- Companies
- Machinery repair and installation
- Norwich
- River & Sea Marine Services Ltd
River & Sea Marine Services Ltd
- Company number
- 16329211
- Incorporated
- 19 Mar 20251 year trading
- Registered office
- Meadow View King Street, Neatishead, Norwich, NR12 8BW
- Nature of business
- Repair and maintenance of ships and boats
River & Sea Marine Services Ltd is a 1-year-old private limited company registered in Norwich, company number 16329211, one of 153 machinery repair and installation companies in Norwich. Its next accounts are due at Companies House on 19 December 2026, and its first CT600 is due at HMRC on 18 March 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where River & Sea Marine Services Ltd is registered
The registered office is in Norwich (NR12), in the North Norfolk local authority area, East of England. Show NR12 8BW on a map.
Other trade companies in NR12
- JTJ Electrical Services LtdElectricians
- Broadland Vehicle Services LimitedMechanics and garages
- Stalham Car Sales LtdMotor traders
- Powercell Commercial Assets LimitedCivil engineering
- Ringwood Group LtdFinishing trades
- Wroxham Hand Car Wash LtdCleaning companies
- RH Comp LtdBuilders
- FTP Motor Services LtdMechanics and garages
What happens if River & Sea Marine Services 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 19 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Dec 2026 to 19 Jan 2027 | £150 |
| 1 to 3 months late | 20 Jan 2027 to 19 Mar 2027 | £375 |
| 3 to 6 months late | 20 Mar 2027 to 19 Jun 2027 | £750 |
| More than 6 months late | From 20 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16329211
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 March 2025 (1 year ago)
- Registered office
- Meadow View King Street, Neatishead, Norwich, NR12 8BW
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 18 March 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Norwich
Other active machinery repair and installation companies registered in Norwich.
- S.Crosby Services Ltd2018
- Sabena Marine Ltd2019
- Saltmarsh Marine Ltd2023
- SGH Catering & Bakery Engineers Ltd2018
- Sionosa Airlandtrans Ltd2026
- Soanes Fire Ltd2024
- Sontec (Electronics) Limited1985
- Sontec Holdings Limited1995
All machinery repair and installation companies in Norwich · All trades in Norwich · Machinery repair and installation across the UK
Frequently asked questions
When are River & Sea Marine Services Ltd's accounts due?
River & Sea Marine Services Ltd's next accounts are due at Companies House by 19 December 2026 (in 67 days), covering the period to 31 March 2026.
When is River & Sea Marine Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 March 2026, due by 18 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is River & Sea Marine Services Ltd still trading?
River & Sea Marine Services 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 River & Sea Marine Services Ltd do?
River & Sea Marine Services Ltd is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is River & Sea Marine Services Ltd?
River & Sea Marine Services Ltd was incorporated on 19 March 2025, 1 year ago.
What is the penalty if River & Sea Marine Services 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 River & Sea Marine Services 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.