- Century Longmai Technology Limited
- Address:Haidian District, Beijing, Beijing, China
- Demoks Intelligent Technology Co., LTD
- Address:daLiangDeSheng road no. 3, 15, Guangdong, China
- Singo Electronic Ltd. Co.
- Address:Shenzhen, Guangdong, China
- Crypton Electronic Co.Ltd
- Address:Bao'an, Shenzhen, Guangdong, China
- Keys Tech. (HK) Co., Ltd
- Address:b1213,Jindi bldg, Shenzhen, Guangdong, China
- Qingdao Windaka Technology Co., Ltd
- Address:No. 127 Huanghe East Road ,Qingdao Economic and technological zone, Qingdao, Shandong, China
- Shenzhen Probuck Technologies Co., Ltd
- Address:dalang, Guangzhou, China
- Shenzhen Crypton Electirc Co.Ltd
- Address:Shenzhen, Guangdong, China
- ZKteco Inc
- Address:Wuhe road ZK building, Shenzhen, Guangdong, China
- JIEAN Electronic & Hardware Factory
- Address:NO.9 street 10 ,delaibei road, xiaolan town, zhongshan city, Guangdong province, china, Zhongshan, Guangdong, China
- SHENZHEN EPORDO CO., LTD
- Address:Shenzhen, Guangdong, China
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