Pfanstiehl, Inc. Employee Directory
Pharmaceutical ManufacturingIllinois, United States51-200 Employees
Pfanstiehl, Inc. is a mid-sized pharmaceutical ingredient manufacturer based in Waukegan, Illinois, with a history spanning more than a century. It produces injectable parenteral excipient-grade carbohydrates, amino acids, and buffer salts that are high-purity, low endotoxin, and low in metals. These excipients are used to support the safety and stability of pharmaceuticals and vaccines and are supplied to drug developers for biologics, vaccines, and related downstream processing. The company operates within the pharmaceutical manufacturing sector, focusing on specialty excipients with stringent quality standards. In 2025, Pfanstiehl announced the introduction of a high-purity glycine injectable-grade excipient intended for biologics, vaccines, and downstream protein purification. Historically, its launches have included ingredients such as L-histidine and mannitol, manufactured in the United States under cGMP conditions.