Covance科文斯, with headquarters in Princeton, New Jersey, is one of the worlds largest and most comprehensive drug development services companies with annual revenues greater than $1.7 billion, global operations in more than 25 countries, and more than 9,800 employees worldwide. Offering drug development solutions from preclinical through commercialization, Covance is a world-class provider of the following service lines.上海前尘生物有限公司:021-64689017 021-64689027上海市徐汇区南丹东路18号12楼A座；北京办事处：010-64847623 010-64855926 北京朝阳区大屯路2号楼科华商务大厦613室。