# MCM SUBSEA ENGINEERING (UK) LTD (13699167)

> MCM SUBSEA ENGINEERING (UK) LTD is an active private limited company (company number 13699167) incorporated on 22 October 2021, registered in Bury St. Edmunds. Its registered activity is engineering design activities for industrial process and production (SIC 71121). Latest micro accounts cover the period ending 31 October 2025, showing net assets of £122k, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 222% on the prior period (−£100k). Across the last 3 periods on record the net-asset trend is volatile.

- Status: Active
- Incorporated: 2021-10-22
- Registered office: Bury St. Edmunds, IP28 7DE
- SIC 71121: Engineering design activities for industrial process and production
- SIC 74100: Specialised design activities
- Next accounts due: 2027-07-31
- Confirmation statement due: 2026-11-05
- Accounts type: MICRO ENTITY

By net assets it sits in the top quarter of 1,165 comparable companies in Other (median £4,581, upper quartile £36k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-10-31 | £122k | — | — | £151k | — | — | 0 |
| 2024-10-31 | −£100k | — | — | £283k | — | — | 1 |
| 2023-10-31 | £24k | — | — | £197k | — | — | — |

current ratio 0.19; net assets trend volatile; size band micro.

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

- Net assets above zero: Net assets £121,908 at 31 October 2025
- Net assets up 10% or more on the prior period: +222.4% vs prior period
- Current assets below creditors within one year: Current ratio 0.19
- Three or more accounting periods on record: 3 periods on record
- Incorporated two to five years ago: Incorporated 22 October 2021

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

## Persons with significant control

- Vasileios Mylonas — owns 75–100% of shares, since 2021-10-22

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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/13699167
HTML: https://firmoscan.com/company/13699167-mcm-subsea-engineering-uk-ltd