Marconi Electronic Systems

Marconi Electronic Systems Limited

Founded	20 July 1897 (as Marconi Company)
Defunct	30 November 1999
Fate	Merged with British Aerospace
Successor	BAE Systems
Headquarters	Chelmsford, England
Key people	Guglielmo Marconi Arnold Weinstock
Parent	General Electric Company

Marconi Electronic Systems (MES), or GEC-Marconi as it was until 1998, was the defence arm of General Electric Company (GEC). It was demerged from GEC and bought by British Aerospace (BAe) on 30 November 1999 to form BAE Systems. GEC then renamed itself Marconi plc.

MES exists today as BAE Systems Electronics Limited, a subsidiary of BAE Systems, but the assets were rearranged elsewhere within that company. MES-related businesses include BAE Systems Submarine Solutions, BAE Systems Surface Ships, BAE Systems Insyte and Selex ES (now a part of Leonardo).