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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers 5
  • 1
    Costello, Ian Michal
    Born in April 1983
    Individual (4 offsprings)
    Officer
    2023-12-06 ~ now
    OF - Director → CIF 0
    Costello, Ian
    Individual (4 offsprings)
    Officer
    2023-12-06 ~ now
    OF - Secretary → CIF 0
    Mr Ian Michal Costello
    Born in April 1983
    Individual (4 offsprings)
    Person with significant control
    2023-12-06 ~ now
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
  • 2
    Irwin, Alan
    Born in November 1983
    Individual (3 offsprings)
    Officer
    2025-11-01 ~ now
    OF - Director → CIF 0
  • 3
    Thoms, Alan
    Born in November 1986
    Individual (4 offsprings)
    Officer
    2023-12-06 ~ now
    OF - Director → CIF 0
    Thoms, Alan
    Individual (4 offsprings)
    Officer
    2023-12-06 ~ now
    OF - Secretary → CIF 0
    Mr Alan Thoms
    Born in November 1986
    Individual (4 offsprings)
    Person with significant control
    2023-12-06 ~ now
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
    PE - Ownership of voting rights - More than 25% but not more than 50%CIF 0
  • 4
    Barrowman, Stephen
    Director born in July 1964
    Individual (1 offspring)
    Officer
    2023-12-06 ~ 2024-06-05
    OF - Director → CIF 0
    Barrowman, Stephen
    Individual (1 offspring)
    Officer
    2023-12-06 ~ 2024-06-05
    OF - Secretary → CIF 0
    Mr Stephen Barrowman
    Born in July 1964
    Individual (1 offspring)
    Person with significant control
    2023-12-06 ~ 2024-06-05
    PE - Ownership of voting rights - More than 25% but not more than 50%CIF 0
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
  • 5
    Graham, Stephen
    Born in July 1965
    Individual (6 offsprings)
    Officer
    2025-06-18 ~ now
    OF - Director → CIF 0
parent relation
Company in focus

HARBOURSIDE SEA SCHOOL LTD

Period: 2023-12-06 ~ now
Company number: 15331984
Registered name
HARBOURSIDE SEA SCHOOL LTD - now
Standard Industrial Classification
85510 - Sports And Recreation Education
Brief company account
Property, Plant & Equipment
68,240 GBP2025-12-31
43,680 GBP2024-12-31
Cash at bank and in hand
3,971 GBP2025-12-31
2,048 GBP2024-12-31
Net Current Assets/Liabilities
-48,853 GBP2025-12-31
-50,474 GBP2024-12-31
Net Assets/Liabilities
19,387 GBP2025-12-31
-6,794 GBP2024-12-31
Equity
Called up share capital
99 GBP2025-12-31
99 GBP2024-12-31
Retained earnings (accumulated losses)
19,288 GBP2025-12-31
-6,893 GBP2024-12-31
Equity
19,387 GBP2025-12-31
-6,794 GBP2024-12-31
Average Number of Employees
42025-01-01 ~ 2025-12-31
22024-01-01 ~ 2024-12-31
Property, Plant & Equipment - Gross Cost
Plant and equipment
88,419 GBP2025-12-31
54,600 GBP2024-12-31
Property, Plant & Equipment - Gross Cost
96,219 GBP2025-12-31
54,600 GBP2024-12-31
Vehicles
7,800 GBP2025-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Plant and equipment
26,419 GBP2025-12-31
10,920 GBP2024-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
27,979 GBP2025-12-31
10,920 GBP2024-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
Plant and equipment
15,499 GBP2025-01-01 ~ 2025-12-31
Vehicles
1,560 GBP2025-01-01 ~ 2025-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
17,059 GBP2025-01-01 ~ 2025-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Vehicles
1,560 GBP2025-12-31
Property, Plant & Equipment
Plant and equipment
62,000 GBP2025-12-31
43,680 GBP2024-12-31
Vehicles
6,240 GBP2025-12-31
Finance Lease Liabilities - Total Present Value
Amounts falling due within one year
11,510 GBP2025-12-31
10,600 GBP2024-12-31
Taxation/Social Security Payable
Amounts falling due within one year
-10,642 GBP2025-12-31
Other Creditors
Amounts falling due within one year
51,956 GBP2025-12-31
41,922 GBP2024-12-31

  • HARBOURSIDE SEA SCHOOL LTD
    Info
    Registered number 15331984
    Liverpool Marina, Coburg Wharf, Liverpool, Coburg Wharf, Liverpool L3 4BP
    PRIVATE LIMITED COMPANY incorporated on 2023-12-06 (2 years 5 months). The status of the company number is Active.
    The last date of confirmation statement was made at 2026-02-11
    CIF 0
child relation
Offspring entities and appointments 0
  • Not found in our database.

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Contains public sector information retrieved at 22 April 2026 and licensed under the Open Government Licence v3.0.