Vets Plus, Inc. (VPI), located in Menomonie, Wisconsin, is a leading manufacturer of animal health and nutrition supplements ... for livestock and companion animals. Founded in 1990, VPI creates custom formulations for manufacturing innovative probiotics, nutritional supplements, and pet treats in a wide variety of formats. VPI is committed to quality and maintains SQF Level 3 certification, NASC membership and AAFCO compliance. read more