Key·stone /'ké stõn/ (noun):
a central stone at the summit of an
arch, locking the whole together.
Welcome to Keystone Bank
We opened our doors in Central Texas on October 15, 2018, with a maverick and entrepreneurial approach to community banking that truly puts the client first.
We’re proud to be one of the fastest-growing banks in Texas, founded on the principles of integrity, honesty, and resilience.
Over the course of our 28-year career in banking, we have learned that good banking is about one thing: serving you by making connections, which is one reason our name is so important to us.
Just as a Keystone is the central connection point for an arch, we want to help you make the connection between where you are now and where you want to go financially. That starts with our team of experienced bankers, who both live and make decisions locally, connecting with you to learn more about your unique needs.
Then, we do the most non-banking thing we can: we build a custom plan to serve you. Community banking is about solving problems – not for customers – but for neighbors.
Everything about our operation puts the client first – from the way we build relationships to why and how we’ll use technology. We are in the trenches with our clients, keeping a constant ear to the ground for how we can best help them overcome challenges.
Fast forward to February 1, 2026, and we officially merged with Third Coast Bank, a public Texas community bank with the same passion as ours. This partnership unites our legacies, our teams, and our vision for the future, reflecting our mutual dedication to building strong relationships, now under the name of Keystone Bank, a division of Third Coast Bank.
Together, we are a leading Texas-based institution with over $6 billion in assets and 21 branches throughout Texas, operating under the Third Coast name and brand. We provide a robust network of branches in Austin, Dallas-Fort Worth, Greater Houston, and San Antonio, along with the convenience of digital banking, all while ensuring you receive the exceptional personal service you expect from your community bank.
We look forward to connecting with you soon.
— Jeff & Bryan
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Our Mission
Helping you be the Keystone for your family, business and community.
Our Values
TAKE CHARGE
ENCOURAGE CREATIVITY
CENTER AROUND COMMUNITY
LEAD IN INNOVATION
DO WHAT IS RIGHT
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