Where is the massmutual office located in nc? Supervisory Office: 4350 Congress Street, Suite 300 Charlotte, NC 28209; Phone: 704-557-9600. MassMutual is a marketing name for Massachusetts Mutual Life Insurance Company (MassMutual) and its affiliated companies and sales representatives.Why choose massmutual carolinas? At MassMutual Carolinas, we listen closely to gain a thorough understanding of your goals and your dreams. We then provide you with guidance and expertise to help you make sound financial decisions that can help protect your future. We also help you protect your most important assets – your family.Are local sales agencies subsidiaries of massmutual? Local sales agencies are not subsidiaries of MassMutual or its affiliated companies. Agency officers are not officers of MassMutual. Financial services representatives are independent contractors and are not employees of MassMutual, its subsidiaries, or of general agents with whom they contract.Is massmutual the same as massachusetts mutual life? MassMutual is a marketing name for Massachusetts Mutual Life Insurance Company (MassMutual) and its affiliated companies and sales representatives. Local sales agencies are not subsidiaries of MassMutual or its affiliated companies. Agency officers are not officers of MassMutual.