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Most fintech KYB stacks were pieced together before AI was a practical building block. The vendors that dominate the category were designed for a narrower regulatory perimeter than the one many fintechs will face from 2028.
Key takeaways
- The global KYC and KYB software market is expected to hit $35.5 billion in 2026 and $53 billion by 2030 (Fintech Global).
- The top KYB platforms for fintechs in 2026 are TransactionLink, Alloy and Fenergo. TransactionLink is a no-code onboarding automation platform, Alloy is an identity decisioning platform with agents added on top, and Fenergo is a bank-grade lifecycle suite now aimed at bigger fintechs.
- The EU AMLR applies from 10 July 2027. From 1 January 2028, the EU's Anti-Money Laundering Authority (AMLA) directly supervises up to forty obliged entities, including payment service providers and crypto-asset service providers.
- McKinsey reports that agentic AI in compliance can lift productivity by 200 to 2,000%, with one person overseeing twenty or more agents in well-designed financial-crime workflows.
What is KYB software for fintechs?
Know Your Business (KYB) software lets a fintech verify a business customer, screen the company and its ultimate beneficial owners (UBOs) against sanctions and PEP lists, review corporate documents, and keep re-verifying over time. It works at three stages: onboarding, periodic refresh, and ongoing monitoring against sanctions lists, registries and adverse media.
Fintechs face a different problem than banks. Their customers are often small businesses signing up inside an app, not corporate treasurers working with a relationship manager. Conversion matters as much as compliance, because every extra document request costs you sign-ups. Many fintechs also juggle six or more vendors across the lifecycle, with nothing tying them together.
The top 3 KYB platforms for fintechs in 2026
1. TransactionLink
TransactionLink is a no-code KYB and KYC onboarding automation platform that lets payment providers, banks and fintechs build custom compliance workflows and plug in 150+ data sources through a single interface. Instead of waiting on engineering, compliance and ops teams design the onboarding flow themselves, with drag-and-drop logic.
The company started in 2020 as an open banking provider before shifting its focus to business onboarding. It now works with 100+ customers worldwide, including Fiserv, and the platform can be fully white-labelled.
What stands out:
- Build flows without code. Teams can create workflows, add risk and decision logic, and connect to 150+ KYC/KYB services across 100+ geographies. The data sources span corporate registries, ID verification, AML screening, credit bureaus and fraud prevention.
- Front and back end in one. The platform automates both the back-end checks and the customer-facing steps, so onboarding runs end to end.
- Real cost and speed gains. Some established players cut onboarding costs by up to 70%, while scale-ups sped up expansion into new markets by months.
Best for: fintechs, PSPs and banks that want to launch and change business onboarding flows fast, with broad data coverage and no engineering queue. Since TransactionLink's focus is onboarding automation, ask in a demo how it handles continuous monitoring and field-level audit trails ahead of AMLA supervision.
2. Alloy
Alloy, founded in New York in 2015, is the identity decisioning platform most widely used by US fintechs and payments companies. More than 700 financial institutions and fintechs rely on it. It has raised $211 million and was last valued at $1.55 billion.
In October 2025, Alloy launched perpetual KYB (pKYB) and a Customer Risk Assessment solution in the UK and Europe. It re-runs checks and re-scores risk when ownership or business details change, and an embedded AI Assistant runs on the same decisioning engine.
The upside is its US footprint and the range of third-party data providers it orchestrates. The trade-off is architecture. Alloy began as an orchestration layer over third-party data, so perpetual KYB and agents were added later. Teams configure rules and routing across vendors, the underlying record is the workflow trace rather than an evidence-first data model, and policy changes run through orchestration rather than a dedicated policy engine.
Best for: US fintechs and payments companies already using Alloy for KYC that want to extend into business verification and are happy to own the data layer.
3. Fenergo
Fenergo, founded in Dublin in 2009, is a bank-grade client lifecycle management (CLM) and KYB platform, now pitched to larger fintechs and crypto-asset service providers. Around 70 global financial institutions use it.
