
Invensys is a global technology company with three business segments: Software, Industrial Automation and Energy Controls. Invensys came into being as a result of the merger between BTR and Siebe on 4 February 1999. The name “Invensys” was voted for as the new name of the merged businesses by shareholders on 16 April 1999.

Milestone Dates
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1819
Augustus Siebe (1788-1872) moves to London and sets up an engineering practice. He is joined by his son, Gorman. -
1908 - The Foxboro Company established
The family-owned company manufactured machinery and machine tools, and developed a worldwide reputation for industrial controls. -
1966 - Eurotherm established
Originally Eurotherm produced electronic temperature controllers, but grew into new business areas that enabled it to offer customers world-class solutions in control, data management and process automation -
1967 - SimSci established
Primarily focused on plant-level simulations, SimSci helped to optimize processes for the refining and petrochemical industries. -
1983 - Esscor established
Primarily focused on providing training simulators for operators, Esscor enabled the power industry to optimize performance and increase productivity. -
1983 - Triconex established
Triconex is now the world's leading supplier of safety and critical control systems to industries around the world. -
1983 - Avantis established
Avantis combined extraordinary software products and value-added services to deliver Enterprise Asset Management (EAM) solutions, which are now used by more than 700 customers throughout the world -
1987 - Wonderware established
Wonderware pioneered the use of Microsoft Windows operating system in HMI automation software for manufacturing. -
1990's - Siebe acquisitions
Siebe acquires Triconex, Eurotherm, Wonderware, SimSci, Avantis and Esscor -
1999 - Siebe becomes Invensys
Siebe merges with BTR to create Invensys -
2001 - Invensys Rail Systems created
Individual rail-related business units are organized into a specialized business group that became a world leader in the design, manufacture, supply, installation, commission, maintenance and management of safety-related rail signalling and control systems. -
2004 - Invensys becomes Invensys Controls
Appliance Controls and Climate Controls merge to form Invensys Controls. -
2009 - Invensys Operations Management is created
IPS, Wonderware, Eurotherm and IMServ are integrated to form a single division. The decision was driven by the convergence of technologies that enable customers to optimise their entire operations, the opportunity to create a continuum of solutions and services for the whole industrial market and the potential for cost savings. -
2009 - Invensys unveils its new brand
With three core divisions - Invensys Operations Management, Invensys Rail and Invensys Controls - Invensys unveils a new brand as a sign that its turnaround is complete and it is now moving forward. -
2013 - Completion of the disposal of Invensys Rail
Invensys plc confirms the sale of Invensys Rail to Siemens. -
January 2014 - Schneider Electric acquires Invensys
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