Business: MSC Income Fund, Inc.is a principal investment firm that has elected to be regulated as a business development company that primarily provides debt capital to private companies owned by or in the process of being acquired by a private equity fund and also provides customized long-term debt and equity capital solutions to lower middle market companies. The Fund’s investment strategy is to make debt investments in middle market companies and debt and equity investments in lower middle market companies. The Fund's portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. The Fund's lower middle market companies generally have annual revenues between $10 million and $150 million. The Fund's middle market debt investments are made in businesses that are generally larger in size than its lower middle market portfolio companies.