Incorporated in 1997, MLS Property Information Network Inc. is one of the leading multiple-listing services in the United States. Based in Shrewsbury, Mass., the company offers a database of properties for sale as well as full-public records for all of Massachusetts, Rhode Island and other areas of New England. It also provides a range of services in property updates, real-time property matches to buyers and sellers and complimentary listing transfers to third-party newspapers and websites. MLS Property Information Network Inc. also conducts one-on-one training on H3MLS.