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What is Sumsub

Sumsub (short for Sum & Substance) is a global verification platform that helps businesses confirm the identity of their users and prevent fraud. The company provides automated identity verification and compliance solutions used by financial platforms, marketplaces, and digital services around the world.


Sumsub’s technology enables businesses to verify customer identities through document checks, biometric verification, and fraud detection tools. This process helps companies comply with regulatory requirements such as Know Your Customer (KYC) and Anti-Money Laundering (AML) standards, while maintaining a smooth user experience.


At Mellow, Sumsub is used to securely verify clients and protect the platform from fraud and misuse. Through Sumsub’s verification tools, users confirm their identity as part of the onboarding process.


This verification step helps ensure that all payments and operations on the platform remain secure, compliant, and trustworthy. By working with Sumsub, Mellow can provide a safer environment for businesses and clients to collaborate and transact.

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