Scientific Protein Labs

Scientific Protein Laboratories (SPL) is a long-established, privately-held CDMO with a core focus on biologics derived from natural sources and microbial fermentation. The company operates from a cGMP facility in Waunakee, Wisconsin, and has built a strong reputation as a leading global supplier of heparin and pancreatin APIs. SPL leverages its deep expertise in extraction, purification, and process development to offer end-to-end contract services, supporting client products from early development through commercial scale-up. Its business model combines the sale of proprietary specialty APIs with fee-for-service contract development and manufacturing.

Specialized platform for extraction, isolation, and purification of APIs from biological sources (animal tissues, plants) and microbial fermentation for therapeutic proteins. Core expertise in complex natural product chemistry and cGMP manufacturing.

SPL competes in a specialized niche. It faces competition from other API suppliers (e.g., Bioiberica in heparin) and larger, full-service biologics CDMOs (e.g., Lonza, Samsung Biologics) that offer fermentation and cell culture services. Its key competitive advantages are decades of specific expertise in natural product extraction and purification and a reputation for deep regulatory knowledge in this complex area.