Fidelity National Information Services, Inc. is an American multinational corporation which offers a wide range of financial products and services. FIS is most known for its development of Financial Technology, or FinTech. Annually, FIS facilitates the movement of roughly US$9 trillion through the processing of approximately 75 billion transactions in service to more than 20,000 clients around the globe. FIS was ranked second in the FinTech Forward 2016 rankings. After acquiring Worldpay for $35 billion in Q3 of 2019, FIS became the largest processing and payments company in the world. Wikipedia