$12,3B in revenues in 2017

Headquartered in Cambridge, Biogen is a leader in neurological and neurodegenerative diseases. It is the leader in multiple sclerosis, and has the first and only approved treatment for spinal muscular atrophy (SMA). It is focusing on Alzheimer’s disease, Parkinson’s disease and amyotrophic lateral sclerosis (ALS). Biogen has roughly 2500 employees in Massachusetts.