DIADUR SE
DIADUR SE is a registered legal entity registered in Germany under HRB 25652 Traunstein, and its current status with Handelsregister (Commercial Register) is active. Its registered address on file is Traunreut, Germany. No shareholders are recorded for DIADUR SE; ownership in this jurisdiction is normally filed as the Gesellschafterliste (shareholder list) under §40 of the GmbHG, but no such filing is on record here. No beneficial owner record is shown for DIADUR SE, as access to the German Transparenzregister is restricted to obliged entities and legitimate-interest applicants following the November 2022 CJEU ruling. This profile is sourced directly from Handelsregister (Commercial Register) and was last updated on 1 October 2026.
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Officers
3
Directors and officers of DIADUR SE
Two of the 3 officer records shown for DIADUR SE are current appointments, filed with Handelsregister (Commercial Register). Johannes Mayer (appointed 2023-07-02) and Thomas Sesselmann (appointed 2023-07-02) both serve as Member Of The Management Body. The record also shows 1 earlier, since-resigned appointment held by an officer who currently serves. 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-provider feed — rows as supplied to Zavia for Handelsregister (Commercial Register), 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 DIADUR SE
DIADUR SE sits 1 level below its ultimate parent, DR. JOHANNES HEIDENHAIN-STIFTUNG GmbH, registered in Germany. 2 subsidiaries are recorded beneath it, across 1 jurisdiction. The full chain up to DR. JOHANNES HEIDENHAIN-STIFTUNG GmbH is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by DIADUR SE'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.
- DR. JOHANNES HEIDENHAIN GmbH (Germany)
- MD ELEKTRONIK GmbH (Germany)
Data availability
Those 2 subsidiaries span Germany jurisdiction, 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. Two of the 2 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Data-provider feed — rows as supplied to Zavia for Handelsregister (Commercial Register), 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.
DR. JOHANNES HEIDENHAIN-STIFTUNG GmbH
Germany
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Frequently Asked Questions
Who is DIADUR SE's UBO (Ultimate Beneficial Owner)?
No Ultimate Beneficial Owner (UBO) record is shown for DIADUR SE, as access to the German Transparenzregister is restricted to obliged entities and legitimate-interest applicants following the November 2022 CJEU ruling.
What is DIADUR SE's company registration number?
DIADUR SE's registration number is HRB 25652 Traunstein, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is DIADUR SE still an active company?
DIADUR SE's status on Handelsregister (Commercial Register) is listed as active.
What is DIADUR SE's registered address?
The registered address on file for DIADUR SE is Traunreut, Germany.
Who are the officers/directors of DIADUR SE?
Two of the 3 officer records shown for DIADUR SE are current appointments, filed with Handelsregister (Commercial Register). Johannes Mayer (appointed 2023-07-02) and Thomas Sesselmann (appointed 2023-07-02) both serve as Member Of The Management Body. The record also shows 1 earlier, since-resigned appointment held by an officer who currently serves.
Does DIADUR SE have a parent company or subsidiaries?
DIADUR SE sits 1 level below its ultimate parent, DR. JOHANNES HEIDENHAIN-STIFTUNG GmbH, registered in Germany. 2 subsidiaries are recorded beneath it, across 1 jurisdiction. Those 2 subsidiaries span Germany jurisdiction, 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. Two of the 2 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to DIADUR SE's ownership over time?
This profile reflects a point-in-time snapshot from Handelsregister (Commercial Register). Zavia's monitoring API can track changes to DIADUR SE's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access DIADUR SE's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Germany, so records like DIADUR SE'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 Handelsregister (Commercial Register) and was last synced on 1 October 2026.