# MARIO ZALEW LTD (07100412)

> MARIO ZALEW LTD is an active private limited company (company number 07100412) incorporated on 10 December 2009, registered in London. Its registered activity is manufacture of other builders' carpentry and joinery (SIC 16230). Latest small accounts cover the period ending 31 December 2025, showing net assets of £195 and cash of £34k, with 2 employees on average. Net assets fell 72% on the prior period (£694).

- Status: Active
- Incorporated: 2009-12-10
- Registered office: London, SW2 1QN
- SIC 16230: Manufacture of other builders' carpentry and joinery
- Next accounts due: 2027-09-30
- Confirmation statement due: 2026-12-24
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the lower half of 380 comparable companies in London (median £2,830, upper quartile £19k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-12-31 | £195 | £34k | — | £34k | — | — | 2 |
| 2024-12-31 | £694 | £24k | — | £23k | — | — | 2 |

current ratio 1.01; size band micro.

## Filing and accounts signals (facts, not a rating)

- Net assets above zero: Net assets £195 at 31 December 2025
- Net assets down 25% or more on the prior period: -71.9% vs prior period
- Incorporated five or more years ago: Incorporated 10 December 2009

How each signal is derived: https://firmoscan.com/methodology

## Persons with significant control

- Mr Mariusz Zalewski — owns 75–100% of shares, since 2016-12-09

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Source: Companies House register snapshot 2026-08-31, Open Government Licence v3.0. Information may have changed since that date and is not advice or a credit reference; check the official record before relying on it. Official record: https://find-and-update.company-information.service.gov.uk/company/07100412
HTML: https://firmoscan.com/company/07100412-mario-zalew-ltd