Wiseman's career began at Michelman in 1981 when John Michelman hired him to be the very first salesman to sell the company's line of water-based specialty wax emulsions. Until that time, Michelman was involved in coatings for paper only.
Wiseman proceeded to become a leading force behind Michelman's growth in North America and was the company's first salesman in Europe and Asia. According to Steve Shifman, Michelman's president and CEO, "Marshall's dedication and sacrifice has been great. At one time, he relocated to China where he lived for three years while the company established a foothold in the Asia Pacific region. Marshall initiated and has nurtured many of the relationships we currently enjoy with current customers around the world, as well as with many of the agents and distributors around the globe who represent Michelman."