EUROREGISTRY
GB · Person with significant control
Calvin James Herbert Hartwell
Calvin James Herbert Hartwell is recorded on the Companies House register of people with significant control for 10 UK companies.
Register details
Facts
- Name on the register
- Mr Calvin James Herbert Hartwell
- Type
- Individual
- Nationality
- British
- Country of residence
- England
- Year of birth
- 1990
- Significant control now
- 10 UK companies
- First notified
- 1 January 2023
- Source
- Companies House register of people with significant control, 20 September 2026
At a glance
Calvin James Herbert Hartwell's companies
- Calvin James Herbert Hartwell owns 75% or more of the shares in all 10 companies listed below.
- Main lines of business: business and domestic software development (9), other software publishing (5) and information technology consultancy activities (1).
- Registered offices in Chelmsford (10).
- The companies were incorporated between 2023 and 2024.
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 Calvin James Herbert Hartwell as a person with significant control, with the nature of that control as registered.
| Company | Status | Incorporated | Town | Business | Nature of control | Since |
|---|---|---|---|---|---|---|
| COMPOSE CODE LIMITED 15382481 · Private Limited Company | Active | 2 January 2024 | Chelmsford | Other software publishing; Business and domestic software development | 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 January 2024 |
| HARTWELL INDUSTRIES LIMITED 15379811 · Private Limited Company | Active | 2 January 2024 | Chelmsford | Business and domestic software development | 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 January 2024 |
| POTENTATE.IO LIMITED 15382488 · Private Limited Company | Active | 2 January 2024 | Chelmsford | Business and domestic software development | 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 January 2024 |
| CODE VIRTUE LIMITED 15379801 · Private Limited Company | Active | 1 January 2024 | Chelmsford | Other software publishing; Business and domestic software development | 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 | 1 January 2024 |
| HARTWELL DESIGN LIMITED 15379806 · Private Limited Company | Active | 1 January 2024 | Chelmsford | Business and domestic software development | 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 | 1 January 2024 |
| HARTWELL SOFTWARE LIMITED 15379788 · Private Limited Company | Active | 1 January 2024 | Chelmsford | Other software publishing; Business and domestic software development | 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 | 1 January 2024 |
| HARTWELL TECH LIMITED 15379757 · Private Limited Company | Active | 1 January 2024 | Chelmsford | Business and domestic software development | 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 | 1 January 2024 |
| HARTWELL.IO LIMITED 15379777 · Private Limited Company | Active | 1 January 2024 | Chelmsford | Business and domestic software development | 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 | 1 January 2024 |
| SHADYTRADE LIMITED 15379796 · Private Limited Company | Active | 1 January 2024 | Chelmsford | Other software publishing | 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 | 1 January 2024 |
| BOXEDBINARY LIMITED 14564863 · Private Limited Company | Active | 1 January 2023 | Chelmsford | Publishing of computer games; Other software publishing; Business and domestic software development; Information technology consultancy 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 | 1 January 2023 |
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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