Private company

Marconi Instruments Limited

Logo: ™/®Telefonaktiebolaget LM Ericsson, Public domain, via Wikimedia Commons3

Marconi Instruments Limited (MI) was a British company, one of the Marconi group of companies, formerly part of GEC. Originally formed in 1936, there was a buyout of Marconi-Ekco Instruments to form the company Marconi Instruments in 1941. The company was based in St Albans, Colchester, and Stevenage (where it eventually consolidated), all in southern England.2 It is part of The Marconi Wireless Telegraph & Signal Company.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1941Founded1
  • Industryelectronics engineering, engineering1
  • HeadquartersSt Albans1

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Marconi Instruments Limited (MI) was a British company, one of the Marconi group of companies, formerly part of GEC. Originally formed in 1936, there was a buyout of Marconi-Ekco Instruments to form the company Marconi Instruments in 1941.2

Corporate structure

Marconi Instruments Limited is part of a group headed by English Electric. 11 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Products and brands

  • electronic device
  • electronics

Listed on Wikidata.1

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. 1941Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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