Business First Bank, Denham Springs Branch Basic Info Reviews Routing Numbers Map & Direction Name: Business First Bank, Denham Springs Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 31635 Louisiana Highway 16 Denham Springs, Louisiana 70726 Livingston County View other branches Phone: 225-791-5850 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer065402290YY065405420YY From: To: