Golden and Wong have expanded their large Chicago-based brokerage @properties into the At World holding company with the help of a controlling stake taken by private equity firm Quad-C in 2018. At World now includes a brokerage wing and national franchise brands @properties, Nest Realty and Ansley Real Estate. In 2021, the company acquired the Christie’s International Real Estate network and a long-term license of the brand name from Christie’s auction house.