Where compliance meets conversion
Meet UK requirements and ensure seamless onboarding with Fourthline’s Data Verification

Where compliance meets conversion
Meet UK requirements and ensure seamless onboarding with Fourthline’s Data Verification

High regulatory standards. Frictionless onboarding.
Effortless compliance
Meet the UK’s AML and KYC regulations and JMLSG guidelines with ease.
Reduced fraud risk
Cross-reference data sources and protect against synthetic identity fraud.
Quick and easy verification
Provide real-time checks for instant results and faster onboarding.
Versatile for your needs
Scale at speed with automated workflows and expert support.
High regulatory standards. Frictionless onboarding.
Effortless compliance
Meet the UK’s AML and KYC regulations and JMLSG guidelines with ease.
Reduced fraud risk
Cross-reference data sources and protect against synthetic identity fraud.
Quick and easy verification
Provide real-time checks for instant results and faster onboarding.
Versatile for your needs
Scale at speed with automated workflows and expert support.
Why choose Fourthline
99.98%
Fraud detection accuracy
217
Issuing countries
100%
Automatic decision making
100%
GDPR compliant
AI-driven
with seamless API integration
Why choose Fourthline
99.98%
Fraud detection accuracy
217
Issuing countries
100%
Automatic decision making
100%
GDPR compliant
AI-driven
with seamless API integration
How Data Verification works
How Data Verification works
Data collection
Customers submit their name, address, and date of birth during the onboarding process.
Data collection
Customers submit their name, address, and date of birth during the onboarding process.
Database queries
We verify their data by cross-referencing personal information against local and global databases such as Credit Reference Agency Records, and Bank Account databases.
Database queries
We verify their data by cross-referencing personal information against local and global databases such as Credit Reference Agency Records, and Bank Account databases.
Match validation
Only customers who achieve successful matches in both independent database checks are approved.
Match validation
Only customers who achieve successful matches in both independent database checks are approved.
Built to scale across every industry
Our build-as-you-go platform is customisable for your unique use case.
Financial services
Onboard customers, provide secure access to online platforms and apps, and reduce fraud to comply with the UK’s KYC and AML regulations.
Online marketplaces
Verify buyer and seller identities to prevent fraud, build trust, and comply with local payment regulations.
Payment service providers
Reduce fraud risk and ensure compliance with FCA, AML, and PSD2 standards, enhancing trust in digital payments.
Real estate and rentals
Verify buyer, seller, landlord, and tenant identities during transactions and contracts to meet AML and right-to-rent requirements.
Built to scale across every industry
Our build-as-you-go platform is customisable for your unique use case.
Financial services
Onboard customers, provide secure access to online platforms and apps, and reduce fraud to comply with the UK’s KYC and AML regulations.
Online marketplaces
Verify buyer and seller identities to prevent fraud, build trust, and comply with local payment regulations.
Payment service providers
Reduce fraud risk and ensure compliance with FCA, AML, and PSD2 standards, enhancing trust in digital payments.
Real estate and rentals
Verify buyer, seller, landlord, and tenant identities during transactions and contracts to meet AML and right-to-rent requirements.
Identity verification that goes beyond
Identity verification that goes beyond
Solutions
Solutions
Fourthline has been certified by EY CertifyPoint to ISO/IEC27001:2022 with certification number 2021-039.
Copyright © 2026 - Fourthline B.V. - All rights reserved.
Fourthline has been certified by EY CertifyPoint to ISO/IEC27001:2022 with certification number 2021-039.
Copyright © 2026 - Fourthline B.V. - All rights reserved.