Simmons & Company International is one of the largest independent investment banks specializing in the energy industry, offering M&A advisory, capital markets execution and investment research. Simmons & Company International has offices in Houston, Aberdeen, London and Dubai. Simmons & Company International was founded in 1974 by Matthew R. Simmons with the focus of providing financial advisory services to a growing energy service sector. In 2009, Matt Simmons retired to become "Emeritus Chairman". As of June 16, 2010, Matt Simmons retired from the company.
Simmons currently employs approximately 150 individuals and is active in the energy services and equipment, midstream/downstream, exploration and production, and alternative energy sectors. From January 2008-September 2012, Simmons & Company completed 167 transactions totaling approximately $34 billion in value, with a majority of its focus towards M&A transactions.
Clients of Simmons & Co have included energy companies such as FMC Technologies and Hunting PLC, as well as many other energy companies.