Dirk Walter Hamann


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Practice Groups and Client Sectors:

Corporate,  FinTech, Cryptocurrencies, and Blockchain,  International,  Litigation,  Private Client,  Real Estate,  Technology

Areas of Focus:

Corporate Governance,  Energy and Project Finance,  Africa,  Commercial Litigation,  Europe,  International Transactions,  Mergers and Acquisitions,  Non-Profit Organizations,  Private Investment Funds,  Emerging Companies and Venture Capital,  Energy Transactions
Dirk Walter Hamann


University of Mainz


University of Münster


Previous Experience

  • Herbert Smith Freehills LLP (Partner)
  • Freshfields Bruckhaus Deringer LLP (Partner)
  • German Association Club or Rome (Management Board)

Professional Experience

Dr. Hamann, attorney at law since 1992, and long-standing partner in two of the international leading law firms before joining Rimon, first at Freshfields Bruckhaus Deringer (Hamburg, until 2014), second at Herbert Smith Freehills in Berlin (2014-2019), is one of the most distinctive and experienced corporate lawyers in Germany with a broad range of relevant international and domestic clients in various industry sectors.

He started his career with an outstanding first legal state exam in 1988 at the University of Mainz (within best 2% of graduates), an outstanding legal dissertation on energy and cartel law (Dr. jur., summa cum laude, sponsored by the late Prof. Dr. Rudolf Lukes) in 1991, honored by the Harry Westermann award of the University of Münster in 1992 as best legal dissertation, followed by an outstanding second legal state exam in 1992 (within best 3% of graduates) and becoming an attorney at law at Bruckhaus Westrick Stegemann (the predecessor law firm of what is today known as Freshfields Bruckhaus Deringer where he became a partner beginning of 1997, specializing in corporate laws, M&A and other transactions and projects in various industry sectors, including - inter alia - energy and natural resources.

He advised, for instance, the Swedish state-owned utility group Vattenfall, Stockholm, on its market entry into Germany, acquiring the Hamburg based utility HEW, the majority in the Berlin-based Bewag, indirectly via HEW the East Germany based VEAG/Laubag and, eventually, transforming the German group parts in a series of restructuring steps into what is now known as Vattenfall Europe headquartered in Berlin.

He became global co-head of the sector group Energy & Natural Resources at Freshfields Bruckhaus Deringer for 4 years.

In 2014 he moved to Berlin joining Herbert Smith Freehills as a corporate partner where he began - inter alia - to also work for the Federal Republic of Germany.

The very large spectrum of his deep experience includes:

- taking care of the public welfare interests on instruction of the Federal Republic of Germany in the defense sector (drafting, negotiating and concluding the national security agreement in large scale transactions with various renown companies) as well as advising Germany in the large aircraft manufacturing sector (in particular in relation to a European large aircraft manufacturer and in the WTO-trade law context supporting Germany in relation to the EU commission and vis a vis the USA positioning),


- advising on important, often-times billion Euro volume, transactions and projects in the energy and infrastructure sectors on behalf of renown strategic industrial clients and international financial investors (funds including SWFs),


- taking care of the commercial interests of individual enterprises, the so-called Mittelstand (medium-sized companies often family-owned and often global market leaders in their field of expertise), start-ups, public bodies/ municipalities, in a variety of transactions/ projects in a number of sectors such as trade, transportation, healthcare, water hygiene/ water supply, renewable energy, stakeholdings in publishing companies,


- pro bono advice for associations servicing the public welfare interests (e.g. the Desertec Foundation on the joint venture formed with a number of renowned large groups of companies which became known for its vision to provide renewable, basically solar powered energy generation from the deserts in North Africa) and the German Association of the Club of Rome, where he is a member and part of its management board (Präsidium). He is also a member of the advisory board for the new University of Digital Science in Berlin).

His advisory activities include relevant corporate litigation, e.g. international and domestic arbitration and court proceedings (in the telecommunications sector, carbon black and tyre manufacturing sector, healthcare sector) as well as regulatory aspects in the industries he advises including the German Foreign Trade Act (for non-European investors, e.g. from U.S. or Asia).

He has also advised on the first German toll road project for motorways (at the time called Autobahngebührenerhebungssystem, AGES), as well as on regulatory aspects with media control authorities and, in the healthcare sector, on transactions concerning hospitals and in larger real estate transactions.

Dr. Hamann is chairman of the supervisory board of ÖKO-TEST AG, Frankfurt, since December 2018 and dedicates more and more of his professional experience and energy to the decisive, big questions of our time (sustainability, social impact investment, climate change).

Having joined the renowned leading German expert on all matters sustainability, Dr. Daniel Dahm, as a co-shareholder at United Sustainability Holding GmbH, Berlin, he is convinced of the belief that - in the interest of future generations - (also) the financial and investment sector at large needs to be transformed such that the vast financial resources available should be directed into the just and right investments for the preservation and expansion of the natural livelihoods.

Professional Honors & Awards

  • Harry Westerman Award - University of Münster, 1992