MAINPORT SEISMIC SUPPORT LIMITED
MAINPORT SEISMIC SUPPORT LIMITED is a Private limited company (Ltd.) registered in Ireland under IE663933, and its current status with Companies Registration Office (CRO) is active. The company was incorporated on 10 January 2020 and lists its registered address as CORK T12 AH9T, Ireland. 2 shareholders are on record for MAINPORT SEISMIC SUPPORT LIMITED, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Companies Registration Office (CRO) and was last updated on 22 October 2026.
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Shareholders
2
Two shareholders are currently on record for MAINPORT SEISMIC SUPPORT LIMITED, held on the Annual Return (Form B1) under section 342 of the Companies Act 2014, which the register supplies only on payment.
The largest of these is IRISH MAINPORT HOLDINGS LIMITED, holding 100% — a majority holding — followed by CLIFTON INVESTMENT VENTURES LIMITED at 0%.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| IRISH MAINPORT HOLDINGS LIMITED | 100% | Companies Registration Office (CRO) | |
| CLIFTON INVESTMENT VENTURES LIMITED | 0% | Companies Registration Office (CRO) |
Group Structure
MAINPORT SEISMIC SUPPORT LIMITED sits 3 levels below its ultimate parent, SUCCESSO LIMITED, registered in Ireland. The full chain up to SUCCESSO LIMITED is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by MAINPORT SEISMIC SUPPORT LIMITED's own shareholder record.
SUCCESSO LIMITED
Ireland
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Frequently Asked Questions
Who owns MAINPORT SEISMIC SUPPORT LIMITED?
Two shareholders are currently on record for MAINPORT SEISMIC SUPPORT LIMITED, held on the Annual Return (Form B1) under section 342 of the Companies Act 2014, which the register supplies only on payment. The largest of these is IRISH MAINPORT HOLDINGS LIMITED, holding 100% — a majority holding — followed by CLIFTON INVESTMENT VENTURES LIMITED at 0%. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is MAINPORT SEISMIC SUPPORT LIMITED's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for MAINPORT SEISMIC SUPPORT LIMITED is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does MAINPORT SEISMIC SUPPORT LIMITED have on record?
2 shareholders are shown on record for MAINPORT SEISMIC SUPPORT LIMITED.
What is MAINPORT SEISMIC SUPPORT LIMITED's company registration number?
MAINPORT SEISMIC SUPPORT LIMITED's registration number is IE663933, filed with Companies Registration Office (CRO) in Ireland. Its current status on the register is active.
Is MAINPORT SEISMIC SUPPORT LIMITED still an active company?
MAINPORT SEISMIC SUPPORT LIMITED's status on Companies Registration Office (CRO) is listed as active.
When was MAINPORT SEISMIC SUPPORT LIMITED incorporated?
MAINPORT SEISMIC SUPPORT LIMITED was incorporated on 10 January 2020, according to Companies Registration Office (CRO).
What is MAINPORT SEISMIC SUPPORT LIMITED's registered address?
The registered address on file for MAINPORT SEISMIC SUPPORT LIMITED is CORK T12 AH9T, Ireland.
What legal structure is MAINPORT SEISMIC SUPPORT LIMITED registered as?
MAINPORT SEISMIC SUPPORT LIMITED is registered as a Private limited company (Ltd.) in Ireland.
Does MAINPORT SEISMIC SUPPORT LIMITED have a parent company or subsidiaries?
MAINPORT SEISMIC SUPPORT LIMITED sits 3 levels below its ultimate parent, SUCCESSO LIMITED, registered in Ireland.
Can Zavia monitor changes to MAINPORT SEISMIC SUPPORT LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies Registration Office (CRO). Zavia's monitoring API can track changes to MAINPORT SEISMIC SUPPORT LIMITED's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access MAINPORT SEISMIC SUPPORT LIMITED's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Ireland, so records like MAINPORT SEISMIC SUPPORT LIMITED's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Companies Registration Office (CRO) and was last synced on 22 October 2026.