Finix is a fintech company founded in 2015 and based in San Francisco, California, with an additional office in Chicago. The company provides a comprehensive payments infrastructure platform that enables businesses to create and manage payment experiences through a single, developer-friendly API. Finix's mission is to make financial services more accessible by building a global operating system for fintech, focusing on payments.

The platform offers various services, including payments acceptance and processing, payout management, and PayFac-as-a-Service. It supports automated reporting tools and includes built-in fraud monitoring and compliance management. Finix caters primarily to software platforms, such as startups, SaaS companies, and e-commerce businesses, and has supported over 12,000 active merchants across the U.S. The company processes billions of dollars in payment volume annually, ensuring reliability with 99.999% uptime.