Biotech Manufacturing Companies in Connecticut

Connecticut has approximately 4,200 manufacturing establishments and 160,000 manufacturing employees. Connecticut is a precision manufacturing powerhouse, home to Pratt & Whitney, Sikorsky, and Electric Boat, with deep expertise in aerospace and defense components.

Connecticut contributes to the national biotech manufacturing landscape. 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 Connecticut include Hartford, Bridgeport, New Haven, Stamford, and Waterbury. These cities have concentrations of manufacturers across sectors including aerospace manufacturing, defense manufacturing, and medical device manufacturing.