Chloride Group

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Chloride Group PLC
Wholly owned subsidiary
Industry Power systems
Founded 1891
Headquarters London, UK
Key people
Norman Broadhurst, Chairman
Tim Cobbold, CEO
Owner Emerson Electric Company

Chloride Group, a business of Emerson Network Power, is the UK's largest supplier of secure power systems to hospitals and other public buildings and facilities. Formerly listed on the London Stock Exchange and a constituent of FTSE 250 index, the company has been owned by Emerson Electric since September 2010.


Chloride Group was founded in 1891 as The Chloride Electrical Syndicate Limited to manufacture batteries.[1] Brand names used included Ajax, Exide, Dagenite, Kathanode, Shednought and Tudor.[1]

In the 1970s, under its then managing director Sir Michael Edwardes it showcased the UK's first battery power buses.[2]

In 1999 it diversified into secure power systems acquiring Oneac in the US, BOAR SA in Spain and Hytek in Australia. In 2000 it acquired the power protection division of Siemens in Germany and in 2001 it acquired Continuous Power International followed, in 2005, by Harath Engineering Services in the UK. In 2007 it acquired AST Electronique Services, a similar business in France.[3]

In July 2009 the Company announced the acquisition of a 90% stake in India’s leading Uninterruptible power supply company, DB Power Electronics.[4]

In September 2010 Chloride Group was fully acquired by Emerson Electric (joining the Emerson Network Power platform[5]) of the United States for US$1.5 billion.[6]


Chloride Group focuses on one type of business - secure power systems - so its business is organised on a geographical basis.


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