MainSource Bank was a community-focused financial institution headquartered in Greensburg, Indiana, which in May 2018.
Since the transition, all online banking and customer support functions are handled through First Financial Bank's platforms: mainsource*bank
: All existing accounts and client relationships were converted to First Financial's systems during the merger weekend. Current Resources for Clients and business checking.
: Commercial lending, treasury management, and business checking. mainsource*bank