- Overview
- Düsseldorf
- André Siedenberg
Lawyer profile
André Siedenberg
Public procurement law (Fachanwalt für Vergaberecht), Düsseldorf
- Checked in the official register of the German Federal Bar (BRAK) on 13 October 2026
At a glance
- Focus areas
- Vergaberecht
- Opening hours
- Montag 09:00 bis 17:00
- Dienstag 09:00 bis 17:00
- Mittwoch 09:00 bis 17:00
- Donnerstag 09:00 bis 17:00
- Freitag 09:00 bis 17:00
- Samstag geschlossen
- Sonntag geschlossen
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.
Location of the firm
Details from the official lawyer register
- Name
- André Siedenberg
- Professional title
- Lawyer (Rechtsanwalt)
- Fachanwalt titles
- 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
- 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.
Something wrong? Request a correction. We change details from the official register only when they have changed there.