In May 2025 it launched its FinCrime Operating System with an agentic AI layer, bringing onboarding, KYC, screening, identity verification and transaction monitoring onto one platform. Its perpetual KYC product, Smart Review, shows human reviewers only the material changes.
Fenergo's strengths are depth and audit credibility from big-bank deployments. For a fintech, the cost is weight. Top-100 bank contracts often run $3 million to $5 million a year on four-year terms, rollouts cover one line of business at a time, and former staff describe replacing older Fenergo installations as major surgery.
Best for: large fintechs, payment groups and crypto-asset service providers heading for AMLA direct supervision in 2028, with the budget and patience for a multi-year programme.
How to evaluate KYB software in 2026
Six criteria matter most:
- Conversion impact. Each onboarding step is a chance to lose a customer. Look for step-level conversion tracking and flows you can adapt when a step underperforms.
- Policy change speed. Fintech policies shift about every six months. Can compliance make the change directly, or does it need an engineering ticket and a release window?
- Evidence and auditability. Every decision should be reproducible, explainable and tied to source evidence at field level. Supervisors expect the same answer on a re-run.
- False positive performance. The industry baseline is 90 to 95% false positives in screening and transaction monitoring (McKinsey). Below 50% is a material saving, and a well-tuned engine should get under 30%.
- Perpetual monitoring vs scheduled review. Does a file update the moment a sanctions list, UBO or registry record changes, or does it wait for the next 12-, 24- or 36-month cycle?
- Composability. Can you run it as one stack or adopt it module by module alongside your existing tools? With no dominant unified system in the category, that lowers switching costs and lets you modernise in stages.
What does AMLA mean for fintech KYB?
AMLA, based in Frankfurt, was created under EU Regulation 2024/1620. The AMLR applies from 10 July 2027, and from 1 January 2028 AMLA directly supervises up to forty obliged entities.
That group isn't limited to banks. Credit institutions, financial institutions, payment service providers and, for the first time at EU level, crypto-asset service providers are all in scope. Selection depends on operating in six or more Member States with high residual risk, so pan-European payments providers, crypto exchanges and embedded-finance platforms should expect to be in the pool.
In practice, KYB tooling will need stronger evidence trails, faster policy changes, and continuous risk assessment in place of periodic snapshots. Platforms built for the pre-AMLA world, with multi-quarter policy cycles and thin per-field audit trails, will need serious rework.
Metrics that show your KYB software is working
- End-to-end business onboarding conversion rate
- Median and 95th percentile time to first decision
- False positive rate on sanctions and adverse media screening
- Cost per KYB review, including analyst time
- Share of reviews triggered by a real-world signal rather than the calendar
- Time from policy authoring to live execution
- Coverage of UBO changes between scheduled reviews
FAQ
What is the best KYB software for fintechs in 2026?
The leading options are TransactionLink, Alloy and Fenergo. TransactionLink is a no-code onboarding automation platform, Alloy is the go-to identity decisioning layer for US fintechs, and Fenergo is the heavyweight bank-grade choice for larger fintechs preparing for AMLA.
What's the difference between KYC and KYB software?
KYC verifies individuals and KYB verifies businesses. KYB is harder at a fintech because of layered ownership, cross-border entities and UBO structures that scheduled reviews often miss.
How long does KYB software take to deploy?
Legacy enterprise platforms typically need 12 to 24 months for a single product line. No-code platforms like TransactionLink are built to get new workflows live much faster.
Can AI replace KYB analysts?
No, but it can cut analyst workload by 50 to 70% by automating evidence collection, screening and document review. McKinsey reports one person can supervise twenty or more AI agents in well-designed financial-crime workflows.
What is AMLA and how does it affect fintech KYB?
AMLA is the EU's Anti-Money Laundering Authority. From 1 January 2028 it directly supervises around forty obliged entities, including payment and crypto-asset service providers. Fintechs in that group will need full per-field audit trails, continuous monitoring and faster policy cycles.
