Terso Solutions.

Terso Solutions is a Madison, Wisconsin maker of RAIN UHF RFID inventory systems for healthcare and life sciences, including RFID-enabled cabinets, refrigerators and freezers with cloud software. It has deployed over 3,800 devices and supports more than 1,000 U.S. healthcare facilities, including the Department of Veterans Affairs. A former Promega subsidiary, it was acquired by PAR Excellence in September 2026.^[1]