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DECIPHEX LIMITED

Private limited company (Ltd.) Active

in

Registration No.
IE600431
Incorporation Date
2017-03-15
Company Type
Private limited company (Ltd.)
Address
Ireland
Website
www.deciphex.com/
Source: Companies Registration Office (CRO)

DECIPHEX LIMITED is a Private limited company (Ltd.) registered in Ireland under IE600431, and its current status with Companies Registration Office (CRO) is active. The company was incorporated on 15 March 2017 and lists its registered address as Ireland. 5 shareholders are on record for DECIPHEX 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 30 September 2026.

Data Provenance
This record is sourced directly from official government registries, including Companies Registration Office (CRO).

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Shareholders

5

Five shareholders are currently on record for DECIPHEX LIMITED, held on the Annual Return (Form B1), filed under section 342 of the Companies Act 2014.

The largest of these is SEROBA LIFE SCIENCES (GP IV) LIMITED, holding 56.4% — a majority holding — followed by IRRUS INVESTMENTS NOMINEE LIMITED at 26.9%; the remaining 3 shareholders shown hold smaller stakes.

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
SEROBA LIFE SCIENCES (GP IV) LIMITED 56.4% Companies Registration Office (CRO)
IRRUS INVESTMENTS NOMINEE LIMITED 26.9% Companies Registration Office (CRO)
DECIPHEX NOMINEES LIMITED 12.4% Companies Registration Office (CRO)
HBAN MEDTECH SYNDICATE NOMINEE LIMITED 4.2% Companies Registration Office (CRO)
ACT V PHC CO-INVESTMENT LIMITED PARTNERSHIP 0.1% Companies Registration Office (CRO)

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Officers

5

The Director of DECIPHEX LIMITED currently on record is MARK GREGSON; five officers are currently on record for DECIPHEX LIMITED, filed with Companies Registration Office (CRO).

The register reports 6 officers in total, including past appointments, though only the 5 most relevant records are shown here.

Management authority at DECIPHEX LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.

The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.

MG
MARK GREGSON ACTIVE

Appointed
2017-03-15
Residence
🇬🇧 United Kingdom
Occupation
Director

DO
DONAL O’SHEA ACTIVE

Appointed
2017-03-15
Residence
🇮🇪 Ireland
Occupation
Director

JO
John O'Sullivan ACTIVE

Appointed
2022-05-11
Residence
🇮🇪 Ireland
Occupation
Director

MR
Mairin Rafferty ACTIVE

Residence
🇮🇪 Ireland
Occupation
Founder

MR
MAIRIN RAFFERTY ACTIVE

Appointed
2018-01-15
Residence
🇮🇪 Ireland
Occupation
Company Secretary

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Group Structure

DECIPHEX LIMITED sits 1 level below its ultimate parent, DECIPHEX HOLDINGS LIMITED, registered in Ireland. 1 subsidiary is recorded beneath it, across 2 jurisdictions. The full chain up to DECIPHEX HOLDINGS LIMITED is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by DECIPHEX LIMITED's own shareholder record. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.

Those 1 subsidiary spans Ireland, United Kingdom jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.

Ultimate HQ
DECIPHEX HOLDINGS LIMITED
Ireland
DIAGNEXIA UK LIMITED
United KingdomGB 13236796

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Frequently Asked Questions

Who owns DECIPHEX LIMITED?

Five shareholders are currently on record for DECIPHEX LIMITED, held on the Annual Return (Form B1), filed under section 342 of the Companies Act 2014. The largest of these is SEROBA LIFE SCIENCES (GP IV) LIMITED, holding 56.4% — a majority holding — followed by IRRUS INVESTMENTS NOMINEE LIMITED at 26.9%; the remaining 3 shareholders shown hold smaller stakes. 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 DECIPHEX LIMITED's UBO (Ultimate Beneficial Owner)?

Every shareholder recorded for DECIPHEX 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 DECIPHEX LIMITED have on record?

5 shareholders are shown on record for DECIPHEX LIMITED.

What is DECIPHEX LIMITED's company registration number?

DECIPHEX LIMITED's registration number is IE600431, filed with Companies Registration Office (CRO) in Ireland. Its current status on the register is active.

Is DECIPHEX LIMITED still an active company?

DECIPHEX LIMITED's status on Companies Registration Office (CRO) is listed as active.

When was DECIPHEX LIMITED incorporated?

DECIPHEX LIMITED was incorporated on 15 March 2017, according to Companies Registration Office (CRO).

What is DECIPHEX LIMITED's registered address?

The registered address on file for DECIPHEX LIMITED is Ireland.

What legal structure is DECIPHEX LIMITED registered as?

DECIPHEX LIMITED is registered as a Private limited company (Ltd.) in Ireland.

Who are the officers/directors of DECIPHEX LIMITED?

The Director of DECIPHEX LIMITED currently on record is MARK GREGSON; five officers are currently on record for DECIPHEX LIMITED, filed with Companies Registration Office (CRO). Management authority at DECIPHEX LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.

Does DECIPHEX LIMITED have a parent company or subsidiaries?

DECIPHEX LIMITED sits 1 level below its ultimate parent, DECIPHEX HOLDINGS LIMITED, registered in Ireland. 1 subsidiary is recorded beneath it, across 2 jurisdictions. Those 1 subsidiary spans Ireland, United Kingdom jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.

Can Zavia monitor changes to DECIPHEX 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 DECIPHEX 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 DECIPHEX 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 DECIPHEX 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 30 September 2026.

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