- Companies
- Specialist contractors
- London
- Rainmaker Renewables Alpha Ltd
Rainmaker Renewables Alpha Ltd
- Company number
- 09873531
- Incorporated
- 16 Nov 201510 years trading
- Registered office
- Office 205 Albert House, 256-260 Old Street, London, EC1V 9DD
- Nature of business
- Other specialised construction activities n.e.c.
Rainmaker Renewables Alpha Ltd is a 10-year-old private limited company registered in London, company number 09873531, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 up £248K (+26.8%) on the year before, to -£676K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £209K against £11K owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | -£676K | £101K | £209K | £11K | 0 |
| 29 Feb 2024 | -£924K | £82K | £83K | £7,750 | 0 |
| 28 Feb 2023 | -£1M | £43K | £44K | £11K | 0 |
| 28 Feb 2022 | -£1M | £128K | £130K | £13K | 0 |
| 28 Feb 2021 | -£1.1M | £258K | £260K | £6,818 | 0 |
| 29 Feb 2020 | -£1.2M | £142K | £155K | £3,310 | |
| 28 Feb 2020 | -£1.2M | £142K | £155K | £3,310 | 0 |
| 28 Feb 2019 | -£1.1M | £224K | £274K | £21K | |
| 28 Feb 2018 | -£1.1M | £183K | £207K | £7,019 | |
| 30 Nov 2016 | -£225K | £285K | £319K |
Where Rainmaker Renewables Alpha Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 9DD on a map.
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What happens if Rainmaker Renewables Alpha 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 09873531
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 November 2015 (10 years ago)
- Registered office
- Office 205 Albert House, 256-260 Old Street, London, EC1V 9DD
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 8 November 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Ramcam Media Ltd2021
- Ramel Services Ltd2025
- Rami-Hmo's Ltd2026
- Ramjany Maintenance Services Ltd2025
- Rams Property Services Ltd2026
- Ramu Group Ltd2025
- Ranagroupofconstructionandrenovation Ltd2024
- Rangefield Construction Ltd2024
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Frequently asked questions
When are Rainmaker Renewables Alpha Ltd's accounts due?
Rainmaker Renewables Alpha Ltd's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Rainmaker Renewables Alpha Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Rainmaker Renewables Alpha Ltd still trading?
Rainmaker Renewables Alpha 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 Rainmaker Renewables Alpha Ltd do?
Rainmaker Renewables Alpha Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Rainmaker Renewables Alpha Ltd?
Rainmaker Renewables Alpha Ltd was incorporated on 16 November 2015, 10 years ago.
What is the penalty if Rainmaker Renewables Alpha 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 Rainmaker Renewables Alpha 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.