Repligen Corporation is on the Cruelty Free Investing use of animals list because they use animals for drug testing and clinical trials.
The company stated in the following article that they conduct pre-clinical trials of their drugs on animals.
“The company added that it is launching the human clinical trial because preclinical animal testing showed promise in animals.” Read the following article
Repligen Corp. engages on the development, production and commercialization of products used in the process of manufacturing biological drugs. It offers upstream solutions, downstream solutions, and analytics. The upstream solutions offers XCell ATF System and cell culture supplements. The downstream solutions includes OPUS pre-packaged chromatography columns; Protein A affinity resins; and Protein A Ligands. The analytics involves ELISA kits. The company was founded by Alexander G. Rich in May 1981 and is headquartered in Waltham, MA. [Source: MarketWatch]
Company Website: https://www.repligen.com