First Financial

MainSource Bank was a commercial banking institution that offered a variety of financial services, including accepting deposits and providing consumer, commercial, agribusiness, and real estate mortgage loans. The bank also offered safe deposit facilities, personal and corporate trust services, and other corporate services such as letters of credit and repurchase agreements. With approximately 80 branch offices, MainSource operated primarily in Indiana, Illinois, Ohio, and Kentucky. Additionally, it had several non-banking subsidiaries, including MainSource Insurance, LLC, Insurance Services Marketing, LLC, MainSource Title, LLC, MainSource Risk Management, Inc., and New American Real Estate, LLC. However, MainSource is no longer active as a banking institution.

Oak Street Funding LLC, established in 2003 and headquartered in Carmel, Indiana, specializes in providing tailored commercial financing solutions to insurance agencies, managing general agents (MGAs), program administrators, investment advisors, and certified public accountants (CPAs) across the United States. The company offers a range of products including retail agency loans, MGA-broker loans, premium financing, commission purchase, loan servicing, succession loans, recapitalization loans, working capital lines of credit, and interest-only options. Additionally, Oak Street Funding provides third-party loan servicing for financial institutions. As of August 14, 2015, the company operates as a subsidiary of Oak Street Holdings Corporation.