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Due to COVID quarantine guidelines and limited staffing, there may be times when our bank lobbies are available by appointment only. We encourage you to take advantage of the range of services available through Online Banking or through our Mobile Banking App. If you would prefer to speak to a banker or schedule an in-person appointment, please give us a call at (918) 491-9700.

Grand Bank


We're not only family owned, but we're an Oklahoma family. This may help explain the way we like to do business: person to person and face to face.

We’ve been taking care of families and the businesses they own for more than forty years. And as we’ve grown–one customer at a time–we’ve never forgotten what drew them in the first place: great bankers and staff who deliver on our very one-to-one way of banking. It's a principle that offers every customer the personal attention they deserve, and one that’s guided all three generations of Grand Bank.

History Photo


From simple beginnings reaching back three generations, Grand Bank understands the heart and soul of the entrepreneur. It’s where “family owned and operated” still means something, a rarity in today’s banking world. This proud legacy provides them with unique insight into what the success of a small business ultimately means. It’s about all those whose lives a business touches. Every customer and employee who walks in your door.

Grand Bank Timeline
1975  Founded in Grove, Oklahoma as Grand Lake Bank
1982  Grand Lake Bank purchased by Paul Buerge and sons
1989  Son Robin Buerge is named Chairman
1996  Second location opens in Claremore
1997  Loan production office opens in Tulsa
1998  Tulsa, now a full-service bank, is made headquarters
2005  Renamed Grand Bank with the addition of Bixby location
2007  Grove location sold to focus on greater Tulsa area location
2007  Grand Bank named in top 25 U.S. banks for return on equity
2013  Third generation Austin Buerge becomes President & CEO
2014  Grand Bank named in Top 200 Healthiest Banks in America
2015  Grand Bank named in Top 200 Healthiest Banks in America
2020  S&P Global named Grand Bank in Top 100 best performing community banks under $3 billion in assets

Grand Bank Cares

Almost every business is asked to donate money or “buy a table” at a local charity event, but a program we call Grand Bank Cares goes a step farther. Every month, somewhere in the Tulsa area, you’ll see employees of Grand Bank in their Hearts of Lions t-shirts, volunteering to support a local charity in need.

Recent examples include the United Way Day of Caring and events in support of Emergency Infant Services, Bixby Outreach, Irongate and Centers for Individuals with Physical Challenges.

Live United - Tulsa Area United Way

Why? Because we want to be a vital part of the communities we serve. That’s what good neighbors do.

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