MK Systems, and its subsidiaries Associated Equipment and Klotz Environmental Products, are sales engineering companies representing manufacturers of air handling and related process components and systems, including fans, blowers, air curtains, dampers, silencers and heat exchangers along with custom heating and ventilating packages. MK is an Illinois corporation, and has been a member of the Manufacturers' Agent National Association ( MANA ) since 1983. The headquarters office is in Elk Grove Village, Illinois, just outside Chicago. MK Systems also maintains an office in Hartland, Wisconsin, near Milwaukee and an associated office in Dubuque, IA. Our basic approach at the customer level is to develop long-term relationships based on knowledgeable and reliable service over an extended period of time. We maintain a consistent philosophy of providing equipment and services which truly benefit our customers.