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- Carrickfergus
- Mack Consulting Engineering Ltd
Company profile · Machinery repair and installation
Mack Consulting Engineering Ltd
Mack Consulting Engineering Ltd is a 8-year-old private limited company registered in Carrickfergus, company number NI655673, one of 58 machinery repair and installation companies in Carrickfergus. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 September 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Mack Consulting Engineering Ltd over the years
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 £8,145 (-102.2%) on the year before, to -£173.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £5,765 against £106K owed within a year: 0.1 times cover.
- 1 employee on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£173 | £5,765 | £106K | 1 | |
| 30 Sep 2024 | £7,972 | £6,759 | £83K | 1 | |
| 30 Sep 2023 | £5,910 | £27K | £76K | 0 | |
| 30 Sep 2022 | £1,639 | £22K | £19K | 0 | |
| 30 Sep 2021 | £1 | ||||
| 30 Sep 2020 | £1 | ||||
| 30 Sep 2019 | £1 |
Who runs and owns Mack Consulting Engineering Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| K*** M*** | Director | Sep 2018 |
Person with significant control
Where Mack Consulting Engineering Ltd is registered
The registered office is in Carrickfergus (BT38), in the Mid and East Antrim local authority area, Northern Ireland. Show BT38 7AW on a map.
Other trade companies in BT38
- Bepsontee Autos LimitedMotor traders
- MK Aero Tech LtdMachinery repair and installation
- Agcontractingservices LtdMachinery repair and installation
- Elliott Electrical Contracts LtdInstallers
- CBNZ Aviation LtdMachinery repair and installation
- RCR (N.I.) LtdMechanics and garages
- McAtamney Garden Services LtdLandscapers and gardeners
- Medigas Engineering LimitedFacilities management
Shared registered office
68 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Mack Consulting 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- NI655673
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 September 2018 (8 years ago)
- Registered office
- 2 Market Place, Carrickfergus, BT38 7AW
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 22 September 2026
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 Carrickfergus
Other active machinery repair and installation companies registered in Carrickfergus.
- Mano Aviation Services Ltd2026
- Marindus Solutions (UK) Ltd2024
- MB Aerotech Ltd2019
- MJN Engineering Services Ltd2026
- MK Aero Tech Ltd2026
- ML Aerospace Ltd2017
- Murphy Aviation Services Ltd2026
- Oakley Aviation Ltd2025
All machinery repair and installation companies in Carrickfergus · All trades in Carrickfergus · Machinery repair and installation across the UK
Frequently asked questions
When are Mack Consulting Engineering Ltd's accounts due?
Mack Consulting Engineering Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Mack Consulting Engineering Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Mack Consulting Engineering Ltd still trading?
Mack Consulting 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 Mack Consulting Engineering Ltd do?
Mack Consulting Engineering Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is Mack Consulting Engineering Ltd?
Mack Consulting Engineering Ltd was incorporated on 12 September 2018, 8 years ago.
Who runs Mack Consulting Engineering Ltd?
Mack Consulting Engineering Ltd has 1 active director, the longest-serving appointed in Sep 2018. Their names and service addresses are on the Companies House register.
Who owns Mack Consulting Engineering Ltd?
One person or company has significant control of Mack Consulting Engineering Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Mack Consulting 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 Mack Consulting 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.