"Prior to its initial public offering, MasterCard Worldwide was a cooperative owned by the 25,000+ financial institutions that issue its branded cards." [1] [1

"Prior to its initial public offering, MasterCard Worldwide was a cooperative owned by the 25,000+ financial institutions that issue its branded cards." [1] [1] https://en.wikipedia.org/wiki/MasterCard https://en.wikipedia.org/wiki/MasterCard