Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 17 January 2027
- Last conf. stmt
- 3 January 2026
Envirodyne Holdings Limited
- Incorporated
- 4 December 1985 (40 years)
- Previously known as
- Sonardyne Holdings Limited (until 4 July 2026)Sonardyne Group Limited (until 2 March 2020)Altonquart Limited (until 1 January 1986)
- Industry
- Manufacture of electronic measuring, testing etc. equipment, not for industrial process control (26511)
- Owned by
- Nicola Jane EvansSimon Charles PartridgeBetsan Felicity Partridge
- Accounts type
- Group
- Region
- Greater London
- Address
- 71 Queen Victoria StreetLondonEC4V 4BE
Officers 4 active
Officer details are public data from the Companies House register.
Director · Appointed 15 November 2021
Also at Kraken Robotics UK Limited · more companies
British
Born November 1970
British
Born April 1967 (59)
British
British
Born September 1939 (87)
Officer history (3 former)
31 December 2022
15 November 2021
2 March 2021
4 May 2014
31 March 2014
17 December 2009
20 March 2008
Ownership 4 active
People and entities with significant control, from the Companies House PSC register
Individual · Notified 13 November 2024
Owns 25–50% of shares
Holds 75–100% of voting rights
British
Born April 1967 (59)
Individual · Notified 13 November 2024
Owns 25–50% of shares
Holds 50–75% of voting rights
British
Born November 1970
British
Born September 1939 (87)
British
Born December 1941 (84)
Holdings 2
Companies where Envirodyne Holdings Limited is registered as a person with significant control
Owns 75–100% of shares
Dissolved
Owns 75–100% of shares
Status not confirmed
Financials
Figures from 2023 accounts. Newer accounts, made up to 31 December 2025, are filed but not read yet. See them on Companies House
- Cash
- £8,253,576
- Profit
- £394,581
- Employees
- 3
- Current Ratio
- 28.5x
- Return on Equity
- 1%
Balance sheet detail
| 2023 | |
|---|---|
| Current Assets | £15,180,026 |
| Debtors | £6,926,450 |
| Cash | £8,253,576 |
| Creditors (< 1 year) | £531,877 |
| Net Current Assets | £14,648,149 |
| Shareholder Funds | £43,564,690 |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 12 July 2026 | Group of companies' accounts | 31 December 2025 | ||
| 4 July 2026 | Certificate of change of name | |||
| 3 July 2026 | Registered office address changed | |||
| 5 January 2026 | Confirmation statement with no updates | 3 January 2026 | ||
| 24 October 2025 | Director's details changed |
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