GROWTH Bigger Better? Although Martin Business Group is on a short list of the largest and most tenured office equipment dealers in the state, our growth has come over a 25 year period, with the same two owners who started the company guiding the company today. It is through experience that we plan our growth in concert with our ability to offer world class customer service and a consultative approach to our clients' technology needs. We offer our clients throughout southeast Wisconsin and northeast Illinois the ability to streamline their purchasing by directing their business to one source. Our sales territory includes Walworth, Racine, Kenosha, Rock, Green and Dane counties in Wisconsin, and McHenry, Boone and Winnebago counties in Illinois.