Plessey

British electronics, defence and telecommunications company

Companybusiness enterpriseQ7204713

Also known as The Plessey Company PLC

Founded: 1917
Headquarters: Ilford
Country: United Kingdom
Industry: electronics
Website: plesseysemiconductors.com

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

The Plessey Company plc was a British electronics, defence and telecommunications company. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index until it was acquired by GEC and Siemens in 1989.

Overview

Subsidiaries

1 linked to Plessey in Wikidata

PPlessey ValdarnoTuscan subsidiary of Plessey

Products

2 linked to Plessey in Wikidata

All data

14 statements · 7% with external sources · numbers in brackets are citations

Followed by: GEC Plessey Telecommunications
Dissolved: 1989
Legal form: public limited company

On other databases

4 identifiers linking Plessey across the web's reference databases

Data quality

statements

externally sourced

Source last edited June 6, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Plessey (Q7204713). Retrieved from https://aidb.si/e/plessey-Q7204713