−£12.68m
vs Dec 2024Active05268380Private limited companyCardiff
ECO2 LIMITED
Significant control: Peter Darwell (50–75%), Ronald John Kirk (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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What does Eco2 Limited sell?
Registered activity: Production of electricity (SIC 35110). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
ECO2 LIMITED is an active private limited company (company number 05268380) incorporated on 25 October 2004, registered in Cardiff. Its registered activity is production of electricity (SIC 35110). Latest small accounts cover the period ending 31 December 2025, showing net assets of −£12.68m and cash of £29k, with 3 employees on average. Net assets were unchanged on the prior period.
Peer position · net assets
By net assets it sits in the bottom quarter of 125 comparable companies in Cardiff (median £1, upper quartile £100).
02
Ownership and control
- Mr Peter Darwell
- owns 50–75% of shares
- holds 50–75% of voting rights
- can appoint or remove directors
- Mr Ronald John Kirk
- owns 25–50% of shares
- holds 25–50% of voting rights
- Dr David James Williams
- owns 25–50% of shares
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 25 October 200421 yrs ago
- Next accounts due
- 30 September 2027in 341 days
- Confirmation statement due
- 8 November 2026in 15 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 35110
- Production of electricity
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£29k
−32%vs Dec 2024Not reported
3
No changevs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | −£12.68m | £29k | £23k | — | — | — | 3 |
| 31 December 2024 | −£12.66m | £42k | £33k | — | — | — | 3 |
Cash per employee£9,538Cash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets below zeroNet assets £-12,677,574 at 31 December 2025
- Incorporated five or more years agoIncorporated 25 October 2004
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Next accounts duein 341 days
- Confirmation statement duein 15 days
- Accounts period endNet liabilities £12.68m · small accounts
- Accounts period endNet liabilities £12.66m · small accounts
- Incorporated
08
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- PENNANT WALTERS (PANT Y WAL) LIMITEDHirwaun Industrial Estate · inc. Feb 2005
- SEVERN POWER LIMITEDNewport · inc. Mar 2005
- AFON WYSG ENERGY LIMITEDNash · inc. Apr 2004
- PENNANT WALTERS (MAESGWYN) LIMITEDEstate Hirwaun Aberdare · inc. Nov 2005
- PENNANT WALTERS (HIRWAUN) LIMITEDEstate Hirwaun Aberdare · inc. May 2006
- TIDAL ENERGY LIMITEDCardiff · inc. Jan 2001
All companies incorporated on 25 October 2004 · in Oct 2004.
09
Reminders for ECO2 LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.