About Us


Aragen Bioscience is a leading contract research organization focused on accelerating product development through high quality science, professionalism and innovation. Our integrated preclinical research offerings include: antibody discovery, antibody humanization, recombinant protein production and purification, stable cell line development as well as cell-based assays and in vivo models of disease. Our team has been chosen for their scientific experience, expertise and diversity. We pride ourselves in our ability to understand each client’s unique needs both from a scientific as well as business perspective. This enables us to be not only a high quality service provider but also a preferred R&D partner. We are located in Morgan Hill, California. Our predecessor, Sierra BioSource, was founded in the San Francisco Bay Area in 1993.

Aragen's 15,000 sq.ft. preclinical research facility includes a 8,500 sq.ft. state of the art vivarium.

Your Preferred R&D Partner

We offer a full range of contract research services from routine projects to the most complex, highly customized study designs. Each of these services can be applied to the research, optimization and development phase of a project. Every project is well documented and schedule-driven. Communication and collaboration with the clients is a priority, which gives you control over the entire process. Our customer dedicated research teams ensure your project gets the attention and focus it deserves to lead to successful outcomes.