Whether you make musical instruments or mints, salon appliances or safes, this company has a strategy for you. Founded in 1986, American Capital invests in a diverse selection of middle-market companies both directly and through its global asset management business. It typically provides up to $300 million per transaction to companies for management and employee buyouts and private equity buyouts. The firm also directly provides capital to companies. Other investments include financial products such as commercial mortgage-backed securities and collateralized loan obligations. American Capital's portfolio consists of stakes in more than 150 companies and has a focus on manufacturing, services, and distribution. Ares Capital Corp agreed to buy American Capital for $3.4 billion in May 2016.