John McGreavey didn’t set out with a business plan to purchase a portable restroom operation. As a corporate accountant, he was searching for a sustainable business opportunity and let the results of a careful analysis do the talking. In 2016, he purchased Mini Biff of Hutchinson, Minnesota, a company he’s transformed and poised for growth in less than three years. His strategy is no secret — he’s just running it by the numbers.McGreavey was a British citizen employed by global food conglomerate Cargill for more than 30 years, working in the U.S. since 2000. Following a business restructuring, he accepted
