Tycho de Graaf is specialised in drafting, advising, negotiating as well as litigating ICT- and e-commerce contracts (including in areas such as development, licensing, support and maintenance, outsourcing, hosting, cloud and e-commerce) and contracts of a more general nature (such as general terms and conditions as well as agency, distribution and franchise contracts).

Tycho studied civil and commercial law at the University of Leiden and became a lawyer at NautaDutilh N.V. in 1997. He was awarded a PhD in 2006 on the subject of limitation of liability clauses and completed an in-depth specialisation course on national and international contracts (cum laude) at the Grotius Academy that same year.

Tycho is also a principal lecturer at the Law Firm School and active at Leiden University as a lecturer at eLaw@Leiden and an associate fellow at the Meijers Research Institute and Graduate School. He frequently lectures to clients and peers, publishes regularly and serves on editorial boards of leading legal journals and websites.

Chambers: "praised as being 'very inventive and creative, as well as pragmatic and quick.' He has experience across the full spectrum of IT matters and is further admired for the 'considered view' he brings." (2013). "well recognized for his strong expertise in IT and e-commerce contracts. No one knows more than he does in this field, says a source" (2012). "combines a 'service-oriented manner' with 'sound technology knowledge,' to the delight of his clients." (2009).

Legal 500: "an outstanding lawyer for IT contract negotiations" (2013), "always offers extremely high-quality and very practical advice" (2010), "highly recommended by clients for a 'unique combination of legal skills with IT and international experience'." (2009).