History
More than 170 years of experience1836 American Meter Company (AMCO) founded in New York
1848 Elster Meters founded in Berlin
1865 G. Kromschroeder AG established in Osnabrueck
1885 Kent Water Meters founded in London
1894 Westinghouse Electric Company founded in Pittsburgh, Pennsylvania
1953 Westinghouse Electricity Metering Division moved to Raleigh, North Carolina
1985 Elster Gas Metering acquired by Ruhrgas
1988 AMCO acquired by Ruhrgas
1990 Westinghouse Electricity Metering Division acquired by ABB
1997 GEC Metering acquired by ABB
2001 Instromet acquired by Ruhrgas
2002 ABB Electric and Water Metering acquired by Ruhrgas to create Ruhrgas Industries, a world leader in metering technology
2003 Ruhrgas acquired by E.On
2005 Ruhrgas Industries acquired by funds advised by CVC Capital Partners
2005 Formation of Elster Group
2007 Elster Group acquires Coronis Systems

