EUROREGISTRY
GB · Person with significant control
William Thomas Riddick Williamson
William Thomas Riddick Williamson is recorded on the Companies House register of people with significant control for 7 UK companies.
Register details
Facts
- Name on the register
- Mr William Thomas Riddick Williamson
- Type
- Individual
- Nationality
- British
- Country of residence
- United Kingdom
- Year of birth
- 1983
- Significant control now
- 7 UK companies
- First notified
- 6 April 2016
- Source
- Companies House register of people with significant control, 20 September 2026
At a glance
William Thomas Riddick Williamson's companies
- William Thomas Riddick Williamson owns 75% or more of the shares in 3 of the 7 companies listed below.
- Main lines of business: accounting and auditing activities (3), management consultancy activities other than financial management (2) and environmental consulting activities (1).
- Registered offices in Hamilton (6) and London (1).
- The companies were incorporated between 2000 and 2025.
- One of the companies also lists other people or companies with significant control.
These details come from the register as published on 20 September 2026. The register can change at any time: check the current entry live before relying on it.
Companies
Significant control now
UK companies that list William Thomas Riddick Williamson as a person with significant control, with the nature of that control as registered.
| Company | Status | Incorporated | Town | Business | Nature of control | Since |
|---|---|---|---|---|---|---|
| WTRW ALTAIR LIMITED SC865553 · Private Limited Company | Active | 7 October 2025 | Hamilton | Management consultancy activities other than financial management | Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors | 7 October 2025 |
| ALTAIR EXECUTIVE ADVISORS LIMITED 16558505 · Private Limited Company | Active | 3 July 2025 | London | Management consultancy activities other than financial management | Owns more than 25% but not more than 50% of the shares; Holds more than 25% but not more than 50% of the voting rights; Can appoint or remove a majority of the board of directors | 3 July 2025 |
| CE HAMILTON LTD SC854395 · Private Limited Company | Active | 2 July 2025 | Hamilton | Environmental consulting activities | Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors | 2 July 2025 |
| WILLIAM DUNCAN (UK) LIMITED SC475044 · Private Limited Company | Active | 11 April 2014 | Hamilton | Accounting and auditing activities | Owns 75% or more of the shares | 31 December 2020 |
| TAX ENSURE LIMITED SC205618 · Private Limited Company | Active | 29 March 2000 | Hamilton | Other professional, scientific and technical activities n.e.c. | Has significant influence or control | 1 July 2016 |
| TAX ESURE LIMITED SC340205 · Private Limited Company | Active | 26 March 2008 | Hamilton | Accounting and auditing activities | Has significant influence or control | 1 July 2016 |
| WTW WILLIAMSON LIMITED SC481074 · Private Limited Company | Active | 30 June 2014 | Hamilton | Accounting and auditing activities | Owns more than 25% but not more than 50% of the shares | 6 April 2016 |
Connections
Others with significant control of these companies
- Sara WilliamsonWTW WILLIAMSON LIMITED
Explained
What significant control means
Every UK company must keep a register of the people with significant control over it and file it with Companies House. Someone has significant control if they own more than 25% of the shares or voting rights, can appoint or remove a majority of the board, or otherwise have significant influence or control. Companies can also be controlled through another company, which then appears on the register itself.
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