- Companies
- Installers
- Kilmarnock
- External Consultancy Group Limited
External Consultancy Group Limited
- Company number
- SC500706
- Incorporated
- 17 Mar 201511 years trading
- Registered office
- 11 Portland Road, Kilmarnock, Ayrshire, KA1 2BT
- Nature of business
- Other construction installation
External Consultancy Group Limited is a 11-year-old private limited company registered in Kilmarnock, company number SC500706, one of 24 installation companies (insulation, lifts, shutters and similar) in Kilmarnock. Its next accounts are due at Companies House on 23 March 2027, and the CT600 for the period to 23 June 2026 is due at HMRC on 23 June 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 £5,764 (+87%) on the year before, to -£864.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £3,236 against £4,838 owed within a year: 0.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 25 Jun 2025 | -£864 | £3,236 | £4,838 | 1 | |
| 25 Jun 2024 | -£6,628 | £5,332 | £13K | 1 | |
| 25 Jun 2023 | -£6,723 | £5,876 | £14K | 1 | |
| 25 Jun 2022 | -£13K | £8,128 | £23K | 1 | |
| 25 Jun 2021 | -£12K | £8,662 | £23K | 1 | |
| 25 Jun 2020 | -£18K | £1,153 | £22K | 1 | |
| 31 Dec 2018 | -£9,808 | £2,767 | £15K | ||
| 31 Dec 2017 | -£2,513 | £4,445 | £8,355 | ||
| 31 Dec 2016 | £4,037 | £7,561 | £4,202 | ||
| 31 Dec 2015 | £615 | £4,253 |
Where External Consultancy Group Limited is registered
The registered office is in Kilmarnock (KA1), in the East Ayrshire local authority area, Scotland. Show KA1 2BT on a map.
Other trade companies in KA1
- MM Electrical Instalations LtdElectricians
- Cornerstone Project Management LtdBuilders
- JCC.Vertex Build LtdElectricians
- Deo Property Consortium LimitedProperty developers
- Jake Robb Joinery LimitedJoiners and carpenters
- Cby Plumbing & Heating Solutions LtdPlumbers and heating engineers
- Elite Installs Scotland LtdPlumbers and heating engineers
- Elevate Joinery & Conservatory Specialist Ayrshire LimitedJoiners and carpenters
Also registered at this address
3 other companies use the same registered office as External Consultancy Group Limited.
- Andrew Gilfillan & Company LimitedPlumbers and heating engineers
- Lda Contracts LtdBuilders
- Newmilns Motors LtdMechanics and garages
What happens if External Consultancy Group 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 23 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Mar 2027 to 23 Apr 2027 | £150 |
| 1 to 3 months late | 24 Apr 2027 to 23 Jun 2027 | £375 |
| 3 to 6 months late | 24 Jun 2027 to 23 Sep 2027 | £750 |
| More than 6 months late | From 24 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 24 Jun 2027 | £200 |
| 3 months late | 23 Sep 2027 | another £200 |
| 6 months late | 23 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 23 Jun 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
- SC500706
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 March 2015 (11 years ago)
- Registered office
- 11 Portland Road, Kilmarnock, Ayrshire, KA1 2BT
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 23 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 25 June 2025
- Last confirmation statement
- 18 January 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Kilmarnock
Other active installation companies (insulation, lifts, shutters and similar) registered in Kilmarnock.
- Fitment Limited2025
- Gilchrist Installations Limited2024
- GLH Utilities (Scotland) Limited2007
- Hodge Landscaping & Fencing Contractors Limited2026
- Home Multi Trade Ltd2025
- Integrated Access Services Ltd2023
- JMCG Fabrication Ltd2025
- Ken Edgar Play Area Specialist Limited2002
All installation companies (insulation, lifts, shutters and similar) in Kilmarnock · All trades in Kilmarnock · Installers across the UK
Frequently asked questions
When are External Consultancy Group Limited's accounts due?
External Consultancy Group Limited's next accounts are due at Companies House by 23 March 2027 (in 161 days), covering the period to 23 June 2026.
When is External Consultancy Group Limited's CT600 due?
The CT600 for the period to 23 June 2026 is due at HMRC by 23 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 24 March 2027.
Is External Consultancy Group Limited still trading?
External Consultancy Group 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 External Consultancy Group Limited do?
External Consultancy Group Limited is registered under Other construction installation (SIC 43290).
How old is External Consultancy Group Limited?
External Consultancy Group Limited was incorporated on 17 March 2015, 11 years ago.
What is the penalty if External Consultancy Group 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 External Consultancy Group 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.