They are: Hangzhou Xiacheng Security Service Company, Hangzhou Gongshu Security Service Company, Hangzhou Jianggan Security Service Company, Hangzhou West Lake Security Service Company, Hangzhou Binjiang Security Service Company, Zhejiang Railway Security Service Company, Xiaoshan Security Service Company, Hangzhou Xiasha Development Zone Security Service Company, Lin 'an Security Service Company and Hangzhou West Lake Scenic Area Security Service Company.