DM Sales & Engineering Inc, founded in 1967 by David Mickel, specializes in thermoforming operations and is one of the most respected thermoforming companies in the United States. They offer a variety of materials, shapes, sizes, and volume capacity for thermoformed plastics. The company focuses on providing thermoforming services for consumer products, industrial, medical, and electronics packaging, including blister and clamshell packaging. DM Sales emphasizes customer service, quality, and innovation by implementing new technologies like 3D printing for prototyping. They prioritize care, collaboration, and safety for employees and customers, ensuring ethical and professional work practices.