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Lawyer profile

André Siedenberg

Certified specialist in public procurement law (Fachanwalt für Vergaberecht), Düsseldorf

  • Checked in the official register of the German Federal Bar (BRAK) on 13 October 2026

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At a glance

Focus areas
Public procurement law (Vergaberecht)
Opening hours
  • Monday 09:00 to 17:00
  • Tuesday 09:00 to 17:00
  • Wednesday 09:00 to 17:00
  • Thursday 09:00 to 17:00
  • Friday 09:00 to 17:00
  • Saturday closed
  • Sunday closed

Sources: the firm's website, retrieved on 24 October 2026; Google, retrieved on 24 October 2026. Focus areas and opening hours are the lawyer's or firm's own words. Focus areas from the directories' fixed lists have an English label with the German term in brackets; all others stay in German.

Location of the firm

Map of the area around Konkordiastr. 105, 40219 Düsseldorf
Konkordiastr. 105, 40219 Düsseldorf. Map: © OpenStreetMap contributors

Details from the official lawyer register

Name
André Siedenberg
Professional title
Lawyer (Rechtsanwalt)
Specialist titles
Certified specialist in public procurement law (Fachanwalt für Vergaberecht)
Regional bar association
Düsseldorf
Admitted since
7 August 2015
Law firm
André Siedenberg
Firm address
Konkordiastr. 105, 40219 Düsseldorf
Phone
0211-43077275
Mobile phone
0176-22730479
Fax
0211-43077279
E-mail
siedenberg@ra-siedenberg.de
Identifier in the special electronic lawyer mailbox (beA)
DE.BRAK.27c74383-2c84-4bf4-b80b-cc92113aaa62.ed5f

Source: Official lawyer register of the German Federal Bar under section 31 of the Federal Lawyers' Act (BRAO). The register is kept in German. We show names and addresses as the register gives them and add an English description to German professional titles.

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