- Companies
- Civil engineering
- London
- Sputnyx Limited
Sputnyx Limited
- Company number
- 04372919
- Incorporated
- 13 Feb 200224 years trading
- Registered office
- Dfo Consulting Churchill House, 120 Bunns Lane, London, NW7 2AS
- Nature of business
- Construction of other civil engineering projects n.e.c.
Sputnyx Limited is a 24-year-old private limited company registered in London, company number 04372919, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 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 unchanged on the year before, at £79K.
- Net assets rose in 0 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £79K | £79K | £79K | 1 | |
| 28 Feb 2025 | £79K | £79K | £79K | £0 | 1 |
| 29 Feb 2024 | £79K | £96K | £96K | £17K | 1 |
| 28 Feb 2023 | £79K | £96K | £96K | £17K | 1 |
| 28 Feb 2022 | £79K | £96K | £96K | £17K | 1 |
| 28 Feb 2021 | £81K | £102K | £102K | £20K | 1 |
| 29 Feb 2020 | £92K | £102K | £10K | 1 | |
| 28 Feb 2019 | £102K | £108K | £6,308 | ||
| 28 Feb 2018 | £102K | £151K | £48K | ||
| 28 Feb 2017 | £125K | £160K | £35K |
Where Sputnyx Limited is registered
The registered office is in London (NW7), in the Barnet local authority area, London. Show NW7 2AS on a map.
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What happens if Sputnyx 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 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 04372919
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 February 2002 (24 years ago)
- Registered office
- Dfo Consulting Churchill House, 120 Bunns Lane, London, NW7 2AS
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 13 February 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- SQR Investigations and Testing Limited2026
- Squarerail Limited2023
- SS Engineering Limited2024
- SSK Construction Ltd2014
- ST Albans Groundworks Ltd2026
- ST Ivy Maintenance & Electrical Solutions Ltd2025
- Stalwarth Ltd2025
- Steadwise Solutions Trading Ltd2023
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Sputnyx Limited's accounts due?
Sputnyx Limited's next accounts are due at Companies House by 30 November 2027 (in 414 days), covering the period to 28 February 2027.
When is Sputnyx Limited's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Sputnyx Limited still trading?
Sputnyx 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 Sputnyx Limited do?
Sputnyx Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Sputnyx Limited?
Sputnyx Limited was incorporated on 13 February 2002, 24 years ago.
What is the penalty if Sputnyx 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 Sputnyx 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.