Biogen Employee Directory
Biotechnology ResearchMassachusetts, United States5001-10000 Employees
Biogen has about 7.8K employees across 4 continents, most of them in North America. By country, the largest groups are United States Of America (66%), Switzerland (6%) and United Kingdom Of Great Britain And Northern Ireland (3%). Administrative and Biotechnology make up 33% of the profiles with a known department. Biogen's workforce spans 40 departments. Biogen's workforce fell 15% between July 2025 and July 2026.