Cincinnati Sub-Zero - CSZ, A Gentherm Company

About Cincinnati Sub-Zero

We have proudly supplied world class temperature management solutions to our customers for over 75 years. Throughout this time, we have evolved from manufacturing industrial freezers into a leading supplier of patient temperature management products, environmental simulation chambers, and testing services.

We are a wholly owned subsidiary of Gentherm, the global market leader and developer of innovative thermal management technologies. We are comprised of three divisions; Medical, Industrial, and CSZ Testing Services. Our medical division manufactures a full line cold therapy and heat therapy products that regulate a patient’s body temperature during and after surgery. Our industrial division manufactures a broad range of environmental chambers that simulate temperature, humidity, altitude and vibration conditions for product testing and storage. Our testing services division is an A2LA accredited laboratory providing a full range of climatic testing and independent qualification testing services. Although our products & services are specific to each of our three divisions, each division leverages and builds upon the successes of the others.

Located in Sharonville, Ohio, our headquarters is spread among two buildings with well over 150,000 square feet of manufacturing space. The medical division manufacturing and offices are located in the north building as well as shared services and standard product manufacturing for the industrial division. The south building houses industrial offices and custom chamber manufacturing along with the CSZ Test Laboratory. Our testing division has a second laboratory located in Sterling Heights, MI.


Our mission is to deliver world class temperature management solutions to our customers right the first time.


Our Vision is to create innovative temperature management solutions to improve life.

Quality Policy

At CSZ, our Commitment is to provide Customers with high quality, Cost-effective products that are in Compliance with standards and regulatory requirements in an atmosphere that fosters continuous improvement and customer satisfaction.