World Leader in Heparin and Pancreatic Enzymes

Scientific Protein Laboratories (SPL) has been a leading global supplier of high quality active pharmaceutical ingredients (APIs) for nearly three decades. We specialize in cGMP biopharmaceutical manufacturing and are among the largest commercial suppliers of Heparin Sodium USP, Pancreatin USP, and Pancrelipase USP. We serve the pharmaceutical, veterinary, and food industries globally. Manufacturing facilities are located in Waunakee, Wisconsin and through our Joint Venture, Changzhou SPL located in Changzhou City, China.

Biopharmaceutical Development and
Manufacturing Services

Beyond supplying high quality proprietary APIs, we provide contract process development & cGMP manufacturing services, including natural products extraction, fermentation and purification. Within the still-young biopharmaceutical industry, we are among a small handful of companies with the established successful track record in efficient process development, analytical testing, quality assurance, and regulatory support required to provide our customers with their cGMP compliant APIs at all phases of clinical development, straight through to commercial launch.

Nimble, Responsive, Focused

As a truly independent company, SPL is extremely nimble, entrepreneurial and customer-focused. When you work with SPL, you work with key decision-makers and we waste no time on "corporate speak" or inter-divisional "wrestling matches". While we retain the levels of quality and compliance from our “Big-Pharma” roots, we also provide the agility and flexibility of a small company that is highly responsive to your specific needs.