# WHISTONBROOK TECHNOLOGIES LIMITED (03531322)

> WHISTONBROOK TECHNOLOGIES LIMITED is an active private limited company (company number 03531322) incorporated on 20 March 1998, registered in Harpenden. Its registered activity is manufacture of electronic measuring, testing etc. equipment, not for industrial process control (SIC 26511). Latest micro accounts cover the period ending 31 December 2025, showing net assets of −£13k, with 2 employees on average. Turnover was £25k and profit for the year −£24k. Net assets fell 261% on the prior period (£8,158).

- Status: Active
- Incorporated: 1998-03-20
- Registered office: Harpenden, AL5 3NS
- SIC 26511: Manufacture of electronic measuring, testing etc. equipment, not for industrial process control
- SIC 62020: Information technology consultancy activities
- SIC 72190: Other research and experimental development on natural sciences and engineering
- Next accounts due: 2027-09-30
- Confirmation statement due: 2027-04-03
- Accounts type: MICRO ENTITY

By net assets it sits in the bottom quarter of 889 comparable companies in the UK (median £28k, upper quartile £400k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-12-31 | −£13k | — | — | £4,889 | £25k | −£24k | 2 |
| 2024-12-31 | £8,158 | — | — | £7,571 | £54k | −£23k | — |

current ratio 2.17; net margin -95.8%; size band micro.

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

- Net assets below zero: Net assets £-13,133 at 31 December 2025
- Net assets down 25% or more on the prior period: -261.0% vs prior period
- Current assets at least 1.5× creditors within one year: Current ratio 2.17
- Incorporated five or more years ago: Incorporated 20 March 1998

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

## Persons with significant control

- Mrs Stephanie Jane Mcintyre — owns 25–50% of shares; holds 25–50% of voting rights, since 2016-04-06
- Mr Stephen John Edwards — owns 50–75% of shares; holds 50–75% of voting rights, 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/03531322
HTML: https://firmoscan.com/company/03531322-whistonbrook-technologies-limited