No.247 Dongcheng District Popularity Ranking Beijing No.3 Hui Yi Dian Hua No.6 Enterprise Safety No.6 Smart Mines Mountain No.13 Video Conferencing No.18 BeiDou Navigation No.27 Zhi Hui Scheduling No.29 An Quan Fang Hu No.40 Trading No.54 Xin Chuang Chan Industries No.65 Xin Xi Xi Tong Ji Cheng No.68 Hang Ye Xin Informatization No.70 Operating Systems 市级高新技术企业 高新技术企业 瞪羚企业 省级高新技术企业 软件著作权 软件产品登记证书 科技型中小企业 省级创新型中小企业 市级创新型中小企业 国家高新技术企业