Diploma plc
Diploma plc is number 2202 in the 311 Titans Index of the world's largest companies, with reported revenue of about $2.0bn in 2025. It is headquartered in London, United Kingdom. In short: electronics & services business.
Part of the 311 Titans Index (311institute.com). Last updated .
Other Titans in United Kingdom
- Shell (#19)
- BP (#29)
- Tesco plc (#66)
- Astrazeneca plc (#134)
- RIO Tinto plc (#135)
- Unilever plc (#137)
- Vodafone Group Public Ltd Co (#164)
- J Sainsbury plc (#173)
- GSK plc (#187)
- Imperial Brands plc (#193)
- International Consolidated Airlines Group, S.A. (#214)
- International Airlines Group (#228)
- Linde Group (#236)
- British American Tobacco p.l.c. (#238)
- BAE Systems (#268)
- Rolls-Royce Holdings plc (#289)
- Diageo (#291)
- BT Group plc (#305)
- Associated British Foods plc (#314)
- Marks And Spencer Group P.L.C. (#355)
- Coca-Cola Europacific Partners (#371)
- Reckitt Benckiser Group plc (#422)
- Anglo American plc (#427)
- CNH Industrial (#435)
- WPP plc (#443)
- Kingfisher plc (#466)
- Johnson Matthey plc (#474)
- Jd Sports Fashion plc (#475)
- Bunzl Public Limited Company (#504)
- Amcor (#523)
Related
- Innovation profile of London
- United Kingdom: economy and key statistics
- The 311 Titans Index
- All 311 Indexes
Questions and answers
How big is Diploma plc?
Diploma plc reported revenue of about $2.0bn in 2025, ranking number 2202 in the 311 Titans Index.
Where is Diploma plc headquartered?
Diploma plc is headquartered in London, United Kingdom.
Source: official filing (filing), retrieved 5 October 2026. Revenue converted to US dollars at the ECB average rate for the financial year.
© 311 Institute 2026. Facts from official filings, Wikidata (CC0) and the sources linked on this page. The selection, classification and links are the proprietary work of the 311 Institute, protected by copyright and database rights.