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Company registry profile

TAG Colonia-Immobilien AG

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TAG Colonia-Immobilien AG is a registered legal entity registered in Germany under HRB 123858 Hamburg, and its current status with Handelsregister (Commercial Register) is active. The company was incorporated on 25 October 1902 and lists its registered address as Hamburg, Germany. No shareholders are recorded for TAG Colonia-Immobilien AG; 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 TAG Colonia-Immobilien AG, 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 25 September 2026.

From the registry

Registration details

Registration No.
HRB 123858 Hamburg
Incorporation Date
1902-10-25
Company Type
Not disclosed
Address
Hamburg, Germany
Website
www.colonia.ag/
Source: Handelsregister (Commercial Register)Registry coverage

Officers

46

Directors and officers of TAG Colonia-Immobilien AG

The Aufsichtsratsmitglied (board member) of TAG Colonia-Immobilien AG currently on record is Claudia Hoyer; eight of the 46 officer records shown for TAG Colonia-Immobilien AG are current appointments, filed with Handelsregister (Commercial Register). The remaining 37 records shown (Martin Thiel Cpa, Reinhard Assessor Jammers and 35 others) are former appointments that have since been resigned. 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.

CH
Claudia Hoyer ACTIVE

Appointed
2014-03-10
Residence
🇩🇪 Germany
Occupation
Aufsichtsratsmitglied (board member)

MW
Martin Werner Thiel ACTIVE

Appointed
2014-10-01
Residence
🇩🇪 Germany
Occupation
Aufsichtsratsmitglied (board member)

SN
Stephan Nasarow ACTIVE

Appointed
2015-10-01
Residence
🇩🇪 Germany
Occupation
Officer

MW
Marcel Wiebach ACTIVE

Appointed
2020-08-18
Residence
🇩🇪 Germany
Occupation
Officer

CO
Claudius Oleszak ACTIVE

Residence
🇩🇪 Germany
Occupation
Officer

US
Undine Seefeldt ACTIVE

Residence
🇩🇪 Germany
Occupation
Officer

AH
Albrecht Hempel ACTIVE

Residence
🇩🇪 Germany
Occupation
Officer

UH
Ulrike Helen Isenberg ACTIVE

Residence
🇩🇪 Germany
Occupation
Officer

MT
Martin Thiel Cpa RESIGNED

Residence
🇩🇪 Germany
Occupation
Co-ceo, Cfo & Member Of The Management Board

RA
Reinhard Assessor Jammers RESIGNED

Appointed
2002-04-05
Resigned
2003-01-28
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

GK
Gerd Kath RESIGNED

Appointed
2002-04-05
Resigned
2003-01-28
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

RR
Rainer Ragert RESIGNED

Appointed
2002-04-05
Resigned
2003-10-06
Residence
🇩🇪 Germany
Occupation
Officer

KH
Karl Heinz Koepke RESIGNED

Appointed
2002-04-05
Resigned
2003-10-06
Residence
🇩🇪 Germany
Occupation
Officer

BW
Bernd Wohrenkämper RESIGNED

Appointed
2002-04-05
Resigned
2003-10-06
Residence
🇩🇪 Germany
Occupation
Officer

PG
Paul-Hans Gandrass RESIGNED

Appointed
2002-04-05
Resigned
2004-10-28
Residence
🇩🇪 Germany
Occupation
Officer

MK
Manfred Krick RESIGNED

Appointed
2002-04-05
Resigned
2004-10-28
Residence
🇩🇪 Germany
Occupation
Officer

WH
Wilhelm Hankel RESIGNED

Appointed
2003-01-28
Resigned
2003-04-15
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

FB
Frank Beck RESIGNED

Appointed
2003-01-28
Resigned
2003-04-15
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

CH
Christian Hermann Grosch RESIGNED

Appointed
2003-04-15
Resigned
2006-04-28
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

SR
Stephan Rind RESIGNED

Appointed
2003-04-15
Resigned
2011-03-23
Residence
🇨🇭 Switzerland
Occupation
Member Of The Executive Board

KR
Klaus Reichert RESIGNED

Appointed
2004-09-03
Resigned
2008-05-16
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

MD
Markus Drews RESIGNED

Appointed
2004-10-28
Resigned
2011-04-14
Residence
🇩🇪 Germany
Occupation
Officer

KB
Kerstin Bauereiss RESIGNED

Appointed
2006-03-16
Resigned
2007-05-22
Residence
🇩🇪 Germany
Occupation
Officer

HT
Harald Twardy RESIGNED

Appointed
2006-03-16
Resigned
2009-03-04
Residence
🇩🇪 Germany
Occupation
Officer

EK
Edgar Krauss RESIGNED

Appointed
2006-04-28
Resigned
2006-06-21
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

CW
Christoph Wittkop RESIGNED

Appointed
2007-08-23
Resigned
2008-09-25
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

CD
Christoph Daniel Kauter RESIGNED

Appointed
2007-10-16
Resigned
2009-03-04
Residence
🇩🇪 Germany
Occupation
Officer

IS
Ingmar Schmitt RESIGNED

Appointed
2008-05-16
Resigned
2008-09-25
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

