare against vendor quotes. In practice, most teams find their effective cost runs materially above the vendor’s quoted per-check rate once engineering time is included , a pattern consistent with how KYC integration overhead is discussed across practitioner communities including r/fintech and compliance operations forums.
Running this calculation before a vendor review gives you a baseline. It also clarifies whether your problem is the per-check rate (a vendor switching problem) or the engineering overhead (an integration and workflow problem that a different vendor might not solve). Building this kind of cost model is covered in more depth in the fintech product and compliance readiness checklist, which includes a vendor cost audit framework for compliance infrastructure.
Which KYB Vendor Makes Sense at Which Stage?
Vendor fit shifts as a company scales. A pre-Series A company doing 50 to 200 verifications per month has different constraints than a Series C company doing 5,000 per month under a bank program requiring enhanced due diligence.
Early-stage teams benefit from vendors with no platform fee minimums and self-serve API access. Middesk and Persona both offer paths to start without an enterprise contract. This matters when your verification volume does not justify a six-figure annual commitment. The cost of a mis-fit enterprise contract at low volume is not just the overspend on minimums. It is also the time spent negotiating a contract when you should be building product.
Growth-stage companies with 1,000 or more verifications per month and a compliance team that has defined its workflow should evaluate whether Alloy’s orchestration layer saves enough engineering time to justify its platform premium over a direct Middesk or Sumsub integration. That calculation depends heavily on how complex your conditional logic is and how often your compliance program changes. Teams whose verification rules change frequently get more value from Alloy’s no-code workflow editor than teams whose rules have been stable for a year.
Enterprise and high-risk programs with complex ownership structures or significant international exposure should shortlist Baselayer and Sumsub’s enterprise tier. The right question for these teams is not cost per check but rather: which vendor’s data coverage actually resolves the business types you are seeing, and which one has the audit trail and reporting your examiner needs to see. The enterprise KYB vendor shortlist for RFP processes covers the due diligence questions for that buying process.
Frequently Asked Questions
What is the average cost per KYB check in the US?
The average cost per KYB check in the US ranges from under $2 for a light state registry pull to $5 to $15 for a full verification including EIN, beneficial ownership, and UCC data, to $20 or more for orchestrated workflows with document review and monitoring. The wide range reflects check scope, not just vendor choice. A registry check and a full onboarding verification are not the same product, even when sold under the same “KYB” label by the same vendor.
Does Middesk publish its pricing publicly?
Middesk offers a self-serve business plan accessible without a sales call, and their public documentation describes individual report types as separately purchasable. They do not publish a flat per-check rate for enterprise volumes, which require direct negotiation. For teams running low to moderate verification volumes, Middesk is among the most accessible vendors to price without a sales process, which distinguishes them from Alloy and Baselayer.
How does Alloy’s KYB pricing compare to Middesk?
Alloy does not publish per-check KYB pricing and takes a platform-first pricing approach, where access to their identity decisioning engine is the base cost and data source usage is layered on top. Middesk, by contrast, prices business verification reports individually. Middesk will generally have a lower cost per basic business check. Alloy’s pricing reflects the orchestration layer, conditional workflow logic, and multi-vendor data routing that sit on top of the raw check, which has value for compliance programs that need that complexity.
What does Sumsub charge for KYB checks?
Sumsub structures KYB pricing in volume tiers rather than flat per-check rates, and their documentation as of current public materials shows a base plan and custom enterprise pricing. Sumsub bundles global registry checks, UBO verification, and document collection into its business verification product. For US-only business verification, Sumsub is typically not the cheapest option. Their cost advantage is strongest for companies verifying businesses across multiple countries through a single vendor relationship.
Are there KYB vendors with no minimum commitment?
Middesk and Persona both offer access paths that do not require an enterprise minimum commitment at low volumes. This is meaningful for early-stage companies that cannot predict monthly verification volumes with enough precision to commit to a floor. Alloy and Baselayer are structured around annual contracts with minimums. Sumsub’s self-serve tier exists but their KYB product at meaningful scale typically involves a custom contract. No-minimum access comes at the cost of per-check rates that are less negotiated than enterprise agreements.
What is perpetual KYB monitoring and how is it priced?
Perpetual KYB monitoring, also called ongoing KYB, refers to continuous post-onboarding checks that alert a compliance team when a business’s registration status, ownership, or legal standing changes. Every major vendor prices this separately from the initial verification. Based on publicly listed rates at vendors including Middesk and Persona as of their current pricing pages, rates typically range from $1 to $5 per monitored business per month, depending on the depth of monitoring. For fintech platforms with large existing business customer portfolios, the annual cost of monitoring often exceeds the annual cost of new business verifications.
How should I build a KYB budget for my compliance program?
Start with three line items: per-check cost multiplied by expected new monthly verifications, the vendor platform fee or annual minimum, and estimated monitoring cost based on your total active business portfolio size. Divide the sum by annual new verifications to get your effective cost per verified business including fixed costs. Then add a realistic estimate of internal engineering hours for integration and maintenance. Most teams find their true cost per verification runs materially above the vendor’s quoted per-check rate once all layers are included.
Is Baselayer pricing available without a sales call?
Baselayer does not publish pricing publicly. Their product is positioned for high-risk onboarding and complex business structures, and pricing is negotiated through a sales process with custom contracts. For teams that need a quick budget estimate, Baselayer is not suitable for self-serve pricing research. Teams should contact them only after confirming that their compliance program genuinely requires the deeper data coverage and high-risk merchant specialization that Baselayer targets, rather than using them as a comparison point to pressure-test Middesk or Alloy pricing.
What KYB Pricing Actually Signals About a Vendor
A vendor that publishes self-serve pricing is signaling that their product can be evaluated without a relationship. That is valuable information about how the product works, not just what it costs. Middesk and Persona are betting that their API is good enough to win on merit through a developer’s direct experience. Alloy and Baselayer are betting that the complexity of their use case requires a consultative sale. Both bets can be correct simultaneously, which is why the pricing opacity itself is a useful signal about where your compliance program sits on the complexity spectrum.
The buyers who get the best KYB pricing are not necessarily the ones who push hardest in negotiation. They are the ones who enter a vendor conversation knowing their monthly verification volume, their check scope requirement, their active portfolio size for monitoring, and their engineering bandwidth for integration. Vendors price against uncertainty. A buyer who has already run the three-band cost calculation and knows their effective cost per verified business gives the vendor less room to anchor on an unfavorable number.
If your program is growing quickly, build your vendor contract to include volume tiers rather than a flat rate, and make sure monitoring pricing scales in a way that does not penalize you for retaining customers. A KYB contract that works at 1,000 new verifications per month can become a margin problem at 10,000 if the monitoring cost scales linearly with your portfolio. That is the budget failure most fintech compliance teams do not see coming, and the one worth negotiating hardest on before you sign.
