Cyagen Biosciences is a 400-employee company headquartered in Santa Clara, California, with additional locations in Germany, ... Japan and China. Cyagen is the world's largest provider of custom-engineered mouse and rat models. Cyagen's services have become well known for their top quality, full guarantee, and competitive prices. Cyagen is also the world's leading provider of vector construction and virus packaging services through its highly innovative online interactive platform VectorBuilder.com. Additionally, Cyagen offers a comprehensive series of stem cell products for research use, including cell lines, media, and differentiation kits. read more