- Companies
- Machinery repair and installation
- Carrickfergus
- Ac Automation (U.K.) Limited
Ac Automation (U.K.) Limited
- Company number
- NI038043
- Incorporated
- 7 Mar 200026 years trading
- Registered office
- Trooperslane Industrial Estate, 5, Sloefield Park, Carrickfergus, BT38 8GR
- Nature of business
- Repair of other equipment; Agents involved in the sale of machinery, industrial equipment, ships and aircraft
Ac Automation (U.K.) Limited is a 26-year-old private limited company registered in Carrickfergus, company number NI038043, one of 58 machinery repair and installation companies in Carrickfergus. 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.
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Public contracts won
Ac Automation (U.K.) Limited has 4 public sector contract awards on record; the ones with their own published value total £274K, from 2021 to 2026. Source: Contracts Finder and Find a Tender award notices. For 2 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. 3 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- NHS Shared Business Services Limited1 award
- Queen's University Belfast1 award
- Belfast Health and Social Care Trust1 award
- Translink1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| NHS Shared Business Services Limited | Hard Facilities Management 3 | Ceiling, not shown | 25 Aug 2026 |
| Queen's University Belfast | 260072 Maintenance Services to Generators | £274K | 10 Jun 2026 |
| Belfast Health and Social Care Trust | Maintenance of Generator Sets including Alternators, Control Systems, Local and Remote ACB Switching Controls | Ceiling, not shown | 2 Jun 2026 |
| Translink | Translink - Supply, Installation and Commissioning of Generator Sets for Enterprise NIR | 10 Feb 2021 |
Where Ac Automation (U.K.) Limited is registered
The registered office is in Carrickfergus (BT38), in the Mid and East Antrim local authority area, Northern Ireland. Show BT38 8GR 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
What happens if Ac Automation (U.K.) Limited 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
- NI038043
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 March 2000 (26 years ago)
- Registered office
- Trooperslane Industrial Estate, 5, Sloefield Park, Carrickfergus, BT38 8GR
- Nature of business
- Repair of other equipment (SIC 33190)
Agents involved in the sale of machinery, industrial equipment, ships and aircraft (SIC 46140) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 March 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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.
- Acorn Aviation Ltd2024
- Agcontractingservices Ltd2026
- Ar Aerospace Ltd2016
- Asap Access Ltd2014
- B2 Engineering Solutions Ltd2016
- Bde Secure Power Ltd2016
- BS Aero Ltd2025
- Canning Engineering Ltd2021
All machinery repair and installation companies in Carrickfergus · All trades in Carrickfergus · Machinery repair and installation across the UK
Frequently asked questions
When are Ac Automation (U.K.) Limited's accounts due?
Ac Automation (U.K.) Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Ac Automation (U.K.) Limited'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 Ac Automation (U.K.) Limited still trading?
Ac Automation (U.K.) Limited 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 Ac Automation (U.K.) Limited do?
Ac Automation (U.K.) Limited is registered under Repair of other equipment (SIC 33190); Agents involved in the sale of machinery, industrial equipment, ships and aircraft (SIC 46140).
How old is Ac Automation (U.K.) Limited?
Ac Automation (U.K.) Limited was incorporated on 7 March 2000, 26 years ago.
Has Ac Automation (U.K.) Limited won public sector contracts?
Yes. Ac Automation (U.K.) Limited has 4 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £274K), most recently from NHS Shared Business Services Limited.
What is the penalty if Ac Automation (U.K.) Limited 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 Ac Automation (U.K.) Limited 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.