- Companies
- Machinery repair and installation
- Blackwood
- Isocount UK Limited
Isocount UK Limited
- Company number
- 08237509
- Incorporated
- 2 Oct 201214 years trading
- Registered office
- Unit 5C, Pentwyn Road, Blackwood, NP12 1HN
- Nature of business
- Repair of other equipment; Other professional, scientific and technical activities n.e.c.
Isocount UK Limited is a 14-year-old private limited company registered in Blackwood, company number 08237509, one of 20 machinery repair and installation companies in Blackwood. 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 down £16K (-2.9%) on the year before, to £536K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £874K against £672K owed within a year: 1.3 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £536K | £58K | £874K | £672K | 0 |
| 31 Dec 2024 | £552K | £42K | £862K | £691K | 14 |
| 31 Dec 2023 | £559K | £30K | £721K | £674K | 14 |
| 31 Dec 2022 | £414K | £51K | £832K | £747K | 12 |
| 31 Dec 2021 | £322K | £57K | £748K | £579K | 9 |
| 31 Dec 2020 | £382K | £73K | £706K | £698K | 8 |
| 31 Dec 2019 | £543K | £29K | £638K | £549K | 8 |
| 31 Dec 2018 | £301K | £41K | £677K | £614K | |
| 31 Dec 2017 | £227K | £18K | £664K | £620K | |
| 31 Dec 2016 | £217K | £134K | £643K | £490K |
Public contracts won
Isocount UK Limited has 2 public sector contract awards on record; the ones with their own published value total £243K, from 2022 to 2026. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Nuclear Restoration Services Limited1 award
- DSRL1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Nuclear Restoration Services Limited | Calibration, Service and Repair of Liquid Scintillation Counters | £151K | 25 Sep 2026 |
| DSRL | Maintenance of Laboratory Equipment On Dounreay Site | £92K | 24 Aug 2022 |
Where Isocount UK Limited is registered
The registered office is in Blackwood (NP12), in the Caerphilly local authority area, Wales. Show NP12 1HN on a map.
Other trade companies in NP12
- Hohm Property Group LtdProperty developers
- R&C Mechanics LimitedMechanics and garages
- M & R Property Solutions (SW) LimitedFinishing trades
- JLH Scaffolding LtdScaffolders
- SM Contracting SW LtdBuilders
- Top Notch Carpentry Services LimitedInstallers
- Cardiff Bathrooms LtdFinishing trades
- CB Brickwork & Building LtdSpecialist contractors
What happens if Isocount UK 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 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
- 08237509
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 October 2012 (14 years ago)
- Registered office
- Unit 5C, Pentwyn Road, Blackwood, NP12 1HN
- Nature of business
- Repair of other equipment (SIC 33190)
Other professional, scientific and technical activities n.e.c. (SIC 74909) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 2 October 2025
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 Blackwood
Other active machinery repair and installation companies registered in Blackwood.
- Jayci Plant Ltd2022
- Lectogic Limited2010
- LGR Services Limited2009
- Loading Maintenance Services Limited2012
- Millers Engineering Ltd2025
- Pagett Machinery Limited2013
- Paul Young Welding Services (UK) Limited2007
- Paylec Ltd2014
All machinery repair and installation companies in Blackwood · All trades in Blackwood · Machinery repair and installation across the UK
Frequently asked questions
When are Isocount UK Limited's accounts due?
Isocount UK Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Isocount UK Limited'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 Isocount UK Limited still trading?
Isocount UK 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 Isocount UK Limited do?
Isocount UK Limited is registered under Repair of other equipment (SIC 33190); Other professional, scientific and technical activities n.e.c. (SIC 74909).
How old is Isocount UK Limited?
Isocount UK Limited was incorporated on 2 October 2012, 14 years ago.
Has Isocount UK Limited won public sector contracts?
Yes. Isocount UK Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £243K), most recently from Nuclear Restoration Services Limited.
What is the penalty if Isocount UK 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 Isocount UK 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.