Century 21 Annex Realty has been serving the real estate industry since 1978. The company operates a network of more than 70 real estate professionals. It specializes in the buying, selling and leasing of commercial, industrial and residential properties. The company deals in luxury homes and estates, investment properties, condominiums, apartment buildings, single-family residences, office towers and shopping centers. Century 21 Annex Realty also serves individuals and corporations with relocation needs. In addition, the company offers rental property assistance and real estate consulting services. It is a part of Century 21 Real Estate, which is one of the largest residential real estate sales organizations in the world with more than 6,600 offices and over 100,000 real estate agents. Century 21 Annex Realty maintains a location in Hanover, Mass.