duotec GmbH
duotec GmbH is a Private limited company (Ltd.) registered in Germany under HRB 5004 Iserlohn, and its current status with Handelsregister (Commercial Register) is active. The company was incorporated on 22 December 1988 and lists its registered address as Halver, Germany. 5 shareholders are on record for duotec GmbH, 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 Handelsregister (Commercial Register) and was last updated on 24 September 2026.
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Shareholders
5
Shareholders of duotec GmbH
Five shareholders are currently on record for duotec GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Turck & Hahn Consulting GmbH, holding 28.8% — the largest recorded stake — followed by Turck & Hahn Consulting GmbH at 20%; 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.
Data availability
The register reports 8 shareholders in total, though only the top 5 by holding are shown in this view.
Officers
3
Directors and officers of duotec GmbH
Three officers are currently on record for duotec GmbH, filed with Handelsregister (Commercial Register). Arthur Rönisch and Christoph Brameier both serve as Geschäftsführer (managing director); Johannes Karl Bernhard Schaefer serves as Officer. Management authority at duotec GmbH 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.
Group Structure
Group structure of duotec GmbH
duotec GmbH sits 1 level below its ultimate parent, Turck & Hahn Consulting GmbH, registered in Germany. 2 subsidiaries are recorded beneath it, across 2 jurisdictions. Immediately above duotec GmbH is Turck & Hahn Consulting GmbH, holding 72.6% as filed in duotec GmbH's own shareholder record with Handelsregister (Commercial Register). 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.
- ml&s Suisse SA (Switzerland)
- ml&s Holding SA (Switzerland)
Data availability
Those 2 subsidiaries span Germany, Switzerland 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 2 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
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Frequently Asked Questions
Who owns duotec GmbH?
Five shareholders are currently on record for duotec GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Turck & Hahn Consulting GmbH, holding 28.8% — the largest recorded stake — followed by Turck & Hahn Consulting GmbH at 20%; 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 duotec GmbH's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for duotec GmbH 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 duotec GmbH have on record?
5 shareholders are shown on record for duotec GmbH. The register reports 8 in total; only the top 5 by holding are shown here.
What is duotec GmbH's company registration number?
duotec GmbH's registration number is HRB 5004 Iserlohn, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is duotec GmbH still an active company?
duotec GmbH's status on Handelsregister (Commercial Register) is listed as active.
When was duotec GmbH incorporated?
duotec GmbH was incorporated on 22 December 1988, according to Handelsregister (Commercial Register).
What is duotec GmbH's registered address?
The registered address on file for duotec GmbH is Halver, Germany.
What legal structure is duotec GmbH registered as?
duotec GmbH is registered as a Private limited company (Ltd.) in Germany.
Who are the officers/directors of duotec GmbH?
Three officers are currently on record for duotec GmbH, filed with Handelsregister (Commercial Register). Arthur Rönisch and Christoph Brameier both serve as Geschäftsführer (managing director); Johannes Karl Bernhard Schaefer serves as Officer. Management authority at duotec GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does duotec GmbH have a parent company or subsidiaries?
duotec GmbH sits 1 level below its ultimate parent, Turck & Hahn Consulting GmbH, registered in Germany. 2 subsidiaries are recorded beneath it, across 2 jurisdictions. Those 2 subsidiaries span Germany, Switzerland 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 2 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 duotec GmbH's ownership over time?
This profile reflects a point-in-time snapshot from Handelsregister (Commercial Register). Zavia's monitoring API can track changes to duotec GmbH's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access duotec GmbH'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 duotec GmbH'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 24 September 2026.