- Companies
- Civil engineering
- London
- Joule Bumbuna Operations Limited
Joule Bumbuna Operations Limited
- Company number
- 11643959
- Incorporated
- 26 Oct 20187 years trading
- Registered office
- 6 Heddon Street, London, W1B 4BT
- Nature of business
- Construction of utility projects for electricity and telecommunications; Construction of other civil engineering projects n.e.c.
Joule Bumbuna Operations Limited is a 7-year-old private limited company registered in London, company number 11643959, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
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 £917.
- Net assets rose in 0 of 4 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 5 years, 2019 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2023 | £917 | £1,083 | 0 | ||
| 30 Jun 2022 | £917 | £1,083 | 0 | ||
| 30 Jun 2021 | £917 | £1,083 | 0 | ||
| 30 Jun 2020 | £1,000 | £1,000 | 0 | ||
| 30 Jun 2019 | £1,000 |
Where Joule Bumbuna Operations Limited is registered
The registered office is in London (W1B), in the Westminster local authority area, London. Show W1B 4BT on a map.
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Also registered at this address
1 other company uses the same registered office as Joule Bumbuna Operations Limited.
- Joule Africa LimitedCivil engineering
What happens if Joule Bumbuna Operations 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 11643959
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 October 2018 (7 years ago)
- Registered office
- 6 Heddon Street, London, W1B 4BT
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- 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.
- Joule Group International Limited2016
- JP Drainage Ltd2026
- JR Metal Management Ltd2025
- JRC Earthworks Ltd2026
- Jsangarie Ltd2018
- JSF Surveying Ltd2013
- JSPC Group Ltd2024
- Junior Clement Aisien Limited2022
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Joule Bumbuna Operations Limited's accounts due?
Joule Bumbuna Operations Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Joule Bumbuna Operations Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Joule Bumbuna Operations Limited still trading?
Joule Bumbuna Operations 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 Joule Bumbuna Operations Limited do?
Joule Bumbuna Operations Limited is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Joule Bumbuna Operations Limited?
Joule Bumbuna Operations Limited was incorporated on 26 October 2018, 7 years ago.
What is the penalty if Joule Bumbuna Operations 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 Joule Bumbuna Operations 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.