Marconi Electronic Systems

Marconi Electronic Systems Limited
Founded20 July 1897 (as Marconi Company)
Defunct30 November 1999
FateMerged with British Aerospace
SuccessorBAE Systems
HeadquartersChelmsford, England
Key people
Guglielmo Marconi
Arnold Weinstock
ParentGeneral 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 split off 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).