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Company number
08938325

MAINSTAY MARINE SOLUTIONS LIMITED

Active
✓ Active company on the official register. Next accounts due 31 March 2027.

Company details

Wales, Wales Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
MAINSTAY MARINE SOLUTIONS LIMITED
Company number
08938325
Registered office
THE DOCKYARD, PEMBROKE DOCK, PEMBROKESHIRE, SA72 6TE · 2 other companies at this postcode
Company type
Private Limited Company
Incorporated on
13 March 2014
Status
Active
Age
12 years
Previous names
MUSTANG MARINE LIMITED (to 12 Jun 2015)
Nature of business (SIC)
30110 — Building of ships and floating structures
Accounts — next due
31 Mar 2027
Accounts — last made up to
30 Jun 2025
Confirmation statement — next due
27 Mar 2027
Confirmation statement — last
13 Mar 2026

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Jd Marine Holdings Ltd
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 12/02/2025
Mr Stewart Maurice Graves
owns 25–50% of shares
Notified 06/04/2016

Corporate structure

Who controls this company, and who they control in turn

2 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Corporate owner owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 12/02/2025
Mr Stewart Maurice Graves
born 08/1950 · Wales owns 25–50% of shares Control ended 12/02/2025 Controls 2 companies

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
12/02/2025 Person with significant control ceased Mr Stewart Maurice Graves
12/02/2025 Person with significant control added Jd Marine Holdings Ltd
06/04/2016 Person with significant control added Mr Stewart Maurice Graves
12/06/2015 Registered name changed MUSTANG MARINE LIMITED MAINSTAY MARINE SOLUTIONS LIMITED

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2025FY2024
Total assets less current liabilities 762
▼ 42.7%
1,332
Net assets 8
▼ 98.7%
667
Employees (avg) 53
▼ 5.4%
56

Documents for MAINSTAY MARINE SOLUTIONS LIMITED

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Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

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Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Data protection register

Registered with the Information Commissioner's Office as a data protection fee payer.

Mainstay Marine Solutions Limited — SA72 6TE
Trading as Mainstay Marine Solutions Ltd
Tier 2 · renews 15/08/2027
ICO entry

The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.

Get this company via API

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Frequently asked questions

What is the company number of MAINSTAY MARINE SOLUTIONS LIMITED?
According to the official registry, the company number of MAINSTAY MARINE SOLUTIONS LIMITED is 08938325.
Where is MAINSTAY MARINE SOLUTIONS LIMITED registered?
The registered office is THE DOCKYARD, PEMBROKE DOCK, PEMBROKESHIRE, SA72 6TE.
What is the SIC code of MAINSTAY MARINE SOLUTIONS LIMITED?
The nature of business is recorded under SIC code 30110 — Building of ships and floating structures.
Who controls MAINSTAY MARINE SOLUTIONS LIMITED?
Jd Marine Holdings Ltd is recorded as a person with significant control, and owns 75–100% of shares, holds 75–100% of voting rights, can appoint and remove directors.
When are the next accounts of MAINSTAY MARINE SOLUTIONS LIMITED due?
The next annual accounts are due by 31 March 2027, and the last accounts were made up to 30 June 2025.

About MAINSTAY MARINE SOLUTIONS LIMITED (08938325)

MAINSTAY MARINE SOLUTIONS LIMITED is a private limited company incorporated on 13 March 2014 and registered in the United Kingdom under company number 08938325. Its registered office is at THE DOCKYARD, PEMBROKE DOCK, PEMBROKESHIRE, SA72 6TE. The recorded nature of business is building of ships and floating structures (SIC 30110). The company is currently active , with statutory accounts last made up to 30 June 2025. , and the person with significant control is Jd Marine Holdings Ltd. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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