CENTURY 21, Circa ’72 and CENTURY 21 Thompson Real Estate. Our REALTORS® have been serving the Concord NH & Central New Hampshire Real Estate buyers & sellers with all types of Real Estate transactions for over 40 years! Our Real Estate Agents strive to be professional, attentive and knowledgeable to give all our clients the BEST Real Estate service in New Hampshire! Whether you are buying or selling your home or business, give us a call. You’ll be glad you did!