- Companies
- Electricians
- Gloucester
- Mirus Energy Ltd
Mirus Energy Ltd
- Company number
- 12373135
- Incorporated
- 20 Dec 20196 years trading
- Registered office
- Epsilon House the Square Gloucester Business Park, Brockworth, Gloucester, Gloucestershire, GL3 4AD
- Nature of business
- Electrical installation; Combined facilities support activities
Mirus Energy Ltd is a 6-year-old private limited company registered in Gloucester, company number 12373135, one of 159 electrical contractors in Gloucester. 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.
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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 £87K (+15%) on the year before, to £669K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £990K against £380K owed within a year: 2.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £669K | £325K | £990K | £380K | 0 |
| 31 Dec 2024 | £582K | £377K | £746K | £207K | 0 |
| 31 Dec 2023 | £679K | £462K | £844K | £291K | 22 |
| 31 Dec 2022 | £715K | £968K | £1.8M | £1.2M | 21 |
| 31 Dec 2021 | £117K | £175K | £623K | £505K | 17 |
| 31 Dec 2020 | £55K | £43K | £328K | £255K | 1 |
Where Mirus Energy Ltd is registered
The registered office is in Gloucester (GL3), in the Tewkesbury local authority area, South West. Show GL3 4AD on a map.
Other trade companies in GL3
- S Carter Electrical LtdElectricians
- MN Maintenance and Management LimitedInstallers
- Ram (Southwest) LtdBuilders
- RF Harries & Co LtdBuilders
- PJT Installations LtdSpecialist contractors
- SLTR LimitedMotor traders
- J&B Cleaning Services LtdCleaning companies
- Xtra Space Construction LtdBuilders
Also registered at this address
1 other company uses the same registered office as Mirus Energy Ltd.
- Quarhouse Property LtdProperty developers
What happens if Mirus Energy 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 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
- 12373135
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 December 2019 (6 years ago)
- Registered office
- Epsilon House the Square Gloucester Business Park, Brockworth, Gloucester, Gloucestershire, GL3 4AD
- Nature of business
- Electrical installation (SIC 43210)
Combined facilities support activities (SIC 81100) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 19 December 2025
- Previous names
- Ashley James (SW) Ltd (until 28 Apr 2023)
Homesafe Services Ltd (until 22 May 2020)
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Gloucester
Other active electrical contractors registered in Gloucester.
- Mjboon Electrical Ltd2021
- MS LN Electrical Ltd2012
- Mullaney Electrical Limited2023
- Nis Electrical Limited2020
- Opalux Group Limited2024
- P H Electrical Limited2003
- Peps Contracting Limited2020
- Peps Electrical Limited2013
All electrical contractors in Gloucester · All trades in Gloucester · Electricians across the UK
Frequently asked questions
When are Mirus Energy Ltd's accounts due?
Mirus Energy Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Mirus Energy Ltd'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 Mirus Energy Ltd still trading?
Mirus Energy 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 Mirus Energy Ltd do?
Mirus Energy Ltd is registered under Electrical installation (SIC 43210); Combined facilities support activities (SIC 81100).
How old is Mirus Energy Ltd?
Mirus Energy Ltd was incorporated on 20 December 2019, 6 years ago.
What is the penalty if Mirus Energy 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 Mirus Energy 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.