−£28k
vs Jan 2025Active11760455Private limited companyLondon
MARE CLAUSUM LTD
Significant control: Claes Michel Simonsen Zangenberg (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Mare Clausum Ltd sell?
Registered activity: Other publishing activities (SIC 58190). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
MARE CLAUSUM LTD is an active private limited company (company number 11760455) incorporated on 10 January 2019, registered in London. Its registered activity is other publishing activities (SIC 58190). Latest micro accounts cover the period ending 31 January 2026, showing net assets of −£28k, with 1 employee on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 101% on the prior period (−£14k).
Peer position · net assets
By net assets it sits in the bottom quarter of 2,566 comparable companies in London (median £333, upper quartile £17k).
02
Ownership and control
- Claes Michel Simonsen Zangenberg
- 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
- 10 January 20197 yrs ago
- Next accounts due
- 31 October 2027in 372 days
- Confirmation statement due
- 24 January 2027in 92 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 58190
- Other publishing activities
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
1
No changevs Jan 2025| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 January 2026 | −£28k | — | — | £29k | — | — | 1 |
| 31 January 2025 | −£14k | — | — | £15k | — | — | 1 |
Current ratio0.03Current assets ÷ creditors within one year
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
06
Filing and accounts signals
- Net assets below zeroNet assets £-27,647 at 31 January 2026
- Net assets down 25% or more on the prior period-100.8% vs prior period
- Current assets below creditors within one yearCurrent ratio 0.03
- Incorporated five or more years agoIncorporated 10 January 2019
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 372 days
- Confirmation statement duein 92 days
- Accounts period endNet liabilities £28k · micro accounts
- Accounts period endNet liabilities £14k · micro accounts
- Incorporated
08
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- HEATH MEDIA GROUP LIMITEDLondon · inc. Jan 2019
- BASENODE LIMITEDLondon · inc. Jan 2019
- RACHEL WILLIAMS PUBLISHING SERVICES LTDLondon · inc. Jan 2019
- EVELYN ALDOUS LTDLondon · inc. Jan 2019
- ANDROMEDA PUBLISHING AND ACADEMIC SERVICES LTDLondon · inc. Jan 2019
- WONGTON LTDLondon · inc. Jan 2019
All companies incorporated on 10 January 2019 · in Jan 2019.
09
Reminders for MARE CLAUSUM LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.