Join us for another tour with one of our premier local manufacturers, D&M Industries! D&M Industries was incorporated in April 1982. The name D&M was chosen to represent our heritage of doing business in the Dakotas and Minnesota. In the beginning years, D&M specialized in doors, frames and hardware for motels and apartment building. The company started out small with seven employees, and now over 40 years later they have 170 employee-owners in Minnesota and Wisconsin and three remote employees in other states across the country.