# THOONSEN LIMITED (13439937)

> THOONSEN LIMITED is an active private limited company (company number 13439937) incorporated on 4 June 2021, registered in Burgh Heath. Its registered activity is security systems service activities (SIC 80200). Latest abridged accounts cover the period ending 30 September 2025, showing net assets of £37k and cash of £21k, with 1 employee on average. As abridged accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 30% on the prior period (£53k).

- Status: Active
- Incorporated: 2021-06-04
- Registered office: Burgh Heath, KT20 6DP
- SIC 80200: Security systems service activities
- Next accounts due: 2027-06-30
- Confirmation statement due: 2027-06-18
- Accounts type: UNAUDITED ABRIDGED

By net assets it sits in the top quarter of 565 comparable companies in Greater London (median £3,393, upper quartile £35k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-09-30 | £37k | £21k | £23k | — | — | — | 1 |
| 2024-09-30 | £53k | £48k | £31k | — | — | — | 3 |

size band micro.

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

- Net assets above zero: Net assets £37,087 at 30 September 2025
- Net assets down 25% or more on the prior period: -30.4% vs prior period
- Incorporated five or more years ago: Incorporated 4 June 2021

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

## Persons with significant control

- Ms Claire Thoonsen — owns 25–50% of shares; holds 25–50% of voting rights, since 2021-06-04
- Mr Jacky Antoine Thoonsen — owns 50–75% of shares; holds 50–75% of voting rights, since 2021-06-04

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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/13439937
HTML: https://firmoscan.com/company/13439937-thoonsen-limited