BAU – REIN Rostock GmbH
BAU – REIN Rostock GmbH is a Private limited company (Ltd.) registered in Germany under HRB 3930 Rostock, and its current status with Handelsregister (Commercial Register) is active. Its registered address on file is Rostock, Germany. 5 shareholders are on record for BAU – REIN Rostock GmbH, including at least one natural person recorded as a direct holder; the filing carries no beneficial-ownership flag, so that holder is noted here as a recorded shareholder rather than a confirmed ultimate beneficial owner (UBO). This profile is sourced directly from Handelsregister (Commercial Register) and was last updated on 21 October 2026.
- Company fundamentals
- Corporate linkage & group structures
- Digitized company financials
- Firmographics — websites, social profiles, revenue and employee estimates
Shareholders
5
Five shareholders are currently on record for BAU – REIN Rostock GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is Heiko Middelhuß, holding 16% — the largest recorded stake — followed by Dirk Burkhard at 15%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 8 shareholders in total, though only the top 5 by holding are shown in this view.
Every shareholder shown is an individual, recorded as a direct holder at this level; the record carries no UBO/PSC flag, so beneficial-owner status is not confirmed here.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Heiko Middelhuß | 16% | Handelsregister (Commercial Register) | |
| Dirk Burkhard | 15% | Handelsregister (Commercial Register) | |
| Birgit Neumann | 13% | Handelsregister (Commercial Register) | |
| Elke Burkhard | 10% | Handelsregister (Commercial Register) | |
| Heiko Middelhuß | 10% | Handelsregister (Commercial Register) |
Officers
4
One of the 4 officer records shown for BAU – REIN Rostock GmbH is a current appointment, filed with Handelsregister (Commercial Register). Heiko Middelhuß serves as Geschäftsführer (managing director). The remaining 1 record shown (Herbert Middelhuß) is a former appointment that has since been resigned.
Management authority at BAU – REIN Rostock 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
BAU – REIN Rostock GmbH has no recorded parent company — it sits at the top of its own group structure, with 6 subsidiaries recorded beneath it across 1 jurisdiction. 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 6 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.
BAU – REIN Rostock GmbH
Germany
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring.
Frequently Asked Questions
Who owns BAU – REIN Rostock GmbH?
Five shareholders are currently on record for BAU – REIN Rostock GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Heiko Middelhuß, holding 16% — the largest recorded stake — followed by Dirk Burkhard at 15%; the remaining 3 shareholders shown hold smaller stakes. Every shareholder shown is an individual, recorded as a direct holder at this level; the record carries no UBO/PSC flag, so beneficial-owner status is not confirmed here.
Who is BAU – REIN Rostock GmbH's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for BAU – REIN Rostock GmbH is a natural person. The record carries no dedicated UBO/PSC flag, so that holder is stated here as a recorded shareholder rather than a confirmed Ultimate Beneficial Owner (UBO).
How many shareholders does BAU – REIN Rostock GmbH have on record?
5 shareholders are shown on record for BAU – REIN Rostock GmbH. The register reports 8 in total; only the top 5 by holding are shown here.
What is BAU – REIN Rostock GmbH's company registration number?
BAU – REIN Rostock GmbH's registration number is HRB 3930 Rostock, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is BAU – REIN Rostock GmbH still an active company?
BAU – REIN Rostock GmbH's status on Handelsregister (Commercial Register) is listed as active.
What is BAU – REIN Rostock GmbH's registered address?
The registered address on file for BAU – REIN Rostock GmbH is Rostock, Germany.
Who are the officers/directors of BAU – REIN Rostock GmbH?
One of the 4 officer records shown for BAU – REIN Rostock GmbH is a current appointment, filed with Handelsregister (Commercial Register). Heiko Middelhuß serves as Geschäftsführer (managing director). The remaining 1 record shown (Herbert Middelhuß) is a former appointment that has since been resigned. Management authority at BAU – REIN Rostock GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does BAU – REIN Rostock GmbH have a parent company or subsidiaries?
BAU – REIN Rostock GmbH has no recorded parent company — it sits at the top of its own group structure, with 6 subsidiaries recorded beneath it across 1 jurisdiction. Those 6 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.
Can Zavia monitor changes to BAU – REIN Rostock 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 BAU – REIN Rostock 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 BAU – REIN Rostock 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 BAU – REIN Rostock 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 21 October 2026.