MAINSFORTH SUBSEA LTD
Company details
- Registered name
- MAINSFORTH SUBSEA LTD
- Company number
- 13145879
- Registered office
- KENSINGTON HOUSE, 3 KENSINGTON, BISHOP AUCKLAND, COUNTY DURHAM, DL14 6HX, ENGLAND · 213 other companies at this postcode
- Company type
- Private Limited Company
- Incorporated on
- 20 January 2021
- Status
- Active
- Age
- 5 years
- Nature of business (SIC)
- 71129 — Other engineering activities
- Accounts — next due
- 31 Oct 2027
- Accounts — last made up to
- 31 Jan 2026
- Confirmation statement — next due
- 27 Aug 2027
- Confirmation statement — last
- 13 Aug 2026
People with significant control
Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors
Corporate structure
Who controls this company, and who they control in turn
Connections
Change history
Reconstructed from the dated records Companies House publishes
| Date | Change | Was | Now |
|---|---|---|---|
| 31/08/2023 | Person with significant control added | — | Mrs Sarah Louise Parkin |
| 20/01/2021 | Person with significant control added | — | Andrew Parkin |
Financial highlights
Parsed from the filed statutory accounts (£ thousands, except employees)
| Metric | FY2026 | FY2025 |
|---|---|---|
| Total assets less current liabilities | 46 ▲ 33.8% | 34 |
| Net assets | 45 ▲ 33.8% | 33 |
| Employees (avg) | 2 | 2 |
Documents for MAINSFORTH SUBSEA LTD
Need this one company on file? Buy the document on its own — no plan required.
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.
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.
Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.
Data protection register
No entry found on the ICO register of fee payers under this name.
Not every organisation has to register — some are exempt. An absent entry is a question to ask, not a finding.
Get this company via API
Every field on this page is available as structured JSON behind one endpoint and one API key.
GET /v1/company/gb/13145879
X-Api-Key: $OPENDATA_KEYFrequently asked questions
What is the company number of MAINSFORTH SUBSEA LTD?▾
Where is MAINSFORTH SUBSEA LTD registered?▾
What is the SIC code of MAINSFORTH SUBSEA LTD?▾
Who controls MAINSFORTH SUBSEA LTD?▾
When are the next accounts of MAINSFORTH SUBSEA LTD due?▾
About MAINSFORTH SUBSEA LTD (13145879)
MAINSFORTH SUBSEA LTD is a private limited company incorporated on 20 January 2021 and registered in the United Kingdom under company number 13145879. Its registered office is at KENSINGTON HOUSE, 3 KENSINGTON, BISHOP AUCKLAND, COUNTY DURHAM, DL14 6HX, ENGLAND. The recorded nature of business is other engineering activities (SIC 71129). The company is currently active , with statutory accounts last made up to 31 January 2026. , and the person with significant control is Andrew Parkin. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.
Companies at the same registered office
Other engineering activities across UK registers
The same sector and the same company, seen through every register we hold
Explore by sector
Every UK company records what it does as a SIC code — browse the sectors around this one.