# Diploma (Diploma PLC)

Public limited company registered in London, classed under “Activities of head offices”.

- Company number: 03899848
- Status: Active
- Type: Public limited company
- Incorporated: 24 December 1999
- Registered office: 10-11 Charterhouse Square, London, EC1M 6EE
- Location: London
- Activity: Activities of head offices
- Website: diplomaplc.com

## Latest filed profit

Profit after tax in the year to 30 September 2025: **£186m**, from its latest filed accounts.

Turnover, net assets, cash, staff, earlier years, ratios and owners are on the page for subscribers.

## Questions people ask

### What does Diploma do?

Public limited company registered in London, classed under “Activities of head offices”. In its own words: “Diploma PLC is a value-add solutions group, providing critical products and services for a wide range of uses to customers across many different markets.”

### How much turnover does Diploma make?

Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/diploma-03899848

### Is Diploma profitable?

Yes: it made a profit after tax of £186m in the year to 30 September 2025, its latest filed accounts.

### Who runs and owns Diploma?

Its directors are Anna Lawrence, Katie Bickerstaffe, Ian Ramsey Safwat El-Mokadem, Dean Kendal Finch, Amanda Jane Gradden and 6 more. Its owners are shown to subscribers.

### Where is Diploma based?

Its registered office is 10-11 Charterhouse Square, London, EC1M 6EE, in London.

### When was Diploma founded?

Diploma PLC was incorporated on 24 December 1999.

### Is Diploma still trading?

The register lists Diploma PLC as active.

## Timeline

Recent filings and changes at Companies House.

- 2026-07-15: Termination of appointment of Geraldine Claire Huse as a director on 15 July 2026
- 2026-06-18: Appointment of Ms Amanda Jane Gradden as a director on 1 June 2026
- 2026-03-05: Appointment of Mrs Cheri Marie Phyfer as a director on 2 March 2026
- 2026-02-04: Resolutions (and 14 more like it since 24 January 2013)
- 2026-01-29: Group of companies' accounts made up to 30 September 2025
- 2025-12-29: Director's details changed for Janice Stipp on 29 December 2025
- 2025-12-01: Statement of capital following an allotment of shares on 17 November 2025 · GBP 6,715,869.9 (and 5 more like it since 30 September 2020)
- 2025-08-14: Appointment of Mr Wilson Ng as a director on 14 August 2025
- 2025-08-14: Termination of appointment of Christopher Mark Davies as a director on 13 August 2025
- 2025-05-30: Appointment of Anna Lawrence as a secretary on 30 May 2025
- 2025-05-30: Termination of appointment of John Morrison as a secretary on 30 May 2025
- 2025-01-23: Group of companies' accounts made up to 30 September 2024
- 2025-01-15: Appointment of Mr Ian Ramsey Safwat El-Mokadem as a director on 15 January 2025
- 2024-12-03: Director's details changed for Mrs Geraldine Claire Huse on 22 November 2024
- 2024-10-02: Appointment of Mrs Katie Bickerstaffe as a director on 1 October 2024
- 2024-10-02: Termination of appointment of Anne Thorburn as a director on 30 September 2024
- 2024-07-16: Termination of appointment of Andrew Patrick Smith as a director on 16 July 2024
- 2024-04-10: Director's details changed for Mr Jonathan David Thomson on 26 March 2024
- 2024-02-16: Group of companies' accounts made up to 30 September 2023
- 2024-01-17: Appointment of Janice Stipp as a director on 17 January 2024
- 2023-06-01: Appointment of Ms Jennifer Suzanne Ward as a director on 1 June 2023
- 2023-03-07: Director's details changed for Mrs Geraldine Claire Huse on 1 March 2020
- 2023-02-01: Group of companies' accounts made up to 30 September 2022
- 2022-11-01: Appointment of Mr Christopher Mark Davies as a director on 1 November 2022
- 2022-10-11: Termination of appointment of Barbara Gibbes as a director on 30 September 2022

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Source: Companies House filings (Open Government Licence v3.0). Figures are as filed; nothing is estimated. Page: https://firmfacts.co/company/diploma-03899848