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Practice Areas

Dr. Marc Hilber, LL.M.

Attorney (Rechtsanwalt)
Practice Areas:

IT&C / Aerospace & Defence


German, English, French

Office Cologne

Telephone: +49 221 2091 612
Telefax: +49 221 2091 333



Marc Hilber is specialised in advising companies on technology related transactions, and in particular on joint ventures as well as outsourcing and software development projects. He advises on contract structuring for outsourcing and cloud computing, on software projects, e-commerce and on data protection law.

According to the “Kanzleimonitor” law firm survey conducted by the Federal Association of Corporate Lawyers [Bundesverband für Unternehmensjuristen, BUJ], Marc ranks among the most recommended German IT lawyers in Germany. He is also recommended by name in the JUVE Handbook German Commercial Law Firms. The US-American publishing company Best Lawyers named him “Lawyer of the Year” in 2017 and, in 2016, the German economic journal WirtschaftsWoche voted him to be one of the best lawyers in Germany for IT-Law.

Marc Hilber is editor of the guide to Cloud Computing published by Otto Schmidt and co-editor of Beck's Online Commentary in IT Law (2019).


Career / Education

Marc is a partner of Oppenhoff & Partner. He was an associate and managing associate at Oppenhoff & Rädler / Linklaters LLP from 2002 to 2007. He studied law at the Universities of Passau, Angers, Illinois (LL.M.) and Cologne (Dr. iur.). As part of his legal training he worked for the US law firm Allegaert Berger & Vogel in New York.


Books and Legal Commentaries

"Deutsche Tochter im internationalen Konzern – Rechtshandbuch für die Praxis“ [German subsidiaries of international groups – a practical legal handbook], Munich 2019 (publisher)

Handbuch Cloud Computing - Systematische und praxisorientierte Darstellung des Cloud Computing [Handbook of cloud computing – a  systematic and practical presentation of cloud computing], 2014, published by Marc Hilber

Nomos-Sammelband, 2011, "Die Gestaltung von Preisanpassungklauseln in der Zwangsjacke des AGB-Rechts - zugleich Plädoyer für selbsttätige Preisanpassungsklauseln auf der Grundlage öffentlicher Indizes" [Configuration of price adjustment clauses within the straightjacket of the German provisions governing general business terms and conditions – simultaneous plea for automatic price adjustment clauses on the basis of public indices]

Guidelines Cloud Computing - Recht, Datenschutz & Compliance [Cloud computing – law, data protection & compliance] ed. by Competence Group Legal of EuroCloud Deutschland_eco e.V., November 2010

IT law and data protection, 2nd edition 2010, "Business Laws of Germany"

Mediation in der Anwaltspraxis [mediation as a legal service], 2nd edition, Cologne 2004, "Mediation im Zivilrecht, insbesondere im Wirtschaftsrecht" [Mediation in civil law, in particular in commercial law] (in collaboration with Dr. Klaus Günther)


Articles and Essays

"Anmerkung zu BGH Urteil vom 4.3.2010, Az. II ZR 79/09 zur Rechtsnatur des Internet-System-Vertrages" (in collaboration with Dr. Johannes Rabus) [Annotation of the decision of the Federal Court of Justice dated 4 March 2010, docket no. II ZR 79/09, on the legal nature of internet systems contracts] Computer & Recht 2010, p. 331

"Wer ist urheberrechtlicher Nutzer von Software bei Outsourcing-Vorhaben" [Who is the software user pursuant to copyright law in case of outsourcing projects?] ZUM 2009, p. 730 (in collaboration with Niels Litzka)

"Anmerkung zu OLG Frankfurt Beschluss vom 12.5.2009, Az 11 W 15/09" [Annotation of the decision of the Frankfurt Higher Regional Court dated 12 May 2009, docket no. 11 W 15/09] Computer & Recht 2009, p. 423 (in collaboration with Dr. Johannes Rabus)

"Anmerkung zu BGH Urteil vom 9.12.2008 , Az. VI ZR 173/07" [Annotation of the decision of the Federal Court of Justice dated 9 December 2008, docket no. VI ZR 173/97] , Computer & Recht 2009, p. 283 (in collaboration with Angela Busche)

"Vertragssicherheit - Wenn der Preis klettert" [Contract certainty – when the price climbs] Wirtschaftswoche online and Handelsblatt online dated December 9, 2008

"Die Übertragbarkeit von Softwarerechten im Kontext einer Outsourcingtransaktion" [The transferability of software rights within the context of an outsourcing transaction] CR 2008, p. 749

"Die datenschutzrechtliche Zulässigkeit intranet-basierter Datenbanken internationaler Konzerne" [The admissibility of intranet-based databases amongst international groups pursuant to data protection law], RDV 2005, p. 143

"Unzufriedenheit mit Outsourcing" [Dissatisfied with outsourcing], Frankfurter Allgemeine Zeitung dated July 20, 2005, p. 23

"Germany: The Admissibility of Intranet-based Employee Databases Amongst International Groups", World Data Protection Report dated June 2005, p. 17

"M&A und Datenschutz" [M&A and data protection] Finance magazine dated April 2005, p. 24

"Auswirkungen des Sarbanes-Oxley Act auf deutsche WP-Gesellschaften: Konflikte mit der Verschwiegenheitspflicht der Wirtschaftsprüfer und dem Datenschutzrecht" [Implications of the Sarbanes Oxley Act for German accounting firms with respect to conflicts between their secrecy obligation and data protection laws] (in collaboration with Dr. Jürgen Hartung), Betriebs-Berater 2003, p. 1054

"Implications of the Sarbanes Oxley Act for German Accounting Firms with Respect to Data Protection Laws" (in collaboration with Dr. Jürgen Hartung), World Data Protection Report dated May 2003, p. 12