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Katie Tzitzouris

SVP, Senior Business Banker


Contact Katie Tzitzouris

Katie Tzitzouris is a Senior Vice President and Senior Business Banker who specializes in knowing her clients and understanding how their businesses operate. Clients say that Katie provides them with the thorough, responsive support that they need to thrive.


A member of the MainStreet Bank team since 2018, Katie began her financial services career in a management training program at a regional bank in Connecticut before relocating to Virginia in 2005. Throughout her years in Northern Virginia, she has worked for community banks, using her talents and expertise to directly impact the businesses and communities where she lives and works. 


Katie holds both an MBA with honors and a BSBA with a concentration in Economics from Bryant University in Rhode Island. She is a member of the Board of Directors of the Dulles Regional Chamber of Commerce and Co-Chair of its Corporate Social Opportunity Committee. She also serves on the United Way of the National Capital Area’s Loudoun Regional Council.


For as long as she can remember, Katie has been passionate about her responsibility to give back to those around her. Through her community engagement, she helps clients make connections that can help their businesses grow. Katie is pleased to be part of the MainStreet Bank Team where her talents and efforts are supported and encouraged.


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