Invensys plc is a global engineering and information technology company headquartered in London, United Kingdom. Its Invensys Operations Management division is a global industrial automation supplier and trades under brands including Eurotherm, Foxboro and Wonderware. Its Invensys Controls division is a global supplier of control devices and trades under brands including Drayton, Eberle, Eliwell and Invensys Appliance. Its Invensys Rail division is a major supplier of railway control equipment and software and trades under brands including Dimetronic, Safetran and Westinghouse. The company has offices in more than 50 countries and its products are sold in around 180 countries.
It is quoted on the London Stock Exchange and is a constituent of the FTSE 100 Index.
The company was formed by the merger of Siebe plc and BTR plc in 1999. From 1999 to 2004, Invensys underwent a major restructuring programme to cut its costs as falling sales and large debts had led to the danger of the company going bankrupt. A major disposal programme, combined with a £2.7bn debt restructuring in 2004 saved the company from collapse. During that time Invensys bought and sold The Baan Corporation, and its number of employees was reduced from around 120,000 to fewer than 20,000.