MassMutual Financial Group

Founded in 1851, Massachusetts Mutual Life Insurance Company (MassMutual) is an American mutual life insurance company with 1,800 offices and 13 million clients worldwide. MassMutual is one of the largest life insurance companies globally and was ranked 94th in the Fortune 500 list (as of 2015). The company has revenues of $25 billion (2010) and assets under management of $448 billion (2010).