ESEN is a high-tech enterprise with the collection of R&D, design, production, sales and installation on various equipments such as Experimental Zebrafish System and Biological Pure Water systems, established in the Economic and Technological Development District of Beijing in 1998. ESEN’s product was identified as independent innovation product and obtained the health permits of Beijing Government at the very earliest time, as well as got dozens of patents and the technology made up for the domestic blank. ESEN’s zebrafish experimental system is national first set of major technical equipment demonstration project in Zhongguancun. ESEN was identified as R & D institutions, patent pilot units and the national high-tech enterprises in Beijing, and passed the ISO9001 quality management system certification and ISO14001 environmental management system certification in 2002.

    In fifteen years, ESEN with excellent product quality and perfect after sale service, with a large number of professionals "constantly strive for perfection" work attitude, has won the domestic and foreign scientific research scholars favor, make ESEN products enjoy high reputation in both domestic and foreign customers, 

major customers include:(1)Beijing university and Tsinghua university , Fudan university ,Zhejiang university, Nankai university, Tongji University, Southwestern university and other colleges and universities;(2)The zebrafish experimental organism center, national Chinese Science Research Institute, China Academy of Medical Sciences, Chinese Academy of Agricultural Sciences, Chinese Academy of Sciences Institute of Hydrobiology, the Chinese Academy of Sciences Institute of city environment, Chinese Academy of Sciences Institute of modern physics, environmental protection department of Nanjing Institute of Environmental Sciences, Military Medical Science Academy of the PLA of Chinese PLA, Heilongjiang Fisheries Research Institute, Shandong Academy of science, Guizhou research center of physical testing and chemical analysis scientific research institutions and others;(3) Chinese center for disease control and prevention, Beijing center for disease control and prevention and others public institutions.

        Motto: Love and health is not only a personal happiness，but also the wealth of society!