West

West Pharmaceutical Services is a provider of injectable drug containment and delivery solutions, working with established and emerging drug developers. Its products include prefillable syringe systems, vial containment solutions, self-injection devices, vial transfer devices, and cartridge components. The company also offers contract manufacturing, design and development engineering, analytical testing, drug handling, assembly and packaging, and regulatory services, including a combined offering called West Vantage for combination products.

This is a business-to-business supplier rather than a walk-in company, so most contact runs through account managers and the main line. West's global headquarters is on Herman O. West Drive in Exton. The company says its phone system returns calls within three business days, and urgent needs should go to an account manager.