- Overview
- Braunschweig
- Marten Siebke
Lawyer profile
Marten Siebke
Insolvency and restructuring law (Fachanwalt für Insolvenz- und Sanierungsrecht), Kosswig Rechtsanwälte, Braunschweig
- Checked in the official register of the German Federal Bar (BRAK) on 21 October 2026
- Overall rating 4.3 of 5
, from 46 reviews of the firm
At a glance
- Languages
- English, Spanish
- Focus areas
- Arbeitsrecht, Ehe- und Familienrecht, Insolvenzrecht, Maklerrecht, Wirtschaftsstrafrecht, Bau- und Immobilienrecht, Erbrecht, Familienrecht, Verkehrsrecht, Jagdrecht, Medizinrecht, Baurecht
- Opening hours
- Montag bis Donnerstag: 8 bis 13 Uhr und 14 bis 17 Uhr
- Freitag: 8 bis 13 Uhr
Sources: the firm's website, retrieved on 24 October 2026; Deutsche Anwaltauskunft des Deutschen Anwaltvereins, retrieved on 12 October 2026. Focus areas and opening hours are the lawyer's or firm's own words.
Reviews of the firm
4.3 of 5 Overall rating from 46 reviews on 2 platforms. How we calculate the overall rating
| Platform | Rating | Reviews | As of |
|---|---|---|---|
| Das Örtliche | 5.0 of 5 | 1 | 21 October 2026 |
| 4.3 of 5 | 45 | 22 October 2026 |
These reviews apply to the firm, not to individual lawyers.
Details from the official lawyer register
- Name
- Marten Siebke
- Professional title
- Lawyer and civil-law notary (Rechtsanwalt Notar)
- Fachanwalt titles
- Insolvency and restructuring law (Fachanwalt für Insolvenz- und Sanierungsrecht)
- Regional bar association
- Braunschweig
- Admitted since
- 31 March 2010
- First admission
- 24 March 2010
- Law firm
- Kosswig Rechtsanwälte
- Firm address
- Zuckerbergweg 1, 38124 Braunschweig
- siebke@kosswig.com
- Website
- www.kosswig.com
- Identifier in the special electronic lawyer mailbox (beA)
- DE.BRAK.9a5fa004-258b-4d32-8965-7c9e6417ddfd.6b30
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.
Other lawyers at this firm
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