Company
Portnahaven Management Company LTD
Official record Companies House · updated 4th October 2026 · Sources
Network
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Who leads it
Previous officers 1
- Philip John Tweedie 2017-2021 View profile
Directors and secretaries as filed at Companies House.
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About
- Incorporated
- 30/01/2017
Ownership
Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.
- NI627551 ceased 2021-11-17
75-100% shares (firm) · notified 2017-01-30 - Possible match - name could not be confirmed to one individualiPossible matchThis PSC filing could not be confirmed to one individual. Not shown as confirmed ownership.
Group
- Portnahaven Management Company LTD
is controlled by NI627551
Evidence
ceased 75-100% shares (firm) · notified 2017-01-30, ceased 2021-11-17 · source: Companies House PSC register - NI627551
is controlled by Mervyn Thomas Mcalister
Evidence
active significant influence · notified 2016-04-06 · source: Companies House PSC register
Ultimately controlled by Mervyn Thomas Mcalister.
18 other companies in this group
- Mcalister Developments (Ballycairn) Limited
- NI645099
- Townscape Land Planning Associates Limited
- Mcalister Developments (Ballymena RD) Limited
- NI627551
- Gillespie Store Management Company LTD
- Mcalister Developments (Moneymore) Limited
- Mcalister Developments (Knock Road) Limited
- Glass Island View Management Company Limited
- Ballycairn Management Company LTD
- Mcalister Developments (Mullaghboy) Limited
- Mcalister Developments (Rathlin RD) Limited
- NI645098
- Mcalister Developments (QRH) Limited
- Mcalister Developments (Lakeside) Limited
- Wheaton Developments Limited
- Foxfields (Coleraine) Management Company Limited
- MC Alister Builders LTD
Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.
Board analysis
Board DNA
How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.
4 directors on the board
- Michael Mckeown Director · appointed 2021
- Eugene Maguire Director · appointed 2025
- Samuel Graham Knox Director · appointed 2025
- Jennifer Karen Nelson Director · appointed 2022
First-time vs portfolio directors
First-time (4)
- Michael Mckeown Director · appointed 2021
- Eugene Maguire Director · appointed 2025
- Samuel Graham Knox Director · appointed 2025
- Jennifer Karen Nelson Director · appointed 2022
Gaps to watch
- No director brings board experience from anywhere else
- Narrow spread of sectors across the board
Where to look Suggested search: a director with board experience elsewhere; directors from a wider range of sectors.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- NI643486
- Status
- Active
- Type
- Private Limited Company
- Edition
- Register edition compiled 4th October 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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