Biotech Manufacturing Companies in Washington

Washington has approximately 6,500 manufacturing establishments and 290,000 manufacturing employees. Washington is the nation's leading aerospace manufacturing state, dominated by Boeing's Everett and Renton assembly lines, with additional strength in food processing and tech manufacturing.

Washington is one of the leading states for biotech manufacturing. Biotech manufacturing encompasses the production of biologic drugs including monoclonal antibodies, cell and gene therapies, vaccines, and recombinant proteins. Unlike traditional pharmaceutical manufacturing, biotech production relies on living cell systems and requires specialized bioprocessing equipment, single-use systems, and advanced purification technologies.

Monoclonal Antibody Producers: Companies operating large-scale mammalian cell culture facilities for antibody drug production.

Cell Therapy Manufacturers: Facilities producing autologous and allogeneic cell therapies including CAR-T and stem cell products.

Gene Therapy Producers: Companies manufacturing viral vectors (AAV, lentivirus) for gene therapy applications.

Vaccine Manufacturers: Facilities producing vaccines using traditional and mRNA platforms, including fill-finish operations.

Contract Biologics Manufacturers: CDMOs specializing in biologic drug manufacturing, from cell line development through commercial production.

Major industrial centers in Washington include Seattle, Spokane, Tacoma, Everett, Renton, and Kent. These cities have concentrations of manufacturers across sectors including aerospace manufacturing, food processing manufacturing, and wood products manufacturing.