Alphagen Ltd
- Company number
- 14942715
- Incorporated
- 19 Jun 20233 years trading
- Registered office
- 1 Dunston Place, Dunston Road, Chesterfield, S41 8NL
- Nature of business
- Installation of industrial machinery and equipment; Production of electricity; Trade of electricity; Electrical installation
Alphagen Ltd is a 3-year-old private limited company registered in Chesterfield, company number 14942715, one of 85 machinery repair and installation companies in Chesterfield. 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 down £3,459 (-593.3%) on the year before, to -£4,042.
- Current assets of £828K against £833K owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£4,042 | £651 | £828K | £833K | 0 |
| 30 Jun 2024 | -£583 | £28K | £740K | £741K | 0 |
Where Alphagen Ltd is registered
The registered office is in Chesterfield (S41), in the Chesterfield local authority area, East Midlands. Show S41 8NL on a map.
Other trade companies in S41
- You Motors LtdMotor traders
- Lets Volt LimitedElectricians
- LD Flooring Group LtdFloor and wall tilers
- DB Power Solutions LtdMachinery repair and installation
- Atk Arb Maintenance LtdLandscapers and gardeners
- Convertspace LtdBuilders
- TGH Industrial Spray Services LtdPainters and decorators
- 3B'S Electrical LtdElectricians
Also registered at this address
1 other company uses the same registered office as Alphagen Ltd.
- Alphagen Systems LimitedElectricians
What happens if Alphagen 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 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
- 14942715
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 June 2023 (3 years ago)
- Registered office
- 1 Dunston Place, Dunston Road, Chesterfield, S41 8NL
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
Production of electricity (SIC 35110)
Trade of electricity (SIC 35140)
Electrical installation (SIC 43210) - Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 16 February 2026
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 Chesterfield
Other active machinery repair and installation companies registered in Chesterfield.
- Aps GB Limited2009
- Armoto Ltd2015
- Automotive Equipment Services Ltd2026
- Av Machine Tool Support Limited2013
- Azserv.Co.UK Limited2009
- Brew Technician UK Ltd2025
- C.E.S Contracting Ltd2020
- Central Electrical Limited2006
All machinery repair and installation companies in Chesterfield · All trades in Chesterfield · Machinery repair and installation across the UK
Frequently asked questions
When are Alphagen Ltd's accounts due?
Alphagen Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Alphagen Ltd'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 Alphagen Ltd still trading?
Alphagen 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 Alphagen Ltd do?
Alphagen Ltd is registered under Installation of industrial machinery and equipment (SIC 33200); Production of electricity (SIC 35110); Trade of electricity (SIC 35140); Electrical installation (SIC 43210).
How old is Alphagen Ltd?
Alphagen Ltd was incorporated on 19 June 2023, 3 years ago.
What is the penalty if Alphagen 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 Alphagen 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.