CN
Christoph Nicolay Siedler RESIGNED

Appointed
2008-05-16
Resigned
2011-07-06
Residence
🇩🇪 Germany
Occupation
Officer

MB
Markus Blaeser RESIGNED

Appointed
2008-06-19
Resigned
2011-04-14
Residence
🇩🇪 Germany
Occupation
Officer

FJ
Friedrich Jürgen Thiele RESIGNED

Appointed
2008-09-25
Resigned
2010-06-01
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

VL
Volker Lemke RESIGNED

Appointed
2008-09-25
Resigned
2011-04-14
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

CK
Claudia Kellert RESIGNED

Appointed
2010-11-11
Resigned
2011-04-14
Residence
🇩🇪 Germany
Occupation
Officer

PK
Patrick Kaiser RESIGNED

Appointed
2010-11-11
Resigned
2011-07-06
Residence
🇩🇪 Germany
Occupation
Officer

HO
Hans-Ulrich Otto Wilhelm Sutter RESIGNED

Appointed
2011-02-21
Resigned
2012-06-08
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

RE
Rolf Elgeti RESIGNED

Appointed
2011-02-21
Resigned
2014-11-07
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

ID
Imke Dombrowski RESIGNED

Appointed
2011-04-14
Resigned
2012-07-10
Residence
🇩🇪 Germany
Occupation
Officer

UV
Undine Viviane Seefeldt RESIGNED

Appointed
2012-04-04
Residence
🇩🇪 Germany
Occupation
Officer

KT
Karin Tarantino RESIGNED

Appointed
2012-04-04
Resigned
2015-10-01
Residence
🇩🇪 Germany
Occupation
Officer

GK
Georg Karl Eberhard Griesemann RESIGNED

Appointed
2012-05-18
Resigned
2014-04-15
Residence
🇩🇪 Germany
Occupation
Member Of The Executive Board

HK
Harald Kintzel RESIGNED

Appointed
2018-03-01
Residence
🇩🇪 Germany
Occupation
Officer

MH
Monika Hocke RESIGNED

Appointed
2019-02-15
Residence
🇩🇪 Germany
Occupation
Officer

UH
Ulrike Helen Bondkirch RESIGNED

Appointed
2021-08-26
Residence
🇩🇪 Germany
Occupation
Officer

CH
Claudia Hoyer RESIGNED

Residence
🇩🇪 Germany
Occupation
Aufsichtsratsmitglied (board member)

DM
Dominique Mann RESIGNED

Residence
🇩🇪 Germany
Occupation
Head Of Investor & Public Relations

MT
Martin Thiel RESIGNED

Residence
🇩🇪 Germany
Occupation
Aufsichtsratsmitglied (board member)

Group Structure

Group structure of TAG Colonia-Immobilien AG

TAG Colonia-Immobilien AG has no recorded parent company — it sits at the top of its own group structure, with 3 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.

  • TAG Grasmus Immobilien GmbH (Germany)
  • Colonia Wohnen GmbH (Germany)
  • Colonia Immobilien Verwaltung GmbH (Germany)

Data availability

Those 3 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. 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.

Top of recorded group
TAG Colonia-Immobilien AG
Germany
TAG Grasmus Immobilien GmbH
GermanyDE 20355B139481

Colonia Wohnen GmbH+ subsidiaries
GermanyDE 20355B124439

Colonia Immobilien Verwaltung GmbH
GermanyDE 20355B124442

Registry questions

Frequently asked questions

Who is TAG Colonia-Immobilien AG's UBO (Ultimate Beneficial Owner)?

No Ultimate Beneficial Owner (UBO) record is shown for TAG Colonia-Immobilien AG, as access to the German Transparenzregister is restricted to obliged entities and legitimate-interest applicants following the November 2022 CJEU ruling.

What is TAG Colonia-Immobilien AG's company registration number?

TAG Colonia-Immobilien AG's registration number is HRB 123858 Hamburg, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.

Is TAG Colonia-Immobilien AG still an active company?

TAG Colonia-Immobilien AG's status on Handelsregister (Commercial Register) is listed as active.

When was TAG Colonia-Immobilien AG incorporated?

TAG Colonia-Immobilien AG was incorporated on 25 October 1902, according to Handelsregister (Commercial Register).

What is TAG Colonia-Immobilien AG's registered address?

The registered address on file for TAG Colonia-Immobilien AG is Hamburg, Germany.

Who are the officers/directors of TAG Colonia-Immobilien AG?

The Aufsichtsratsmitglied (board member) of TAG Colonia-Immobilien AG currently on record is Claudia Hoyer; eight of the 46 officer records shown for TAG Colonia-Immobilien AG are current appointments, filed with Handelsregister (Commercial Register). The remaining 37 records shown (Martin Thiel Cpa, Reinhard Assessor Jammers and 35 others) are former appointments that have since been resigned.

Does TAG Colonia-Immobilien AG have a parent company or subsidiaries?

TAG Colonia-Immobilien AG has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 1 jurisdiction. Those 3 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. 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 TAG Colonia-Immobilien AG's ownership over time?

This profile reflects a point-in-time snapshot from Handelsregister (Commercial Register). Zavia's monitoring API can track changes to TAG Colonia-Immobilien AG's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.

Can I access TAG Colonia-Immobilien AG'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 TAG Colonia-Immobilien AG'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 25 September 2026.

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