Coinfy - Coinfy is a free & open source online wallet for Bitcoin, Ethereum and ERC20 tokens.
NoPass.me - Open-source identity verification
COBINHOOD - The world's first "ZERO Trading Fees" cryptocurrency exchange
Amazon Cognito - Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.
Barginex - Invest in the world's top financial assets easily and securely with bitcoin.
Civic Token - Access to identity verification via the blockchain