- Companies
- Specialist contractors
- Sheffield
- JM Plant Training & Testing Ltd
JM Plant Training & Testing Ltd
- Company number
- 10180045
- Incorporated
- 13 May 201610 years trading
- Registered office
- 1 Fox Holes Grove, Crow Edge, Sheffield, S36 4HN
- Nature of business
- Other specialised construction activities n.e.c.
JM Plant Training & Testing Ltd is a 10-year-old private limited company registered in Sheffield, company number 10180045, one of 267 specialist construction companies in Sheffield. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £1,444 (+2.5%) on the year before, to £59K.
- Net assets rose in 7 of 8 year-on-year comparisons on record.
- Current assets of £50K against £27K owed within a year: 1.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £59K | £50K | £27K | 1 | |
| 31 May 2024 | £58K | £65K | £14K | 1 | |
| 31 May 2023 | £49K | £55K | £13K | 1 | |
| 31 May 2022 | £37K | £43K | £15K | 1 | |
| 31 May 2021 | £27K | £37K | £21K | 1 | |
| 31 May 2020 | £29K | £18K | £1,928 | 1 | |
| 31 May 2019 | £27K | £38K | £11K | ||
| 31 May 2018 | £18K | £23K | £4,973 | 1 | |
| 31 May 2017 | £8,356 | £16K | £7,291 |
Who runs and owns JM Plant Training & Testing Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** M*** | Director | May 2016 |
Person with significant control
Where JM Plant Training & Testing Ltd is registered
The registered office is in Sheffield (S36), in the Barnsley local authority area, Yorkshire and The Humber. Show S36 4HN on a map.
Other trade companies in S36
- Biohazard by Squeaky Clean LtdCleaning companies
- Surescope Property LtdSpecialist contractors
- Mac4 Solutions LtdProperty developers
- NR Domestics LtdRepair services
- Nyxn Commercial LimitedMotor traders
- S36 Motors LtdMotor traders
- Davis Gas & Heat LimitedPlumbers and heating engineers
- Apex Plastering Yorkshire LtdPlasterers
What happens if JM Plant Training & Testing 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10180045
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 May 2016 (10 years ago)
- Registered office
- 1 Fox Holes Grove, Crow Edge, Sheffield, S36 4HN
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 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 Sheffield
Other active specialist construction companies registered in Sheffield.
- Jones Services Ltd2025
- JP Construction (Sy) Limited2018
- K B Interiors Limited2005
- Keystone Monarch Ltd2024
- Krio Limited2020
- L & K Height Safety Limited2006
- L.M.N Construction Services Ltd2023
- Labs Building Services Ltd2016
All specialist construction companies in Sheffield · All trades in Sheffield · Specialist contractors across the UK
Frequently asked questions
When are JM Plant Training & Testing Ltd's accounts due?
JM Plant Training & Testing Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is JM Plant Training & Testing Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is JM Plant Training & Testing Ltd still trading?
JM Plant Training & Testing 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 JM Plant Training & Testing Ltd do?
JM Plant Training & Testing Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is JM Plant Training & Testing Ltd?
JM Plant Training & Testing Ltd was incorporated on 13 May 2016, 10 years ago.
Who runs JM Plant Training & Testing Ltd?
JM Plant Training & Testing Ltd has 1 active director, the longest-serving appointed in May 2016. Their names and service addresses are on the Companies House register.
Who owns JM Plant Training & Testing Ltd?
One person or company has significant control of JM Plant Training & Testing Ltd: an individual (owns 50% to 75% of the shares).
What is the penalty if JM Plant Training & Testing 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 JM Plant Training & Testing 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.