Scientific Protein Laboratories (SPL) has been a leading global supplier of high quality active pharmaceutical ingredients (APIs) for over 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. Our manufacturing facility is located in Waunakee, Wisconsin.