Ferro Pfanstiehl Labs

Pfanstiehl is a premier specialized CDMO and manufacturer of high-purity, low-endotoxin carbohydrates, amino acids, and pharmaceutical ingredients. Founded in 1919 and headquartered in Waukegan, Illinois, the company is a critical supplier to the global biopharmaceutical industry, providing essential components for the stabilization of proteins, monoclonal antibodies, and vaccines. Formerly known as Ferro Pfanstiehl Laboratories during its tenure as a subsidiary of Ferro Corporation, the company now operates as an independent entity under private ownership. Pfanstiehl's expertise lies in cGMP-compliant chemical synthesis and purification, supporting clients from early-stage development through commercial-scale production. Their products are widely used in cell culture media and injectable drug formulations to ensure safety and efficacy.