MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY is a Private limited company (Ltd.) registered in Ireland under IE295335, and its current status with Companies Registration Office (CRO) is active. The company was incorporated on 23 October 1998 and lists its registered address as SHANNON CO. CLARE., Ireland. 1 shareholder is on record for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY, 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 29 September 2026.
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Shareholders
1
Shareholders of MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY
One shareholder is currently on record for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY, held on the Annual Return (Form B1), filed under section 342 of the Companies Act 2014. The largest of these is SIEMENS BETEILIGUNGEN EUROPA GMBH, holding 100% — a majority holding. Because the 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.
Data-provider feed — rows as supplied to Zavia for Companies Registration Office (CRO), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| SIEMENS BETEILIGUNGEN EUROPA GMBH | 100% | Companies Registration Office (CRO) |
Officers
5
Directors and officers of MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY
One of the 5 officer records shown for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY is a current appointment, filed with Companies Registration Office (CRO). JOHN BOLGER (appointed 2022-11-22) serves as Director. The remaining 4 records shown (ETHAN ALLEN MANUEL, LELAND DON MAULSBY and 2 others) are former appointments that have since been resigned. Management authority at MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY 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.
Data availability
The register reports 17 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Data-provider feed — rows as supplied to Zavia for Companies Registration Office (CRO), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Group Structure
Group structure of MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY sits 1 level below its ultimate parent, Siemens AG, registered in Germany. 3 subsidiaries are recorded beneath it, across 3 jurisdictions. The full chain up to Siemens AG is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY'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.
- Siemens Electronic Design Automation (Shanghai) Co., Ltd. (China)
- SIEMENS INDUSTRY SOFTWARE LIMITED (Ireland)
- SIEMENS ELECTRONIC DESIGN AUTOMATION PTE. LTD. (Singapore)
Data availability
Those 3 subsidiaries span Ireland, China, Singapore 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. One of the 3 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Data-provider feed — rows as supplied to Zavia for Companies Registration Office (CRO), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Siemens AG
Germany
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Frequently Asked Questions
Who owns MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY?
One shareholder is currently on record for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY, held on the Annual Return (Form B1), filed under section 342 of the Companies Act 2014. The largest of these is SIEMENS BETEILIGUNGEN EUROPA GMBH, holding 100% — a majority holding. Because the 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 MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY 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 MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY have on record?
1 shareholder is shown on record for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY.
What is MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY's company registration number?
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY's registration number is IE295335, filed with Companies Registration Office (CRO) in Ireland. Its current status on the register is active.
Is MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY still an active company?
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY's status on Companies Registration Office (CRO) is listed as active.
When was MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY incorporated?
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY was incorporated on 23 October 1998, according to Companies Registration Office (CRO).
What is MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY's registered address?
The registered address on file for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY is SHANNON CO. CLARE., Ireland.
What legal structure is MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY registered as?
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY is registered as a Private limited company (Ltd.) in Ireland.
Who are the officers/directors of MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY?
One of the 5 officer records shown for MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY is a current appointment, filed with Companies Registration Office (CRO). JOHN BOLGER (appointed 2022-11-22) serves as Director. The remaining 4 records shown (ETHAN ALLEN MANUEL, LELAND DON MAULSBY and 2 others) are former appointments that have since been resigned. Management authority at MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY have a parent company or subsidiaries?
MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY sits 1 level below its ultimate parent, Siemens AG, registered in Germany. 3 subsidiaries are recorded beneath it, across 3 jurisdictions. Those 3 subsidiaries span Ireland, China, Singapore 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. One of the 3 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY'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 MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY'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 MENTOR GRAPHICS (HOLDINGS) UNLIMITED COMPANY'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 29 September 2026.