ActiveNI670545Private limited companyLisburn

ABCO MARINE SERVICES LTD

Significant control: Brendan Osborne (25–50%), John Vincent Osborne (25–50%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

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What does Abco Marine Services Ltd sell?

Registered activity: Construction of water projects (SIC 42910). We’re building product and service lists for UK companies. Get this one when it’s ready.

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01

Summary

Generated from filed data · no estimates

ABCO MARINE SERVICES LTD is an active private limited company (company number NI670545) incorporated on 25 June 2020, registered in Lisburn. Its registered activity is construction of water projects (SIC 42910). Latest abridged accounts cover the period ending 30 April 2025, showing net assets of £101k and cash of £1,502, with 11 employees on average. As abridged accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 622% on the prior period (£14k).

Peer position · net assets

By net assets it sits in the upper half of 634 comparable companies in the UK (median £9,932, upper quartile £105k).

02

Ownership and control

2 active
  • Mr Brendan Osborne
    Individual · since 25 June 2020
    • owns 25–50% of shares
    • holds 25–50% of voting rights
  • Mr John Vincent Osborne
    Individual · since 25 June 2020
    • owns 25–50% of shares
    • holds 25–50% of voting rights

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.

03

Key dates

Incorporated
25 June 20206 yrs ago
Next accounts due
30 January 2027in 94 days
Confirmation statement due
9 July 2027in 254 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

04

Activity

SIC 42910
Construction of water projects
SIC 43999
Other specialised construction activities n.e.c.
Accounts type
Unaudited Abridged
Size band
MicroCompanies Act thresholds
05

Financials

2 periods on record · latest ending 30 April 2025
Net assets
£101k
+622%vs Apr 2024
Cash at bank
£1,502
−93%vs Apr 2024
Turnover
Not disclosed
Employees
11
+22%vs Apr 2024
Net assets
£101k
Cash at bank
£1,502
Average employees
11
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
30 April 2025£101k£1,502£75k———11
30 April 2024£14k£21k£28k———9
Cash per employee£137Cash ÷ average employees

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.

06

Filing and accounts signals

Facts from the register · no rating
  • Net assets above zeroNet assets £101,379 at 30 April 2025
  • Net assets up 10% or more on the prior period+621.8% vs prior period
  • Incorporated five or more years agoIncorporated 25 June 2020

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

07

Timeline

Newest first
  1. Confirmation statement duein 254 days
  2. Next accounts duein 94 days
  3. Accounts period endNet assets £101k · abridged accounts
  4. Accounts period endNet assets £14k · abridged accounts
  5. Incorporated
08

Similar companies in Belfast

Same activity (construction of water projects), closest in incorporation date
09

Reminders for ABCO MARINE SERVICES LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31; accounts from the Companies House accounts data product. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown. Contact us about this company.