- Companies
- Machinery repair and installation
- London
- Cidneu Investment Limited
Cidneu Investment Limited
- Company number
- 11099998
- Incorporated
- 6 Dec 20178 years trading
- Registered office
- 10 Balfe Street, London, N1 9EG
- Nature of business
- Installation of industrial machinery and equipment; Electrical installation; Buying and selling of own real estate; Other engineering activities
Cidneu Investment Limited is a 8-year-old private limited company registered in London, company number 11099998, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Cidneu Investment LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £9,712 (-15.7%) on the year before, to -£71K.
- Net assets rose in 0 of 7 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£71K | £1,424 | £174K | 0 | |
| 31 Dec 2024 | -£62K | £3,600 | £176K | 0 | |
| 31 Dec 2023 | -£40K | £2,339 | £174K | 0 | |
| 31 Dec 2022 | -£29K | £643 | £173K | 0 | |
| 31 Dec 2021 | -£20K | £2,421 | £175K | 0 | |
| 31 Dec 2020 | -£11K | £5,919 | £178K | 0 | |
| 31 Dec 2019 | -£10K | £100 | £172K | £0 | 0 |
| 31 Dec 2018 | £100 | £100 | 0 |
Where Cidneu Investment Limited is registered
The registered office is in London (N1), in the Islington local authority area, London. Show N1 9EG on a map.
Other trade companies in N1
- Tagwise LtdSpecialist contractors
- Sphere Aviation Solutions UK LtdMachinery repair and installation
- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
- Fleetstone Trading LtdMotor traders
- Kenneth Brady LtdElectricians
- UK Import Export LtdBuilders
- Magic Door Services LimitedMachinery repair and installation
Also registered at this address
3 other companies use the same registered office as Cidneu Investment Limited.
- Aside Group LimitedProperty developers
- K C Portman LimitedBuilders
- Nilebridge Continental Properties LimitedProperty developers
What happens if Cidneu Investment Limited 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 11099998
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 December 2017 (8 years ago)
- Registered office
- 10 Balfe Street, London, N1 9EG
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
Electrical installation (SIC 43210)
Buying and selling of own real estate (SIC 68100)
Other engineering activities (SIC 71129) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 27 June 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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.
- Cio Inspection Ltd2021
- Ciprian & Corina Ltd2026
- City & Co Contractors Limited2020
- City Engineering Limited1986
- City Espresso Limited2017
- CJR Renewables Ltd2026
- CK Direct Duct and Maintenance Limited2011
- Cleaning Equipment Sales and Services Limited2024
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Cidneu Investment Limited's accounts due?
Cidneu Investment Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Cidneu Investment Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Cidneu Investment Limited still trading?
Cidneu Investment Limited 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 Cidneu Investment Limited do?
Cidneu Investment Limited is registered under Installation of industrial machinery and equipment (SIC 33200); Electrical installation (SIC 43210); Buying and selling of own real estate (SIC 68100); Other engineering activities (SIC 71129).
How old is Cidneu Investment Limited?
Cidneu Investment Limited was incorporated on 6 December 2017, 8 years ago.
What is the penalty if Cidneu Investment Limited 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 Cidneu Investment Limited 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.