GemPharmatech Co., Ltd., a contract research organization, provides genetically engineered mouse models and preclinical research services to the scientific community worldwide. The company offers mouse models, including knockout and conditional knockout mouse, knock-in mouse, point-mutation mouse, transgenic mouse, immunodeficient mouse, germ-free mouse, and tool mice models, as well as operates wild mouse project. It also provides custom model generation, preclinical testing, germ-free and microbiome, cell lines and customization, custom breeding, animal quality testing, and other services. The company has a strategic alliance with Memorial Sloan Kettering Cancer Center (MSK) to accelerate the discovery of new therapeutic antibodies. The company was founded in 2017 and is headquartered in Nanjing, China.