Certain Co., Ltd. was established in 2005, the group headquarters is located in Baixia high-tech industrial Park. It includes more than ten wholly-owned subsidiaries such as Jiangsu Shouping Information Industry Co., LTD., Jiangsu Houxuenet Information Technology Co., LTD., Hangzhou Shouping Technology Co., LTD., Jiangsu Xungong Information Technology Co., LTD. Covering Nanjing, Hangzhou, Nantong, Jiaxing and other core cities in Jiangsu and Zhejiang regions, it is an influential information industry group in East China.

Certain Co., Ltd. has always been adhering to the principle of "improving the network marketing ability of Nanjing enterprises", using its own professional network marketing technology to provide professional and reliable services for Nanjing enterprises. At present, the number of employees of the group exceeds 2,000, and the number of enterprises serving Nanjing has exceeded 20,000.