OAT GmbH
OAT GmbH is a Private limited company (Ltd.) registered in Germany under HRB 521289 Mannheim, and its current status with Handelsregister (Commercial Register) is active. The company was incorporated on 22 September 1977 and lists its registered address as Bietigheim, Germany. 4 shareholders are on record for OAT 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 22 October 2026.
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Shareholders
4
Four shareholders are currently on record for OAT GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is AT Beteiligungs GmbH & Co. KG, holding 57% — a majority holding — followed by AT Beteiligungs GmbH & Co. KG at 25%; the remaining 2 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 |
|---|---|---|---|
| AT Beteiligungs GmbH & Co. KG | 57% | Handelsregister (Commercial Register) | |
| AT Beteiligungs GmbH & Co. KG | 25% | Handelsregister (Commercial Register) |
Officers
4
Three of the 4 officer records shown for OAT GmbH are current appointments, filed with Handelsregister (Commercial Register). Ralf Alte-Teigeler, Nina Alte-Teigeler and Marko Wieland all serve as Geschäftsführer (managing director). The record also shows 1 earlier, since-resigned appointment held by an officer who currently serves.
Management authority at OAT 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
OAT GmbH sits 1 level below its ultimate parent, AT Beteiligungs GmbH & Co. KG, registered in Germany. 4 subsidiaries are recorded beneath it, across 1 jurisdiction. Immediately above OAT GmbH is AT Beteiligungs GmbH & Co. KG, holding 100% as filed in OAT 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.
Those 4 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. Three of the 4 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
AT Beteiligungs GmbH & Co. KG
Germany
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Frequently Asked Questions
Who owns OAT GmbH?
Four shareholders are currently on record for OAT GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is AT Beteiligungs GmbH & Co. KG, holding 57% — a majority holding — followed by AT Beteiligungs GmbH & Co. KG at 25%; the remaining 2 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 OAT GmbH's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for OAT 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 OAT GmbH have on record?
4 shareholders are shown on record for OAT GmbH.
What is OAT GmbH's company registration number?
OAT GmbH's registration number is HRB 521289 Mannheim, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is OAT GmbH still an active company?
OAT GmbH's status on Handelsregister (Commercial Register) is listed as active.
When was OAT GmbH incorporated?
OAT GmbH was incorporated on 22 September 1977, according to Handelsregister (Commercial Register).
What is OAT GmbH's registered address?
The registered address on file for OAT GmbH is Bietigheim, Germany.
Who are the officers/directors of OAT GmbH?
Three of the 4 officer records shown for OAT GmbH are current appointments, filed with Handelsregister (Commercial Register). Ralf Alte-Teigeler, Nina Alte-Teigeler and Marko Wieland all serve as Geschäftsführer (managing director). The record also shows 1 earlier, since-resigned appointment held by an officer who currently serves. Management authority at OAT GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does OAT GmbH have a parent company or subsidiaries?
OAT GmbH sits 1 level below its ultimate parent, AT Beteiligungs GmbH & Co. KG, registered in Germany. 4 subsidiaries are recorded beneath it, across 1 jurisdiction. Those 4 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. Three of the 4 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 OAT 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 OAT 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 OAT 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 OAT 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 22 October 2026.