Founded in 1975, the Grand Bank of Oklahoma, formerly known as Grand Lake Bank, provides a range of financial products and services. It is one of the leading banks in northeastern Oklahoma and operates through various branch locations. The bank offers checking, money market and savings accounts options. The Grand Bank of Oklahoma provides certificates of deposit and gift cards. It offers online bill payment and telephone banking solutions. In addition, the bank provides a variety of loans for equipment, construction, and real estate development and financing. The Grand Bank of Oklahoma administers a CDARS program. It also operates a grand adventures club. .