TPI Corporation is an American manufacturing company with over a 650,000 square foot facility, located in Johnson City, Tennessee. We have been manufacturing ventilation, electric heating, temperature control, and task lighting equipment for over 70-years. Our products follow all OSHA standards and provide the necessary NRTL (National Recognized Testing Laboratories) requirements for independent safety and quality certifications, such as ETL and UL Listings for both U.S. and Canada.