- Companies
- Machinery repair and installation
- London
- Tramontana Tech Ltd
Tramontana Tech Ltd
- Company number
- 17231111
- Incorporated
- 20 May 2026
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Repair and maintenance of aircraft and spacecraft
Tramontana Tech Ltd is a newly incorporated private limited company registered in London, company number 17231111, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 20 February 2028, and its first CT600 is due at HMRC on 19 May 2028.
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.
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Where Tramontana Tech Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
Other trade companies in W1W
- Civaris LtdSpecialist contractors
- R&R Construction Group LtdBuilders
- Aurum Cooling LtdPlumbers and heating engineers
- Steam Wood Stone LtdFinishing trades
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- Group Atlas Financial 83 LtdPainters and decorators
- Energy Reward LtdMotor traders
- Holly’S Housekeeping LtdCleaning companies
Shared registered office
97 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Tramontana Tech 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 20 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Feb 2028 to 20 Mar 2028 | £150 |
| 1 to 3 months late | 21 Mar 2028 to 20 May 2028 | £375 |
| 3 to 6 months late | 21 May 2028 to 20 Aug 2028 | £750 |
| More than 6 months late | From 21 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17231111
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 May 2026
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
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 London
Other active machinery repair and installation companies registered in London.
- Transport & Operator Maszyn Ltd2025
- Trident Electronics Ltd2024
- Trimetron Ltd2025
- Triumph Engineering (UK) Co. Ltd2016
- Truevolt Services Ltd2026
- Trulox Ltd2019
- TS Renewable Service Limited2022
- Tsol Projects Ltd2023
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Tramontana Tech Ltd's accounts due?
Tramontana Tech Ltd's next accounts are due at Companies House by 20 February 2028 (in 495 days), covering the period to 31 May 2027.
When is Tramontana Tech 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 19 May 2027, due by 19 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Tramontana Tech Ltd still trading?
Tramontana Tech 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 Tramontana Tech Ltd do?
Tramontana Tech Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is Tramontana Tech Ltd?
Tramontana Tech Ltd was incorporated on 20 May 2026, less than a year ago.
What is the penalty if Tramontana Tech 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 Tramontana Tech 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.