WindowMaster International A/S engages in the development, production, marketing, and sale of natural and mixed mode ventilation, smoke and heat ventilation, and automatic window control solutions for the commercial construction industry worldwide. It offers actuators and accessories, including spindle, chain, locking, louvre, door, and window actuators, as well as brackets and cables; controllers used for power supply and control of window actuators for natural, mixed mode, and smoke ventilation; sensors and detectors; and accessories, such as break glass units, keypads, and miscellaneous products, as well as spare parts. The company also provides service and maintenance of systems and software; testing of product functionality; remote, fault localization, back-up, and restoration services; on-going monitoring, adjustments, event logging, and reports; and indoor climate support services with proposals for optimization. In addition, it offers other service options comprising training for technical staff and facility management; training in WindowMaster software and natural ventilation; system upgrades with new system functions; and interface to other building systems. The company was incorporated in 1989 and is headquartered in Vedbæk, Denmark.