OTS R&D provides research and development services with a focus on thermal and energy conversion systems. Much of the work centers around the HVAC&R and automotive industries. It provides consulting services, software development, educational workshops, and experimental assistance for a variety of customers and clients.

Located outside Baltimore, Maryland, Powrmatic, Inc. is a well-known, long-established manufacturer of heating, cooling, and air-cleaning equipment for the industrial and commercial marketplace. A subsidiary of the Stamm International Group, Powrmatic manufactures a complete line of direct-fired and indirect-fired heaters, cooling systems, and media and electrostatic air cleaners that can be customized to fit customer needs.