Gibson Sotheby's International Realty began in 1962 as a Boston-based real estate firm founded by Betty Gibson. The company operates as a residential brokerage focused on luxury property sales, rentals, and marketing, and it is affiliated with the Sotheby's International Realty network. Its work centers on Massachusetts and nearby New England markets, with services that support buyers, sellers, and renters across a broad regional footprint. The business combines local brokerage experience with a globally recognized real estate brand. In recent years, the company has continued to serve as a major regional brokerage serving a wide mix of residential property needs.