Heat Treating Services Unlimited Inc. (HTSU), a global field services and accredited testing and calibration laboratory specializing in the thermal-processing industry, acquired dibalog USA Inc., an energy-optimization company. The investment in dibalog USA strengthens HTSU’s portfolio of maintenance, calibration, repair and testing services in North America. Dibalog will operate as a new division of HTSU known as Dyno Controls. HTSU had been a sales/service partner to dibalog GmbH of Heidelberg, Germany, since 2008. Dyno Controls’ energy products and software tools calculate and maintain uniform energy loads and monitor performance.