No.463 Beijing Popularity Ranking No.51 Yizhuang Development Zone No.1 Smart Sensors No.1 Flow Meters No.2 Zhi Neng Chuan Gan No.3 Smart Water Services No.3 Fei Water Treatment No.5 Heating Supply No.5 Energy Services No.5 Heating Supply Technology No.6 Yi Qi / Instruments No.7 Energy Management No.7 Shui Chu Li Wei Hu No.8 Water Management 国家高新技术企业 高新技术企业 中关村高新技术企业 省级高新技术企业 市级高新技术企业 市级创新型中小企业