The Washington Business Journal recently released its 2025 list of the 50 largest bioscience employers in the Washington metropolitan area. Seven companies located in the City of Rockville’s Biotech Corridor were included in the rankings, based on their reported number of metro-area employees.

The Biotech Corridor is home to a concentration of bioscience companies and research institutions concentrated in Rockville. The Corridor’s biotech and life sciences companies feature specializations including clinical research, diagnostics, biopharmaceuticals, and biologics manufacturing. The City of Rockville serves as a hub due to its proximity to federal health agencies, academic institutions, and established industry infrastructure.

The following companies within the City of Rockville are ranked among the region’s largest bioscience employers:

• #2 Emmes – 401 N. Washington Street, #700 Rockville, MD 20850
• #7 Meso Scale Diagnostics – 1601 Research Boulevard, Rockville, MD 20850
• #14 Otsuka U.S. – 2440 Research Boulevard, Rockville, MD 20850
• #20 Amgen Inc. – Research West II, 2400 Research Boulevlard
• #24 I-MAB Biopharma Inc. – 2400 Research Boulevard, #400 Rockville, MD 20850
• #26 Maxim Biomedical – 1500 East Gude, Suite A , Rockville MD 20850
• No Rank – Aurinia Pharmaceuticals – 77 Upper Rock Circle, #700, Rockville, MD 20850

View the list of Washington Business Journal’s 2025 ranking of bioscience employers in the region at bizjournals.com/washington/subscriber-only/2025/08/08/here-are-the-50-largest-bioscience-employers-in-greater.html