Siegfried Holding AG

Siegfried Holding AG is a leading global Contract Development and Manufacturing Organization (CDMO) with a strong focus on Active Pharmaceutical Ingredients (APIs), pharmaceutical intermediates, and finished dosage forms. Founded in 1873 and headquartered in Zofingen, Switzerland, the company has more than 150 years of pharmaceutical manufacturing expertise. Siegfried serves many of the world’s leading pharmaceutical and biotechnology companies by providing integrated development, scale-up, and commercial manufacturing services.

The company specializes in the production of APIs, highly potent active pharmaceutical ingredients (HPAPIs), controlled substances, sterile products, and complex chemical compounds. Its advanced process development capabilities, modern manufacturing technologies, and global production network enable customers to efficiently transition from early-stage development to commercial manufacturing. Siegfried continuously invests in automation, green chemistry, process optimization, and digital manufacturing to improve efficiency and sustainability.

Operating manufacturing and development facilities across Switzerland, Germany, France, Spain, Malta, the United States, and China, Siegfried adheres to the highest international quality and regulatory standards. The company maintains long-term partnerships with innovative pharmaceutical companies by providing reliable supply chains, regulatory expertise, and high-quality manufacturing solutions. Through continuous scientific innovation and operational excellence, Siegfried has become one of the world’s most trusted API manufacturing partners.