John Hartman was a founder or co-founder of two companies (BioImage Corp. and Computational Biosciences, Inc., Ann Arbor, MI) where he worked for more years than he cares to admit in proteomics, genomics and bioinformatics. He also consulted with the University of Michigan and other clients in addition to working with Advaita Bioinformatics (Plymouth, MI)  before joining the Kretzler laboratory as a computational biologist in June, 2016.