Home / People / Martika Jonk

Martika Jonk


Atrium - Parnassusweg 737
1077 DG Amsterdam
PO Box 94700
1090 GS Amsterdam
Languages German, French, English, Dutch

Martika Jonk is a member of the Corporate/M&A Practice Group. She assists mainly international clients with mergers, share and asset acquisitions and re-organisations.

Martika also advises on a broad range of corporate and commercial matters.

Martika Jonk was resident partner of the Berlin office of CMS from 1992 to 1997. She was admitted to the Bar in Berlin in 1995 and has acted as legal counsel in many Dutch-German cross-border transactions. She has also worked in Boston, MA, as a foreign legal consultant. Her knowledge of both civil and common law makes Martika a good choice when it comes to advising US and other clients from common law jurisdictions who are doing business in the Netherlands.

Industry focus: Oil & Gas.

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The team at CMS, led by Martika Jonk, has been both very professional and very personable. Their willingness to engage with our business and issues at either a detailed or superficial level, depending upon what we needed was a refreshing change from those law firms who believe that they know best when it comes to how much effort needs to be put into every question asked of them.

The Legal 500 EMEA, 2020

Martika Jonk is recommended.

The Legal 500 EMEA, 2020

"German-qualified Martika Jonk advises German clients on the acquisition of Dutch assets."

Chambers Global, 2020

"Partner Martika Jonk has a focus on the upstream oil and gas industry advising on corporate matters and related regulatory issues. "

The Legal 500, 2019


  • New Board Program , Nyenrode Business University
  • Property Law , Grotius Academy for Post-Graduate Law Studies
  • Dutch Law, University of Amsterdam
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  • Supervisory board of Heijmans
  • Supervisory Catharina Hospital Eindhoven
  • Supervisory board of Gasunie
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