Dr Sebastian Hack advises clients on all aspects of German and European competition law and merger control.

He represents and advises clients on all merger control and competition law aspects before the European Commission, the German Federal Cartel Office and before courts. He regularly advises clients on the set up and design of distribution systems and contracts, with a focus on digital distribution models and online sales.

He has been short listed as one of Germany's top competition lawyers by the prestigious "WirtschaftsWoche". Sebastian regularly publishes articles on competition/antitrust law issues including commenting on the Coty and the ASICS case and he is author of the competition law section of the forthcoming Fashion Law Handbook (published by Beck). Sebastian has particular sector specific expertise in the retail and digital sector.

After his studies in Cologne (Dr. jur.), Pittsburgh, New York and London (LL.M.) and his legal training (including stages at the German Federal Cartel Office and the European Commission), he began his career in the competition group of an international law firm in the Düsseldorf office (with further stages in London and Brussels) in 2013. He joined Osborne Clarke in 2016.


Osborne Clarke has advised German cloud provider gridscale on its acquisition by OVHcloud, read more.


Osborne Clarke advises on sale of Plantix to Helm AG, read more.

Tobii Dynavox

Osborne Clarke advises Tobii Dynavox on its agreement to acquire Rehadapt Engineering. Read more here


Osborne Clarke advises Taxfix on acquisition of start-up Steuerbot, read more

Allcargo Logistics

Osborne Clarke advises Allcargo Logistics on the acquisition of shares in Fair Trade GmbH, read more


Osborne Clarke advises Secomba on the sale of its encryption software to Dropbox, read more

Waverley Capital

Osborne Clarke advises Waverley Capital in Series B funding round at Endel, read more

akquinet enterprise solutions GmbH

Osborne Clarke advises shareholders of akquinet enterprise solutions GmbH on the sale to Vertica Capital Partners, read more


Osborne Clarke advises Indian IT group Infosys on acquisition of digital agency Oddity, read more

akquinet AG

Osborne Clarke advises AKQUINET AG on sale of shares and business interests to Deutsche Beteiligungs AG (DBAG), read more

Keen Venture Partners

Osborne Clarke advises Keen Venture Partners on EUR 25 million investment in Lendis, read more

Highland Europe

Osborne Clarke advises Highland Europe on investment in SoSafe, read more


Osborne Clarke has advised DoorDash on USD 750 million Series B financing round of rapid delivery firm Flink SE, read more

FUNKE Mediengruppe

Osborne Clarke berät FUNKE Mediengruppe bei Übernahme von Mehrheit an Musterhaus.net, lesen Sie hier mehr


Osborne Clarke advises Onit on acquisition of BusyLamp, read more

Bluu Biosciences

Osborne Clarke advises Bluu Biosciences in EUR 7 Mio financing round, read more

Chemical Companies

Chemical Companies Unite to Accelerate Sustainability for the Textile and Leather Industries, read more

Allgeier Enterprise Services AG

Osborne Clarke advises Allgeier Enterprise Services AG on the acquisition of publicplan GmbH, read more

CoStar Group

Osborne Clarke advises CoStar Group in the acquisition of Emporis GmbH, a global provider of building data. 


Osborne Clarke advises Fever-Tree on its acquisition of Global Drinks Partnership, read more

Providence Strategic Growth

Osborne Clarke advises Providence Strategic Growth on investment in Hornetsecurity, read more


Osborne Clarke named "Law Firm of the Year Germany 2020", read more


Osborne Clarke awarded TOP Law Firm 2020, read more

PT Elegant Textile Industry

Osborne Clarke advises PT Elegant Textile Industry on the acquisition of the majority stake in Spinnerei Lampertsmühle, read more

DB Schenker

Osborne Clarke advises DB Schenker on its investment in Volocopter, read more 


Osborne Clarke advises on the sale of Gastrofix to Lightspeed, read more

Jonny Fresh

Osborne Clarke advises Jonny Fresh on acquisition of Zipjet's German operations, read more

Next Kraftwerke

Next Kraftwerke and Osborne Clarke sucessfully challenge mixed-price procedure before OLG Düsseldorf, read more


Osborne Clarke advises fitvia on sale to Dermapharm, read more


Osborne Clarke advises gridscale on EUR 7m financing round, read more


Osborne Clarke advises CeleraOne on sale to Axel Springer, read more

Playa Games

Osborne Clarke advises the founders of Playa Games on its sale to Stillfront Group, read more


Osborne Clarke advises cargo.one on $3.2M seed financing round, read more

Allgeier SE

Osborne Clarke advises Allgeier SE on acquisition of US company Objectiva Software Solutions, read more


Osborne Clarke advises A-Gas on acquisition of Arthur Friedrichs Kaeltemittel, read more

Total Media

Osborne Clarke advises Total Media on joint venture with Mediaplus, read more


Osborne Clarke advised Grifols on €220m acquisition of Haema, read more

Goodix Technology

Osborne Clarke advised Goodix Technology on acquisition of Commsolid, read more

Reifenhäuser Group

Osborne Clarke advises EDS owner on takeover by Reifenhäuser Group, read more


Osborne Clarke advises ProSiebenSat.1 on the acquisition of esome, read more


International legal pratice Osborne Clarke has advised the Hamburg-based VAT start-up Taxdoo on a seed financing from (High-Tech Gründerfonds) HTGF.


Advised ProSiebenSat.1 on sale of weg.de to Lastminute.com, read more

Gustoso Gruppe

Advised Gustoso group on investment in Ciao Bella, read more


Advised TomTec on its takeover by Philips, read more

Contact Sebastian