# Dionach (Dionach Ltd)

Private limited company registered in Oxford, classed under “Other information technology service activities”.

- Company number: 03908168
- Status: Active
- Type: Private limited company
- Incorporated: 17 January 2000
- Registered office: Unipart House, Garsington Road, Oxford, OX4 2PG
- Location: Oxford, South East
- Activity: Other information technology service activities
- Website: dionach.com

## Latest filed profit

Profit after tax in the year to 31 December 2025: **£570k**, from its latest filed accounts.

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

## Questions people ask

### What does Dionach do?

Private limited company registered in Oxford, classed under “Other information technology service activities”. In its own words: “Dionach is your trusted cybersecurity partner—offering compliance, pen testing, risk management, and vulnerability assessments.”

### How much turnover does Dionach make?

Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/dionach-03908168

### Is Dionach profitable?

Yes: it made a profit after tax of £570k in the year to 31 December 2025, its latest filed accounts.

### How many people work at Dionach?

Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/dionach-03908168

### Who runs and owns Dionach?

Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/dionach-03908168

### Where is Dionach based?

Its registered office is Unipart House, Garsington Road, Oxford, OX4 2PG, in Oxford, South East.

### When was Dionach founded?

Dionach Ltd was incorporated on 17 January 2000.

### Is Dionach still trading?

The register lists Dionach Ltd as active.

## Timeline

Recent filings and changes at Companies House.

- 2026-07-29: Full accounts made up to 31 December 2025
- 2025-09-11: Accounts for a small company made up to 31 December 2024
- 2025-08-22: Confirmation statement made on 12 August 2025 with no updates ANNOTATION Replaced a second filed CS01 (Statement of Capital and Shareholder Information) was replaced on 10/08/2026
- 2025-08-21: Director's details changed for Mr Ewan Alistair Mckenzie on 11 August 2025
- 2024-10-31: Cessation of Ewan Alistair Mckenzie as a person with significant control on 22 October 2024
- 2024-10-31: Cessation of Gareth Paul Phillips as a person with significant control on 22 October 2024
- 2024-10-31: Notification of Sébastien Daniel Kher as a person with significant control on 22 October 2024
- 2024-10-31: Termination of appointment of James Frank Thomas as a director on 22 October 2024
- 2024-10-31: Appointment of Mr Sébastien Daniel Kher as a director on 22 October 2024
- 2024-10-31: Termination of appointment of Lisa Michelle Bragg as a director on 22 October 2024
- 2024-10-31: Termination of appointment of William John Bragg as a director on 22 October 2024
- 2024-10-31: Termination of appointment of Raymond Rizk as a director on 22 October 2024
- 2024-10-31: Termination of appointment of Gareth Paul Phillips as a director on 22 October 2024
- 2024-09-25: Cessation of William John Bragg as a person with significant control on 23 March 2023
- 2024-08-21: Satisfaction of charge 039081680004 in full
- 2024-08-14: Unaudited abridged accounts made up to 31 December 2023
- 2023-09-27: Unaudited abridged accounts made up to 31 December 2022

---

Source: Companies House filings (Open Government Licence v3.0). Figures are as filed; nothing is estimated. Page: https://firmfacts.co/company/dionach-03908168