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  4. Abco Divers Limited

Abco Divers Limited

ActiveUnaudited abridged accountsSpecialist contractorsLisburn
Company number
NI034038
Incorporated
21 Apr 199828 years trading
Registered office
282 Moira Road, Lisburn, County Antrim, BT28 2TU
Nature of business
Other specialised construction activities n.e.c.
Accounts due in
110 days
31 Jan 2027
Net assets
£1.4M▲
+306.5% on the year before
Cash at bank
£489K▲
At 30 Apr 2025
Employees
8
Average during the year
From the Companies House register, 1 Oct 2026

Abco Divers Limited is a 28-year-old private limited company registered in Lisburn, company number NI034038, one of 25 specialist construction companies in Lisburn. 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.

Accounts due
31 Jan 2027
in 110 days
For the period to 30 Apr 2026
CT600 due
30 Apr 2027
in 199 days
Period 1 May 2025 to 30 Apr 2026
Corporation tax payment
1 Feb 2027
in 111 days
9 months and 1 day after the period end
Confirmation statement
3 May 2027
in 202 days
Last made up to 19 Apr 2026

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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 £1.1M (+306.5%) on the year before, to £1.4M.
  • Net assets rose in 8 of 9 year-on-year comparisons on record.
  • Current assets of £2M against £795K owed within a year: 2.6 times cover.
  • 8 employees on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K£1M30 April 2016: net assets £222K£222K201630 April 2017: net assets £289K£289K201730 April 2018: net assets £360K£360K201830 April 2019: net assets £542K£542K201930 April 2020: net assets £626K£626K202030 April 2021: net assets £60K£60K202130 April 2022: net assets £61K£61K202230 April 2023: net assets £234K£234K202330 April 2024: net assets £354K£354K202430 April 2025: net assets £1.4M£1.4M2025
Net assets at each year end, 2016 to 2025£0£500K£1M30 April 2016: net assets £222K£222K'1630 April 2017: net assets £289K£289K'1730 April 2018: net assets £360K£360K'1830 April 2019: net assets £542K£542K'1930 April 2020: net assets £626K£626K'2030 April 2021: net assets £60K£60K'2130 April 2022: net assets £61K£61K'2230 April 2023: net assets £234K£234K'2330 April 2024: net assets £354K£354K'2430 April 2025: net assets £1.4M£1.4M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Apr 2025£1.4M£489K£2M£795K8
30 Apr 2024£354K£151K£697K£445K8
30 Apr 2023£234K£87K£745K£600K8
30 Apr 2022£61K£91K£501K£525K8
30 Apr 2021£60K£2,089£493K£498K5
30 Apr 2020£626K£11K£876K£315K5
30 Apr 2019£542K£4,721£1.3M£777K5
30 Apr 2018£360K£6,459£762K£463K5
30 Apr 2017£289K£2,705£408K£172K5
30 Apr 2016£222K£19K£443K£287K

Public contracts won

Abco Divers Limited has 2 public sector contract awards on record; the ones with their own published value total £372K, from 2022 to 2026. Source: Contracts Finder and Find a Tender award notices. For 1 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. 1 of these were matched by the company's exact name because the notice gave no company number.

Awards by year

20221
20261

Main buyers

  • Affinity Water Limited1 award
  • Department for Infrastructure1 award
BuyerContractValueAwarded
Affinity Water LimitedUVDB Powered by Achilles QUDM for Goods, Works and ServicesCeiling, not shown19 Aug 2026
Department for InfrastructureDfI Roads and Rivers - Term Contract for Underwater and Confined Spaces Inspection Services£372K23 Mar 2022

Where Abco Divers Limited is registered

Abco Divers Limited's registered office on a map of the UK

The registered office is in Lisburn (BT28), in the Lisburn and Castlereagh local authority area, Northern Ireland. Show BT28 2TU on a map.

Other trade companies in BT28

Also registered at this address

3 other companies use the same registered office as Abco Divers Limited.

What happens if Abco Divers 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 January 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Feb 2027 to 28 Feb 2027£150
1 to 3 months late1 Mar 2027 to 30 Apr 2027£375
3 to 6 months late1 May 2027 to 31 Jul 2027£750
More than 6 months lateFrom 1 Aug 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 May 2027£200
3 months late30 Jul 2027another £200
6 months late30 Oct 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Apr 2028another 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
NI034038
Status
Active
Company type
Private limited company
Incorporated
21 April 1998 (28 years ago)
Registered office
282 Moira Road, Lisburn, County Antrim, BT28 2TU
Nature of business
Other specialised construction activities n.e.c. (SIC 43999)
Year end
30 April (accounting reference date)
Accounts type
Unaudited abridged
Last accounts made up to
30 April 2025
Last confirmation statement
19 April 2026
Charges (mortgages)
0 outstanding of 1 registered

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 Lisburn

Other active specialist construction companies registered in Lisburn.

All specialist construction companies in Lisburn · All trades in Lisburn · Specialist contractors across the UK

Frequently asked questions

When are Abco Divers Limited's accounts due?

Abco Divers Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.

When is Abco Divers Limited'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 Abco Divers Limited still trading?

Abco Divers 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 Abco Divers Limited do?

Abco Divers Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).

How old is Abco Divers Limited?

Abco Divers Limited was incorporated on 21 April 1998, 28 years ago.

Has Abco Divers Limited won public sector contracts?

Yes. Abco Divers Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £372K), most recently from AFFINITY WATER LIMITED.

What is the penalty if Abco Divers 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 Abco Divers Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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