WEST PHARMACEUTICAL SERVICES INC (WST)

West Pharmaceutical Services is a global manufacturer that designs and produces integrated containment and delivery systems for injectable drugs and healthcare products. Its offerings include proprietary packaging, containment solutions, reconstitution and transfer systems and drug delivery systems, along with contract manufacturing, analytical lab services and integrated solutions. The company emphasizes product quality and regulatory compliance, and aims to help customers deliver safe, effective drug products to patients.

The business is organized into two segments. The Proprietary Products segment offers elastomer and primary containment products such as stoppers, seals, and syringe and cartridge components. It also offers drug delivery devices, including self-injection devices for at-home use, and administration systems for reconstitution, mixing and transfer. Its containment solutions include vials, syringes, plungers and cartridges that address glass incompatibility and breakage. It also provides films, coatings, washing, vision inspection and sterilization services, plus analytical lab services, pre-approval packaging support, engineering development, regulatory expertise and after-sales technical support. The Contract-Manufactured Products segment designs, manufactures and automatically assembles complex devices using multi-component molding, in-mold labeling, ultrasonic welding, clean room molding and device assembly. These include customer-owned components and devices for surgical, diagnostic, ophthalmic, injectable and other drug delivery systems, and consumer products.

Proprietary Products customers are mainly major biologic, generic and pharmaceutical drug companies that incorporate West's components into injectable products. Contract-Manufactured Products customers include large pharmaceutical, diagnostic and medical device companies, which typically incorporate the components into their own manufacturing lines. Products are sold mainly through West's own sales force and distribution network, with limited use of contract sales agents and regional distributors. Sales outside the U.S. were 56.7% of consolidated net sales in 2025. The ten largest customers accounted for 47.6% of net sales, and one customer represented 15.8%, or $485.9 million, across both segments.

West's main raw materials are elastomers, aluminum and plastic. It relies on single-source suppliers for certain critical materials and buys some in the open commodities market. Proprietary Products has manufacturing facilities in North and South America, Europe and Asia, with affiliated companies in Japan and Mexico. Contract-Manufactured Products has facilities in North America and Europe. Certain key proprietary products and processes are exclusively licensed from Daikyo. Competitors in proprietary lines include Datwyler and Aptar, and in contract manufacturing they include SMC Ltd., Phillips Medisize, Sharp and PCI Pharma Services. The company maintains research-scale production facilities and laboratories, and is regulated by agencies such as the FDA, the European Medicines Agency and China's National Medical Products Administration. It employed about 10,800 people at December 31, 2025, and is headquartered in Exton, Pennsylvania.