Founded in 2009, the Greenwich-based investment bank serves public companies, privately owned businesses, and entrepreneurs in areas such as mergers and acquisitions, capital raising, and transaction advisory. Unlike large Wall Street firms that depend on large clients and transactions, M.M. Dillon & Co. focuses on the middle market, where clients often require guidance through complex situations and transactions. The firm also offers financial management and business modeling services, catering to sectors such as healthcare, technology, media, and telecommunications.