1. HOLLEY (Top Ten Electric Meter Brands, in 197, China Famous Brand, China Famous Brand, Zhejiang Famous Brand, Zhejiang Famous Brand, High-tech Enterprise, and Huali Instrument Group Co., Ltd.)
2. Samsung Electric (China Famous Brand, China Famous Brand Product, High-tech Enterprise, one of the largest electric meter manufacturers in China, Ningbo Samsung Electric. Top Ten Meter Brands)
3. CHINT (Top Ten Meter Brands, National High-tech Enterprise, China Well-known Trademark, China Famous Brand Product, Chairman of Electrical Instrument Branch, Zhejiang Zhengtai Instrument Co., Ltd.)
4. Weisheng (China Well-known Trademark, China Famous Brand, Top Ten Meter Brands, China Leading Energy Metering Equipment System and Service Provider, High-tech Enterprise, Hunan Famous Trademark, Weisheng Group Co., Ltd.)
5. jeni (a high-tech enterprise specializing in the research and development of smart electric meters, a famous brand product in China, one of the most competitive enterprises in the industry, and one of the top ten electric meter brands, Jiangsu jeni Electronics Co., Ltd.)
6. ABB (a global top 5 enterprise, a leader in the field of electric power and automation technology, ABB (China) Co., Ltd., Top ten electric meter brands)
7. Siemens (one of the largest electric engineering and electronics companies in the world, top ten electric meter brands, Fortune 5 enterprises and Siemens (China) Co., Ltd.)
8. Haoningda (a high-tech Sino-foreign joint venture integrating scientific research, development, production, sales and service, a national high-tech enterprise, Shenzhen Haohao). Top ten electric meter brands)
9. Great Wall Development (started in 1985, top ten electric meter brands, one of the makers of domestic electric meter industry standards, the world's leading electronic product R&D and manufacturing enterprise, Shenzhen Great Wall Development Technology Co., Ltd.)
1. Kelu CLOU (national high-tech enterprise, Guangdong famous trademark, top ten electric meter brands, China leading electric equipment manufacturer, Shenzhen Kelu Electronic Technology Co., Ltd.