Reliant Bank, Gallatin Branch Basic Info Reviews Routing Numbers Map & Direction Name: Reliant Bank, Gallatin Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1204 Nashville Pike Gallatin, Tennessee 37066 Sumner County View other branches Phone: 615-575-7200 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer064109044YN064109167YY From: To: