Ningbo Donghai Group Co., Ltd. was founded in 1973 and is a service-oriented manufacturing enterprise specializing in the R&D and production of metering instruments and smart water management technologies. With annual revenue exceeding RMB 500 million, the company has been awarded the "China Standard Innovation Contribution Award" and named a "National Intellectual Property Advantage Enterprise." It has received more than 10 "Zhejiang Province and Ningbo City Science & Technology Progress Awards" as well as the "Ningbo Municipal Government Quality Award." It is the only enterprise in Zhejiang Province to receive both domestic and international "Defined Quality" dual certification and was among the first batch of national-level specialized, high-end and innovation-driven "Little Giant" enterprises.
The company independently develops core products including high-precision smart water meters, intelligent pressure gauges, leakage early-warning devices, zoned leakage control systems, and smart water management platforms. Its water meter portfolio covers the full DN8‒800 caliber range. Multiple products have obtained EU MID certification, EU OIML certification, and BV wireless remote transmission module certification, pioneering the entry of a domestic independent brand into Europe's core market. The products are primarily applied in water utility metering and serve leading national water groups such as China Water, Capital Group, Beijing Enterprises Group, and Veolia, while being exported to more than 40 countries and regions in Europe, South America, and Southeast Asia. Donghai's flagship products rank among the top in domestic market share, with its high-end intelligent positive-displacement water meters holding the No.1 position in China.
With over fifty years of deep expertise in the metering field, Donghai Group has built a smart metering ecosystem integrating "hardware + software + service solutions." It operates a provincial key enterprise research institute for smart water technology, a CNAS-accredited national laboratory, and a European DH R&D center. Possessing a complete specialized manufacturing chain for intelligent metering instruments, the company has extended from R&D and manufacturing into comprehensive services, establishing a full-chain water-saving technology system for smart water management. As an industry pioneer in exploring the contracted water-saving model and driving industrial upgrading, Donghai has made breakthroughs in critical core technologies such as water-saving and leakage control and big-data cloud platforms for smart water affairs. Its urban water supply network leakage control technology and related instruments have reached internationally advanced levels, filling multiple domestic gaps.
