# ISOMASS LTD (05963201)

> ISOMASS LTD is an active private limited company (company number 05963201) incorporated on 11 October 2006, registered in Cambridge. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest small accounts cover the period ending 30 September 2025, showing net assets of £170 and cash of £9,158, with 6 employees on average. Net assets fell 100% on the prior period (£56k).

- Status: Active
- Incorporated: 2006-10-11
- Registered office: Cambridge, CB4 0WS
- SIC 43999: Other specialised construction activities n.e.c.
- SIC 71122: Engineering related scientific and technical consulting activities
- Next accounts due: 2027-06-30
- Confirmation statement due: 2027-10-25
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the lower half of 160 comparable companies in Cambridge (median £10k, upper quartile £81k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-09-30 | £170 | £9,158 | £168k | — | — | — | 6 |
| 2024-09-30 | £56k | £54k | £176k | — | — | — | 6 |

size band micro.

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

- Net assets above zero: Net assets £170 at 30 September 2025
- Net assets down 25% or more on the prior period: -99.7% vs prior period
- Incorporated five or more years ago: Incorporated 11 October 2006

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

## Persons with significant control

- Mr Iain Alexander Mair — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors, since 2016-04-06
- Mr Alexander Michael Bignell — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors, since 2025-11-07

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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/05963201
HTML: https://firmoscan.com/company/05963201-isomass-ltd