What are the famous it companies in Guangzhou and Shenzhen?

Huawei Technologies Co., Ltd. \x0d\ ZTE Corporation \x0d\ Tencent Technology (Shenzhen) Co., Ltd. \x0d\ Shenzhen Mindray Biomedical Electronics Co., Ltd. \x0d\ International Business Machine Technology (Shenzhen) Co., Ltd. \x0d\ Shenzhen Tencent Computer System Co., Ltd. \ Kingdee Software (China) Co., Ltd. \ Shenzhen Yihua Computer Co., Ltd. Yulong Computer Communication Technology (Shenzhen) Co., Ltd. \x0d\ Shenzhen Zijin Fulcrum Technology Co., Ltd. Shenzhen Kelu Electronic Technology Co., Ltd. Coolpad Software Technology (Shenzhen) Co., Ltd. \x0d\ Shenzhen Tianweier Communication Technology Co., Ltd. \x0d\ China Power Technology Group Co., Ltd. \x0d\ Shenzhen Huaqiang Intelligent Technology Co., Ltd. \ Shenzhen Huadong Tian Fei Network Technology Development Co., Ltd. \ Boko Information Industry (Shenzhen) Co., Ltd. \ Shenzhen Aoguan Computer System Technology Co., Ltd. \ Guanri Communication Technology (Shenzhen) Co., Ltd. \x0d\ Zhuo Wang Digital Technology (Shenzhen) Co., Ltd. Shenzhen Tongzhou Software Co., Ltd. \x0d\ Youchuang Technology (Shenzhen) Co., Ltd. \x0d\ Shenzhen Dashi Intelligent Co., Ltd. Shenzhen Anxin Digital Co., Ltd. \ Shenzhen Domain Computer Network Co., Ltd. \x0d Shenzhen Jinli Communication Equipment Co., Ltd. \x0d\ Shenzhen Yinsheng Technology Development Co., Ltd. \x0d\ Shenzhen Di Fang Computer System Co., Ltd. \x0d\ Shenzhen Hertai Intelligent Control Co., Ltd. \x0d\ Shenzhen Xiang Yan Software Technology Co., Ltd. \x0d\. Shenzhen Jacky Technology Co., Ltd. \x0d\ Yongtai Software Co., Ltd. \x0d\ Shenzhen thunder network Technology Co., Ltd. \x0d\ Hailianxun Information Network Technology (Shenzhen) Co., Ltd. \x0d\ Yuxing Technology Development (Shenzhen) Co., Ltd. \x0d\ Shenzhen Suicai Technology Development Co., Ltd. Shenzhen Tean Electronics Co., Ltd. \ Shenzhen Zhongxing Liwei Technology Co., Ltd. X0d\ Shenzhen Runtianzhi Image Technology Co., Ltd. Shenzhen Huagong Saibai Information Technology Co., Ltd. \x0d\ Shenzhen Secord Communication Technology Equipment Co., Ltd. \x0d\ Shenzhen Invigorate Electric Co., Ltd. \x0d\ Shenzhen Kangtuopu Information Technology Co., Ltd. \x0d\ Shenzhen Guodian Information Co., Ltd. Shenzhen Sigma Computer Technology Co., Ltd. \x0d\ Alstom Skyworth Technology Development (Shenzhen) Co., Ltd. \x0d\ Shenzhen Aozun Information Technology Co., Ltd. \ Shenzhen Zhongnong Net E-Commerce Co., Ltd. \x0d\ Shenzhen Zhongxing Jixun Communication Co., Ltd. \x0d\ Shenzhen Ming Microelectronics Co., Ltd. \ Shenzhen Lan Yun Industry Co., Ltd. \ Shenzhen Chuangguan Intelligent Network Technology Co., Ltd. Shenzhen Macquarie Electric Technology Co., Ltd. \x0d\ Innovation Branch Storage Technology (Shenzhen) Co., Ltd. \x0d\ Shenzhen Yixun Sky Network Technology Co., Ltd. \x0d\ COSCO Network Navigation Technology Co., Ltd. \x0d\ Shenzhen Kelu Software Co., Ltd. \x0d\ Shenzhen Shimahe Xin Microelectronics Co., Ltd.