−£397k
vs Nov 2024Active07087594Private limited companyLondon
ARK SUSTAINABILITY LTD
Significant control: Helix International Group Limited (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Ark Sustainability Ltd sell?
Registered activity: Environmental consulting activities (SIC 74901). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
ARK SUSTAINABILITY LTD is an active private limited company (company number 07087594) incorporated on 26 November 2009, registered in London. Its registered activity is environmental consulting activities (SIC 74901). Latest small accounts cover the period ending 30 November 2025, showing net assets of −£397k and cash of £2,988, with 1 employee on average. Net assets fell 13% on the prior period (−£351k).
Peer position · net assets
By net assets it sits in the bottom quarter of 713 comparable companies in London (median £2,098, upper quartile £37k).
02
Ownership and control
- Helix International Group Limited
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
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
- 26 November 200916 yrs ago
- Next accounts due
- 30 August 2027in 308 days
- Confirmation statement due
- 10 December 2026in 45 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 74901
- Environmental consulting activities
- Accounts type
- Small
- Size band
- MicroCompanies Act thresholds
05
Financials
£2,988
−46%vs Nov 2024Not reported
1
−50%vs Nov 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 November 2025 | −£397k | £2,988 | £385k | — | — | — | 1 |
| 30 November 2024 | −£351k | £5,583 | £249k | — | — | — | 2 |
Cash per employee£2,988Cash ÷ 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 £-396,521 at 30 November 2025
- Incorporated five or more years agoIncorporated 26 November 2009
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 308 days
- Confirmation statement duein 45 days
- Accounts period endNet liabilities £397k · small accounts
- Accounts period endNet liabilities £351k · small accounts
- Incorporated
08
Similar companies in London
- LOCAL ENERGY LIMITEDLondon · inc. Dec 2009
- EARTH TO OCEAN LIMITEDLondon · inc. Dec 2009
- NACI LIMITEDLondon · inc. Dec 2009
- DECARBON LIMITEDLondon · inc. Jan 2010
- DIGITALIS REPUTATION LIMITEDLondon · inc. Sept 2009
- CHRISTCHURCH ENERGY CONSULTANTS LIMITEDChristchurch Road · inc. Feb 2010
All companies incorporated on 26 November 2009 · in Nov 2009.
09
Reminders for ARK SUSTAINABILITY LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.