Shanghai Yongzheng Medical Science and Technology Co., Ltd. is one of the earliest clinical contract research organizations (CRO) established in China in 2004, focusing on providing full clinical services for pharmaceutical products research and development. Yongzheng is a CRO with 15 years of steady and sound running state. The headquarter is in Shanghai with 2 subsidiaries, "Bujin" and "Helpclin Data", which provides SMO and data management & biostatistics services respectively. Yongzheng covers more than 80% regions in China. Yongzheng has service outlets including but not limited to Shanghai, Beijing, Wuxi, Tianjin, Harbin, Changchun, Shenyang, Guangzhou, Nanning, Chengdu, Wuhan, Changsha, Zhengzhou, Nanchang, Xi 'an, etc.). There are over 200 employees which all have medical or pharmaceutical background. 80% of the core members have worked in multinational companies, received professional training from pharmaceutical companies and CRO, and have rich experience in clinical research of drugs and medical devices. Yongzheng has successively taken hundreds of clinical trials including Phase I~IV and post market trials. Yongzheng has experiences in collaborating with many clinical professional departments and therapeutic areas. Yongzheng concentrates on developing its core business such as trial management, data management & biostatistics and pharmacovigilance. Simultaneously, Yongzheng also develops other business which related to the core business, such as regulatory affairs, medical affairs and SMO. Yongzheng has been implementing the service concept of "Quality Oriented, Efficiency Prioritized, Innovation Driven". We focus on project management and consolidation of service foundation, which forms Yongzheng's service advantage.