- Companies
- Specialist contractors
- Omagh
- STM (N.I.) Ltd
STM (N.I.) Ltd
- Company number
- NI641514
- Incorporated
- 17 Oct 20169 years trading
- Registered office
- c/o C/O CT McNabb & Co, 38 Gortin Road, Omagh, BT79 7HX
- Nature of business
- Other specialised construction activities n.e.c.
STM (N.I.) Ltd is a 9-year-old private limited company registered in Omagh, company number NI641514, one of 64 specialist construction companies in Omagh. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for STM (N.I.) LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £1,834 (-1.3%) on the year before, to £145K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £182K against £25K owed within a year: 7.4 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £145K | £1,978 | £182K | £25K | 0 |
| 31 Mar 2024 | £147K | £31K | £245K | £98K | 0 |
| 31 Mar 2023 | £135K | £16K | £153K | £17K | 0 |
| 31 Mar 2022 | £114K | £1,854 | £121K | £6,697 | 0 |
| 31 Mar 2021 | £118K | £119K | £1,089 | 0 | |
| 31 Mar 2020 | £137K | £9,596 | £160K | £23K | 0 |
| 31 Mar 2019 | £119K | £157K | £39K | ||
| 31 Mar 2018 | £76K | £115K | £40K |
Where STM (N.I.) Ltd is registered
The registered office is in Omagh (BT79), in the Fermanagh and Omagh local authority area, Northern Ireland. Show BT79 7HX on a map.
Other trade companies in BT79
- Marcoy LtdProperty developers
- Wattworx Electrical LtdElectricians
- CTS Repowering LtdInstallers
- C-More Home Improvement LtdBuilders
- Broadleaf Construction Services LtdProperty developers
- Peak Performance Tuning LtdMechanics and garages
- Ec Poultry & Maintenance LtdInstallers
- Galetech Operations UK LtdMachinery repair and installation
Also registered at this address
20 other companies use the same registered office as STM (N.I.) Ltd.
- A4 Accident & Repair Centre LtdMechanics and garages
- Ashfort Properties LtdBuilders
- BM Contracts Services LtdBuilders
- BML Contracts (N.I.) LtdCivil engineering
- CML Construction LtdProperty developers
- Corlin LimitedSpecialist contractors
- DJC Maintenance LtdMachinery repair and installation
- FPK Sales LimitedMotor traders
- Gaf Plant Hire LtdBuilders
- Gallaghers Car Sales (N.I.) LtdMotor traders
- Ham-Con (N.I.) LtdProperty developers
- JM Tyres (NTS) LtdMotor traders
- McLaughlin Contracts (NI) LimitedCivil engineering
- Meenagh Contracts LtdSpecialist contractors
- Meenmossagh Utilities LtdInstallers
- MMS Consultancy (N.I.) LtdSpecialist contractors
- Noel Bradley LtdBuilders
- SC Pave LimitedSpecialist contractors
- Tyrone Utilities LtdCivil engineering
- WJ McLaughlin and Sons LimitedCivil engineering
What happens if STM (N.I.) 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- NI641514
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2016 (9 years ago)
- Registered office
- c/o C/O CT McNabb & Co, 38 Gortin Road, Omagh, BT79 7HX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 October 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 Omagh
Other active specialist construction companies registered in Omagh.
- Thermowall Limited2020
- TT Thermal Insulation and Fire Protection Limited2002
- Tyrcon Construction Ltd2026
- View2Build Limited2017
- Woodvale Lowry JV Limited2023
- A W Contracts Ltd2014
- All Set Up Ltd2020
- Arc Construction (Omagh) Ltd2016
All specialist construction companies in Omagh · All trades in Omagh · Specialist contractors across the UK
Frequently asked questions
When are STM (N.I.) Ltd's accounts due?
STM (N.I.) Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is STM (N.I.) Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is STM (N.I.) Ltd still trading?
STM (N.I.) 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 STM (N.I.) Ltd do?
STM (N.I.) Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is STM (N.I.) Ltd?
STM (N.I.) Ltd was incorporated on 17 October 2016, 9 years ago.
What is the penalty if STM (N.I.) 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 STM (N.I.) 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.