# INTRUDER ALERT SYSTEMS LTD (09230264)

> INTRUDER ALERT SYSTEMS LTD is an active private limited company (company number 09230264) incorporated on 23 September 2014, registered in Waterlooville. Its registered activity is security systems service activities (SIC 80200). Latest small accounts cover the period ending 29 September 2025, showing net assets of £52k and cash of £131k, with 9 employees on average. Net assets rose 2304% on the prior period (£2,175).

- Status: Active
- Incorporated: 2014-09-23
- Registered office: Waterlooville, PO7 7SQ
- SIC 80200: Security systems service activities
- Next accounts due: 2027-06-29
- Confirmation statement due: 2027-10-07
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the upper half of 53 comparable companies in Portsmouth (median £13k, upper quartile £60k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-09-29 | £52k | £131k | £282k | — | — | — | 9 |
| 2024-09-29 | £2,175 | £57k | £238k | — | — | — | 3 |

size band micro.

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

- Net assets above zero: Net assets £52,294 at 29 September 2025
- Net assets up 10% or more on the prior period: +2304.3% vs prior period
- Cash at bank of £50,000 or more: Cash £131,292
- Incorporated five or more years ago: Incorporated 23 September 2014

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

## Persons with significant control

- One Number Systems Ltd (corporate-entity) — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors, since 2016-04-06

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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/09230264
HTML: https://firmoscan.com/company/09230264-intruder-alert-systems-ltd