Main Street Capital is a principal investment firm primarily focused on providing debt and equity financing to lower middle market (LMM) companies and debt capital to middle market (Middle Market) companies. The portfolio investments of Co. and its subsidiaries are made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in various industry sectors. Co. invests primarily in secured debt investments, equity investments, warrants and other securities of LMM companies and in secured debt investments of Middle Market companies. Co.'s external asset management business is conducted through its MSC Adviser I, LLC subsidiary.