Guangzhou City Information Research Institute Co., LTD. (Chinese abbreviation: City Information Institute;chinaDCI, founded in 1999 and headquartered in Guangzhou, is a geographic information service provider committed to providing solutions and professional services for smart cities, and is one of the top 100 enterprises in China's geographic information industry。 
      Chengxin focuses on smart cities，The mission is "geographic information makes the service everywhere"，To provide software products and application services based on geographic information to the government and the public，It is committed to promoting the country to achieve the new smart city construction goal of "ubiquitous services for the people, transparent and efficient online government, integrated and innovative information economy, precise and fine urban governance, and safe and reliable operation system"。 
      Chengxin is recognized by Guangdong Province as "high-tech enterprise", "software enterprise", "intellectual property advantage Enterprise", "contract-abiding and creditworthy Enterprise", "Integrity demonstration Enterprise".，Recognized by Guangzhou as "Innovative Pilot Enterprise" and "Small Giant Enterprise of Science and Technology"，It has Grade A surveying and mapping qualification and system integration Grade II qualification，Passed CMMI5 certification and ISO9001:2008 international quality system certification。 
      Chengxin is committed to "be the best geographic information service brand", since its establishment, it has successfully implemented more than 1,000 projects across the country, and the projects implemented have won the Science and Technology Progress Award of the Ministry of Science and Technology, the key promotion project of the Ministry of Construction, the Geographic information Technology Progress Award and the geographic Information Excellent Project gold Medal。

Main enterprises of Chengxin Exchange: 

Chengxin Disai (Beijing) Technology Co., LTD

Shanghai Star City information Technology Co., LTD

Tianjin Yuecheng Information Technology Co., LTD