Espec Corp. manufactures and sells environmental test, energy device, and semiconductor-related equipment worldwide. It operates through three segments: Equipment Business, Service Business, and Other Business. Its products include temperature and humidity chambers, thermal cycle and thermal shock chambers, secondary battery-related equipment, measurement and evaluation systems, semiconductor-related equipment, HALT and HASS systems, and indoor farm and growth chambers. The company also offers laboratory testing, consulting, and calibration services, as well as rental and resale of environmental test equipment. Founded in 1947, it is headquartered in Osaka, Japan.