Diploma plc is a British business supplying specialised technical products and services based in London, England. It is a constituent of the FTSE 100 Index.
History
The company was founded in 1931. It was first listed on the London Stock Exchange in 1960, and was a market leader in electronic component distribution, building products and special steels until the late 1980s.[2]
The electronic component distribution business (SEI Macro) was sold in 1999,[3] the building products business (Robert Lee) was sold in 2000,[4] and the special steels business (Henry Whitham) was sold in 2001.[5]
The company acquired RT Dygert International, a US-based distributor of seals, in December 2008,[6] and Kubo Tech, a Swiss-based seals distributor, in March 2015.[7]
It was announced in August 2018, that CEO Richard Ingram would be stepping down after four months in charge, with John Nicholas acting as executive chairman in interim charge.[8] In January 2020, investors expressed concern about the bonus package offered to the new CEO, Johnny Thomson.[9]
The company acquired Simonsen & Weel, a Danish medical equipment supplier, in January 2021,[10] Tennessee Industrial Electronics, a Nashville-based parts distributor, for £76 million in March 2023,[11] and Distribuidora Internacional Carmen, a Spanish-based distributor of fluid power products, for £170 million in July 2023.[12]
Operations
Diploma is a distributor, operating in the three sectors of Controls (including specialised wiring), Seals (including seals and gaskets) and Life Sciences (including consumables and instrumentation).[13]
The company has operations in North America, Europe, Australia, New Zealand, New Caledonia, and China.[14]
External links
References
- Annual Report 2025 Diploma, retrieved 27 January 2026^
- Diploma plc sees expansion in CAD/CAM, memory chip markets CBR online, 17 May 1989^
- SEI Macro sold to Avnet in £37.5m deal Electronics Weekly, 3 September 1999^
- About Robert Lee Distribution rlee.co.uk, retrieved 28 March 2015^
- Diploma sells Henry Whitham for 11.1 mln stg AFX UK Focus, 20 March 2001^
- RT Dygert International was acquired by Diploma on 23 December 2008 Mergr, retrieved 7 September 2023^
- Diploma PLC übernimmt Kubo Gruppe Schweizer Maschinenmarkt, 16 March 2015, retrieved 7 September 2023^
- Diploma CEO steps down after four months in charge U.S., Reuters, retrieved 2018-10-24^
- Investors revolt over bonus award for Diploma chief Johnny Thomson The Times, 17 January 2020, retrieved 7 September 2023^
- Nye britiske ejere trækker millionbeløb ud af Simonsen & Weel Med Watch, 7 March 2022, retrieved 7 September 2023^
- Diploma makes GBP76 million acquisition, announces capital raise Morning Star, 16 March 2023, retrieved 7 September 2023^
- Diploma Acquires Distribuidora Internacional Carmen For Initial 170 Mln Pounds RTT News, 13 July 2023, retrieved 7 September 2023^
- About us Diploma plc, retrieved 14 June 2022^
- Cameron M. Miller. Diploma Plc - Enough To Seal The Deal? Seeking Alpha, 2018-04-09, retrieved 2019-04-23^