1994年成立房地產中介公司順馳集團，2003年成立房地產公司融創中國，2006年建立順馳不動產網絡（中國目前最大嘅房地產中介商之一）。2007年孫宏斌將順馳集團賣畀香港路勁基建集團。2015年9月，辭任融創集團行政總裁職務。目前擔任融創集團董事會主席。
In 1994, he established Sunco Group, a real estate agency, in 2003, Sunac China, a real estate company, and in 2006, he established Sunco Real Estate Network (one of the largest real estate agencies in China). In 2007, Sun Hongbin sold Shunchi Group to Hong Kong Road King Infrastructure Group. In September 2015, he resigned as the CEO of Sunac Group. He currently serves as the chairman of the board of directors of Sunac Group.