Pinnacle Bank, a Tennessee Bank Share: Banks & Credit Unions Pinnacle Bank, a Tennessee Bank Visit Website 2020 Cahaba Road Mountain Brook, Alabama 35223 (205) 946-2792 About Map About Pinnacle is much more than a bank. It's a place for people to find true partners for their business and personal finances that provide distinctive service and effective advice. What's Nearby? Distance: 5 10 15 20 25 50 mi.