No.291Beijing Popularity RankingNo.4 Shijingshan DistrictNo.1 Yi Tai Nets TechnologyNo.2 Shu Ju Chuan ShuNo.2 Surveillance SystemsNo.3 Reinforcement SwitchesNo.3 Data ManagementNo.8 Data SafetyNo.9 Industrial ControlNo.9 EmbeddedNo.14 Gong Ye Hu Copies NetsNo.16 Zi Dong ControlNo.16 Data ServicesNo.18 Zhi Hui Cheng Shi创新型企业自主创新示范企业单项冠军企业理事长单位高新技术企业瞪羚企业