- Companies
- Civil engineering
- Manchester
- Quantrum Civils Ltd
Quantrum Civils Ltd
- Company number
- 11144337
- Incorporated
- 11 Jan 20188 years trading
- Registered office
- 76 King Street, Manchester, M2 4NH
- Nature of business
- Construction of other civil engineering projects n.e.c.
Quantrum Civils Ltd is a 8-year-old private limited company registered in Manchester, company number 11144337, one of 241 civil engineering contractors in Manchester. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £81K (+123.6%) on the year before, to £147K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £27K against £29K owed within a year: 0.9 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £147K | £27K | £29K | 2 | |
| 31 Jan 2024 | £66K | £152K | £38K | 3 | |
| 31 Jan 2023 | £66K | £152K | £38K | 2 | |
| 31 Jan 2022 | £41K | £95K | £59K | 3 | |
| 31 Jan 2021 | £316 | £1,006 | 0 | ||
| 31 Jan 2020 | £2 | ||||
| 31 Jan 2019 | £2 |
Where Quantrum Civils Ltd is registered
The registered office is in Manchester (M2), in the Manchester local authority area, North West. Show M2 4NH on a map.
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Also registered at this address
1 other company uses the same registered office as Quantrum Civils Ltd.
- The Professional Cleaning Company LimitedCleaning companies
What happens if Quantrum Civils 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 11144337
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 January 2018 (8 years ago)
- Registered office
- 76 King Street, Manchester, M2 4NH
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 10 January 2026
- Previous names
- Tri-Stag Ltd (until 10 Mar 2020)
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Manchester
Other active civil engineering contractors registered in Manchester.
- R. & M. Developments Limited1982
- R4 Plant Hire Limited2012
- Ray & Rah Investment Ltd2016
- Redburn Traffic Management Ltd2023
- Regal Crescent Rail Ltd2022
- Revolway Ltd2025
- Ricardo W Rail Ltd2020
- Riosardo Utility Solutions Ltd2026
All civil engineering contractors in Manchester · All trades in Manchester · Civil engineering across the UK
Frequently asked questions
When are Quantrum Civils Ltd's accounts due?
Quantrum Civils Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Quantrum Civils Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Quantrum Civils Ltd still trading?
Quantrum Civils 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 Quantrum Civils Ltd do?
Quantrum Civils Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Quantrum Civils Ltd?
Quantrum Civils Ltd was incorporated on 11 January 2018, 8 years ago.
What is the penalty if Quantrum Civils 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 Quantrum Civils 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.