- Companies
- Civil engineering
- Stevenage
- Alsemia Engineering Ltd
Alsemia Engineering Ltd
- Company number
- 14822311
- Incorporated
- 24 Apr 20233 years trading
- Registered office
- 326 York Road, Stevenage, Hertfordshire, SG1 4HW
- Nature of business
- Construction of other civil engineering projects n.e.c.; Other engineering activities
Alsemia Engineering Ltd is a 3-year-old private limited company registered in Stevenage, company number 14822311, one of 43 civil engineering contractors in Stevenage. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £3,376 (+3.3%) on the year before, to £105K.
- Current assets of £107K against £26K owed within a year: 4.1 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £105K | £27K | £107K | £26K | 3 |
| 30 Apr 2024 | £102K | £51K | £98K | £27K | 3 |
Public contracts won
Alsemia Engineering Ltd has one public sector contract award on record (2026). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Affinity Water Limited | UVDB Powered by Achilles QUDM for Goods, Works and Services | Ceiling, not shown | 19 Aug 2026 |
Where Alsemia Engineering Ltd is registered
The registered office is in Stevenage (SG1), in the Stevenage local authority area, East of England. Show SG1 4HW on a map.
Other trade companies in SG1
- Masterplumbing&Heating LtdPlumbers and heating engineers
- Ohiggins Property Solutions LtdProperty developers
- Bird Detailing LtdCleaning companies
- Tedted Engineering LtdMechanics and garages
- DSS Facilities LtdFacilities management
- Macala Engineering LimitedSpecialist contractors
- Regency Detailing LtdMechanics and garages
- Ashtons Property Group LtdProperty developers
What happens if Alsemia Engineering 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 14822311
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 April 2023 (3 years ago)
- Registered office
- 326 York Road, Stevenage, Hertfordshire, SG1 4HW
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Other engineering activities (SIC 71129) - Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 23 April 2026
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 Stevenage
Other active civil engineering contractors registered in Stevenage.
- Churchward Properties and Construction Ltd2024
- Clearcut Civils Limited2012
- Devane Ltd2026
- Emysam Ltd2015
- Eric Engineering Ltd2017
- Freeway Construction Limited2005
- Fuselink Group Ltd2024
- G Naylor Construction Services Ltd2022
All civil engineering contractors in Stevenage · All trades in Stevenage · Civil engineering across the UK
Frequently asked questions
When are Alsemia Engineering Ltd's accounts due?
Alsemia Engineering Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Alsemia Engineering Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Alsemia Engineering Ltd still trading?
Alsemia Engineering 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 Alsemia Engineering Ltd do?
Alsemia Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Other engineering activities (SIC 71129).
How old is Alsemia Engineering Ltd?
Alsemia Engineering Ltd was incorporated on 24 April 2023, 3 years ago.
Has Alsemia Engineering Ltd won public sector contracts?
Yes. Alsemia Engineering Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from AFFINITY WATER LIMITED.
What is the penalty if Alsemia Engineering 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 Alsemia Engineering 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.