- Companies
- Specialist contractors
- Portsmouth
- Safe T Marine Ltd
Safe T Marine Ltd
- Company number
- 06585693
- Incorporated
- 6 May 200818 years trading
- Registered office
- 1 Stanley Avenue, Copnor, Portsmouth, PO3 6PL
- Nature of business
- Other specialised construction activities n.e.c.; Engineering related scientific and technical consulting activities; Other professional, scientific and technical activities n.e.c.
Safe T Marine Ltd is a 18-year-old private limited company registered in Portsmouth, company number 06585693, one of 193 specialist construction companies in Portsmouth. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £4,606 (+3.8%) on the year before, to £127K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £133K against £8,100 owed within a year: more than 10 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £127K | £128K | £133K | £8,100 | 1 |
| 31 May 2024 | £122K | £132K | £133K | £11K | 1 |
| 31 May 2023 | £108K | £113K | £115K | £7,498 | 3 |
| 31 May 2022 | £117K | £119K | £119K | £6,225 | 1 |
| 31 May 2021 | £114K | £122K | £122K | 1 | |
| 31 May 2020 | £118K | £119K | £120K | £8,265 | 1 |
| 31 May 2019 | £128K | £130K | £132K | £11K | |
| 31 May 2018 | £131K | £132K | £134K | £8,638 | 1 |
| 31 May 2017 | £150K | £155K | £5,711 | ||
| 31 May 2016 | £143K | £150K | £154K | £12K |
Who runs and owns Safe T Marine Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| B*** T*** | Director | May 2008 |
| A*** T*** | Secretary | May 2008 |
Person with significant control
Where Safe T Marine Ltd is registered
The registered office is in Portsmouth (PO3), in the Portsmouth local authority area, South East. Show PO3 6PL on a map.
Other trade companies in PO3
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- New Milton Decor LtdPainters and decorators
- Portsmouth Autos LtdMechanics and garages
- Henley Roofing Group LimitedInstallers
- I’M Covered 365 Ac LtdPlumbers and heating engineers
- Scope Bodyshop LtdMechanics and garages
- GP Technical LtdSpecialist contractors
What happens if Safe T Marine Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 06585693
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 May 2008 (18 years ago)
- Registered office
- 1 Stanley Avenue, Copnor, Portsmouth, PO3 6PL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Engineering related scientific and technical consulting activities (SIC 71122)
Other professional, scientific and technical activities n.e.c. (SIC 74909) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 6 May 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Portsmouth
Other active specialist construction companies registered in Portsmouth.
- Saje UPVC Limited1989
- SBC Fitout Ltd2019
- Scion Construction & Development Ltd2010
- Scott Cantlow Fabrication Limited2015
- SCT Civil Engineering Ltd2014
- Sec GB&NI Ltd2021
- Seven Hills Developments Limited2023
- SGM Support Services Limited2026
All specialist construction companies in Portsmouth · All trades in Portsmouth · Specialist contractors across the UK
Frequently asked questions
When are Safe T Marine Ltd's accounts due?
Safe T Marine Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Safe T Marine Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Safe T Marine Ltd still trading?
Safe T Marine Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Safe T Marine Ltd do?
Safe T Marine Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Engineering related scientific and technical consulting activities (SIC 71122); Other professional, scientific and technical activities n.e.c. (SIC 74909).
How old is Safe T Marine Ltd?
Safe T Marine Ltd was incorporated on 6 May 2008, 18 years ago.
Who runs Safe T Marine Ltd?
Safe T Marine Ltd has 1 active director, the longest-serving appointed in May 2008. Their names and service addresses are on the Companies House register.
Who owns Safe T Marine Ltd?
One person or company has significant control of Safe T Marine Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Safe T Marine Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Safe T Marine Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.