Mark Natterman has operated his own small HVAC company in Baltimore for 19 years after working for another company for 16 years. His began as a residential and light-commercial contractor and has evolved into a full mechanical contractor with a strong customer base in the restaurant and craft brewery business. Recent projects include a mechanical renovation of the Hard Rock Cafe in Washington, D.C., and Baltimore’s Union Craft Brewery. Natterman says his experiences in different aspects of the HVAC and sheet metal trade give him a unique perspective as a former employee, manager and current owner. Contact him at email@example.com.