Marc Grüninger

Attorney at Law, M.C.J.



Detailed CV

Practice Areas


Professional Profile

Marc Grüninger is a founding partner of GHR Rechtsanwälte AG and vice-chairman of the firm’s board of directors. He co-heads the firm's Corporate/M&A practice and heads the Capital Markets practice as well as the Energy and Natural Resources sector.

Marc Grüninger focuses on domestic and cross-border, private and public M&A, joint ventures, private equity transactions, and corporate finance, including debt financing, securities offerings, syndicated, structured and collateralized lending. He also specializes in advising companies active in regulated markets, such as energy and natural resources. He acts as an arbitrator (including ICC, ICSID, Swiss Chambers' Arbitration Centre).

From 2002 to 2017, Marc Grüninger was chairman of the board of directors of Cemex Research Group and board member of  other companies of the CEMEX Group, a global producer and marketer of cement and ready-mix products listed on the NYSE (NYSE: CX).

Marc Grüninger is regularly featured in leading international directories such as The Legal500, Who's Who Legal WWL, IFLR1000, Best Lawyers, etc. for his work in M&A, capital markets and energy law. He was recognized by BestLawyers Switzerland 2022 and 2023 as one of the leading lawyers in Switzerland in the field of Mergers & Acquisitions Law. Who's Who Legal WWL lists him among the ten most respected lawyers for energy and natural resources law and among the leading experts for business law in Switzerland. In February 2020, he was honored as Energy Lawyer of the Year at the Who’s Who Legal Switzerland Awards 2020 in Zurich. In April 2021, he was again recognized by WWL as Switzerland's Lawyer of the Year for Energy Law. In addition, Marc Grüninger is recommended by Who's Who Legal WWL as Global Elite Thought Leader-Energy 2022 and was selected for inclusion in the 2023 edition of Who's Who Legal: Thought-Global Elite 2023.


Career and Education


Partner at GHR Rechtsanwälte AG
Associate at EY
Associate at Bär & Karrer, Zurich


New York University School of Law (M.C.J.)
Bar admission
University of Bern (Rechtsanwalt)


German, English, French, Italian



Memberships and Activities


Swiss Bar Association SAV
Zurich Bar Association ZAV
Swiss Arbitration Association ASA


Member, Executive Committee, Energy Law Group (ELG)
Chairman, Executive Committee, Lawyers Associated Worldwide (LAW)
Member, Executive Committee, Verein der Freunde Kunstmuseum Bern
Member, Executive Committee, Lawyers Associated Worldwide (LAW)
Member, Board of trustees, Stiftung für Rheumaforschung, Zurich
Chairman, Board of directors, Cemex Swiss Holdings AG
Vice-chairman, Board of directors, GHR Rechtsanwälte AG
Chairman, Board of directors, Cemex Research Group AG
Chairman/Vice-Chairman, Board of directors, Cemex Trademarks Holding Ltd.
Chairman, Board of directors, Cemex Trademarks Worldwide Ltd.




Marc Grüninger is a co-author of the Basel Commentary on the Swiss Code of Obligations (Basler Kommentar, Obligationenrecht II, Honsell/Vogt/Watter, 1st, 2nd, and 3rd editions, Helbing Lichtenhahn, 1994 -2008) and on Swiss securities law (Basler Kommentar, Wertpapierrecht, Honsell/Vogt/Watter, Helbing Lichtenhahn, 2012).

He has also contributed to legal publications on renewable energy and public service obligations (International Energy Law and Taxation Review, Sweet & Maxwell) as well as on the Swiss electricity and gas markets (European Energy Journal, Claeys & Casteels).