Invensys Building Automation System Invensys, with its extensive market knowledge and research facilities, offers total building management solutions for commercial and industrial property of all sizes. All these systems have built-in backward compatibility to ensure that new advances in technology can be applied to existing systems without the need for expensive refits. This increases the life-time of the system and guarantees that our clients have the most up-to-date technology.   Invensys Control Valve A complete product range of mechanical equipment control valve and actuator.