5 1 customer service is to integrate the data resources of the industry according to the requirements of the industry, with many channels, low cost and good effect, which is suitable for all industries. Zhongyun Zhitong is a leading integrated service provider of big data marketing in China, a big data technology company with data mining as its core, providing enterprises with "DMP+DSP" technology and platform services.

Zhongyun Zhitong Company is bigger.