Eli Thomssen is a founder and board member of Esperovax. He spent most of his career working in the animal health division for The Upjohn Company, serving as vice president of Business Development and Strategic Planning. He is also a founding member of startup investment firms Apjohn Group and Ka-Zoo Angels (affiliated with Grand Angels, Grand Rapids, Michigan).
Thomssen has also served as a board member for notable companies such as ProNAi Therapeutics, Axenic, Armune BioScience, Vestaron, and most recently Adlore Inc. He was also a senior consultant at Brakke Consulting until 2001 before becoming the founding principal at Apjohn. Thomssen earned a Bachelor of Science degree from the University of Nebraska and an MBA from Western Michigan University.