Novus International, Inc. is an American animal health and nutrition company headquartered in St. Charles, Missouri. Novus is privately owned by Mitsui & Co. and Nippon Soda Co., Ltd. and operates in over 90 countries. Novus' products include amino acids, organic trace minerals, feed preservatives, and various nutrition and health products. Its customers include animal nutritionists, veterinarians, and individual animal owners.