Banking for tech companies


Stark Bank


Rafael Stark



Business Model


Investment Year


Founding Date



Sao Paulo, Sao Pauo - Brazil


Iporanga Early Stage II



General Partner

Guilherme Assis


YCombinator, Angels

Stark Bank

Stark Bank


Stark Bank is a fintech B2B, founded by Rafael Stark, in 2018, with the mission to simplify and automate banking transactions through technology in Brazil. It’s the first brazilian open banking company that offers an API, Excel, Google Sheets, Web Banking 



for companies to manage a high volume of payments in seconds. Companies of any size can scale their business and be more productive by eliminating manual process and payments errors with Stark Bank solutions. 

Stark Bank presents the fastest and easiest way to manage payments while providing a new standard of running a high volume of payments, helping entrepreneurs who, like her, wants to change Brazil for better with technology. 

Rafael Stark

Rafael Stark, Founder and CEO, is part of a generation that was born using technology in his life. Unhappy with the bunch of manual processes at the traditional banking system, he founded the Stark Bank to simplify processes and eliminate financial bottlenecks through technology. Rafael’s concept emerges from a combination of spotting a big problem of the financial market – manual process, payments erros, fraud, money laundry – with his entrepreneurial mind and non-conformism, he created Stark Bank, a banking API capable of processes, automatically, an high volume of payments, defeating slowness and human frauds, switching an old technology available since years of 90 that was inefficient, archaic, slowly, and open to fraud.



Rafael Stark is an engineer graduated from Aeronautics Institute of Technology (ITA), developer and serial entrepreneur from Stanford’s Technology Entrepreneurship course. Entrepreneur since he was 16 years old, Rafael loves to solve business problems through technology.