Founded in 1976, the Sotheby's International Realty® (SIR) network was designed to connect the finest independent real estate companies to the most prestigious clientele in the world. Serving an international customer base, SIR provides local brokerage companies with a powerful marketing and referral program for luxury listings. In keeping with its stellar reputation, the SIR organization boasts an esteemed group of real estate professionals who understand the unique mindset of upscale clients seeking distinctive homes (or second and third residences). SIR supports its affiliates with a host of operational, marketing, recruiting, educational and business development resources. SIR affiliates also take advantage of the company’s existing technology infrastructure, making it easier for them to communicate and transfer information globally. Further, affiliates benefit from an association with the venerable, 260-year-old Sotheby's auction house.