Mifiel is a legal technology company that provides electronic signature and digital document management solutions specifically designed for the Mexican market. Founded in 2015 by Tomas Alvarez, Hannah Kim, Genaro Madrid, Rodrigo González del Cueto, and Sergio Díaz Nila, the company offers both advanced electronic signatures using Mexico's government-issued e.firma (SAT) and simple electronic signatures with biometric verification. Mifiel's platform allows organizations to sign contracts and legal documents electronically with full legal validity under Mexican Commercial Code Article 97, providing presumed authenticity in court unless proven otherwise. The platform serves hundreds of organizations including multinational banks, Fortune 500 companies, fintech lenders, factoring companies, and small and medium-sized enterprises across Mexico. Mifiel is notable for being the first platform globally to enable secure electronic transfer of endorsable negotiable instruments such as promissory notes by leveraging blockchain technology. The company uses Bitcoin's Liquid Network to ensure document uniqueness and create an immutable chain of endorsements, addressing Mexico's requirement for transferable credit instruments that maintain legal enforceability. As of 2024, Mifiel has issued over 69,000 promissory notes worth approximately $212 million, with around $43 million issued on Liquid. All documents signed through Mifiel include Records of Data Integrity compliant with Mexican standard NOM-151, issued by accredited Trust Service Providers. The platform offers API access, encrypted signing processes, customizable branding, organizational accounts with permission controls, and integration with credit bureau consultation services. Mifiel operates as a SaaS business model and has raised seed funding from investors including Digital Currency Group.