- Companies
- Specialist contractors
- Southampton
- Oceantech UK Ltd
Oceantech UK Ltd
- Company number
- 06115967
- Incorporated
- 19 Feb 200719 years trading
- Registered office
- 10 Smith Grove, Hedge End, Southampton, Hants, SO30 0JH
- Nature of business
- Other specialised construction activities n.e.c.
Oceantech UK Ltd is a 19-year-old private limited company registered in Southampton, company number 06115967, one of 202 specialist construction companies in Southampton. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 down £3,216 (-10.1%) on the year before, to £29K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £41K against £14K owed within a year: 2.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £29K | £32K | £41K | £14K | 1 |
| 31 Mar 2025 | £32K | £28K | £45K | £15K | 1 |
| 31 Mar 2024 | £26K | £31K | £31K | £7,951 | 1 |
| 31 Mar 2023 | £22K | £20K | £30K | £12K | 1 |
| 31 Mar 2022 | £23K | £23K | £8,715 | 1 | |
| 31 Mar 2021 | £19K | £23K | £8,796 | 1 | |
| 31 Mar 2020 | £14K | £23K | £13K | 1 |
Where Oceantech UK Ltd is registered
The registered office is in Southampton (SO30), in the Eastleigh local authority area, South East. Show SO30 0JH on a map.
Other trade companies in SO30
- Masters Vehicle Solutions LtdMechanics and garages
- JG Projects 02 LtdFinishing trades
- GW Installations LimitedGlaziers
- Winterstone Systems LtdElectricians
- Stay Sure Drives and Patios LtdLandscapers and gardeners
- Epc Upgrade Group LtdElectricians
- Ross Maynard Projects LtdProperty developers
- Picca Compliance LimitedElectricians
What happens if Oceantech UK 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 06115967
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 February 2007 (19 years ago)
- Registered office
- 10 Smith Grove, Hedge End, Southampton, Hants, SO30 0JH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 19 February 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 Southampton
Other active specialist construction companies registered in Southampton.
- Old Oak Carpentry Limited2014
- Omni Group Holdings Ltd2026
- On Electrical Ltd2005
- On-Line Brickwork Limited2009
- On-Point Building Contractors Ltd2015
- P & K Lacey (Construction) Limited2016
- Paines Contractors Limited2018
- Parata Services Limited2025
All specialist construction companies in Southampton · All trades in Southampton · Specialist contractors across the UK
Frequently asked questions
When are Oceantech UK Ltd's accounts due?
Oceantech UK Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Oceantech UK Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Oceantech UK Ltd still trading?
Oceantech UK 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 Oceantech UK Ltd do?
Oceantech UK Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Oceantech UK Ltd?
Oceantech UK Ltd was incorporated on 19 February 2007, 19 years ago.
What is the penalty if Oceantech UK 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 Oceantech UK 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.