- Companies
- Machinery repair and installation
- Reading
- Primus Scientific Limited
Primus Scientific Limited
- Company number
- 07323265
- Incorporated
- 22 Jul 201016 years trading
- Registered office
- 6 Rossendale Road, Caversham, Reading, Berks, RG4 5JU
- Nature of business
- Repair of other equipment
Primus Scientific Limited is a 16-year-old private limited company registered in Reading, company number 07323265, one of 74 machinery repair and installation companies in Reading. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £7,057 (-61.7%) on the year before, to £4,389.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £35K against £31K owed within a year: 1.1 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 31 Jul 2025 | £4,389 | £35K | £31K | 2 | |
| 31 Jul 2024 | £11K | £50K | £39K | 2 | |
| 31 Jul 2023 | £1,753 | £51K | £49K | 2 | |
| 31 Jul 2022 | -£761 | £23K | £9,767 | 2 | |
| 31 Jul 2021 | £3,749 | £18K | £3,909 | 3 | |
| 31 Jul 2020 | £2,325 | £21K | £8,056 | 2 | |
| 31 Jul 2019 | £2,593 | £26K | £11K | ||
| 31 Jul 2018 | £2,514 | £21K | £6,028 | ||
| 31 Jul 2017 | £2,324 | £24K | £10K | ||
| 31 Jul 2016 | £1,468 | £7,886 | £18K | £6,450 |
Where Primus Scientific Limited is registered
The registered office is in Reading (RG4), in the Reading local authority area, South East. Show RG4 5JU on a map.
Other trade companies in RG4
- Soma Garden LtdLandscapers and gardeners
- Katharos Cleaning Specialist LimitedCleaning companies
- Cosi Cool LtdPlumbers and heating engineers
- Hadley Home Renovations LimitedBuilders
- Ahmz Motor Group LtdMotor traders
- Green Workspaces LtdLandscapers and gardeners
- Nature Wipes LtdCleaning companies
- Dukes Conservation LimitedSpecialist contractors
What happens if Primus Scientific 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 07323265
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 July 2010 (16 years ago)
- Registered office
- 6 Rossendale Road, Caversham, Reading, Berks, RG4 5JU
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 22 July 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 Reading
Other active machinery repair and installation companies registered in Reading.
- Prosafe Locksmiths Limited2021
- QRRS Limited2021
- RCW Rigging Services Limited2013
- Rechner (UK) Limited2000
- Repair & Calibration Ltd2023
- Rosewood Building Services Limited2011
- Skoki Autos Ltd2014
- Smart Space Electrical Limited2021
All machinery repair and installation companies in Reading · All trades in Reading · Machinery repair and installation across the UK
Frequently asked questions
When are Primus Scientific Limited's accounts due?
Primus Scientific Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Primus Scientific Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Primus Scientific Limited still trading?
Primus Scientific 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 Primus Scientific Limited do?
Primus Scientific Limited is registered under Repair of other equipment (SIC 33190).
How old is Primus Scientific Limited?
Primus Scientific Limited was incorporated on 22 July 2010, 16 years ago.
What is the penalty if Primus Scientific 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 Primus Scientific 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.