Thomas Derval

Thomas Derval practices commercial, financial and insurance law (regulatory & litigation).

He assists Belgian and international clients in a broad range of regulatory matters (e.g. MiFID II, IDD, AML, crowdfunding and consumer law), and in relation to financial, insurance, and credit product regulations. In this context, he has developed a particular interest in alternative and sustainable models and he regularly advises both Fintech and Insurtech startups and traditional actors of regulated sectors.

On a more general note, he also assists clients in contractual and liability matters and he represents their interests before the courts.

Thomas is recommended as a key lawyer by The Legal 500 in EU Regulatory: Financial Services and InsuranceThomas Derval is very engaged and has a practical mindset. He is very knowledgeable in (consumer) credit laws and intent on finding good solutions for his clients.” He is also mentioned in IFLR 1000He knows the practicalities of legally designing financial products very well. [he] has practical experience that is rarely found at high street firms” – “He is approachable and very nice to work with. His good knowledge of both financial regulations and more general laws allows him to have a holistic view on complicated issues”.

In addition to his practice, he is an Assistant Lecturer at the Free University of Brussels (ULB), where he has been giving seminars in Contracts & Torts since 2014.

Thomas is the recipient of the Georges Boels pleading prize.

Master of Laws (ULB), 2011

Advanced Master in Economic Law (ULB), 2012

LL.M. (University of Oxford), 2017

Member of the Brussels Bar, 2012



« La conclusion dynamique du contrat »
Th. DERVAL et Ch.-E. LAMBERT, « La conclusion dynamique du contrat », in R. Jafferali (coord.) Le Livre 5 du Code civil et le nouveau droit des contrats, coll. UB3, Bruxelles, Larcier, 2022 p. 73
1 June, 2022
"Quelques réflexions sur la rencontre des véhicules autonomes avec le droit des assurances"
Th. DERVAL et D-A SAUVAGE, "Quelques réflexions sur la rencontre des véhicules autonomes avec le droit des assurances", in Time to reshape the digital society - 40th anniversary of the CRIDS, Bruxelles, Larcier, 2021, p. 359-386.
22 November, 2021
T. DERVAL & C. DE THAYE, “Hoe goed dienen verzekeraars op de hoogte te zijn van de levenswijze van hun verzekerden?”
Bull. Ass./T. Verz., 2021, p. 187
24 June, 2021
« La localisation du préjudice financier: application de la jurisprudence européenne par la Cour de cassation » (note sous Cass., 05/09/2019)
R.D.C./T.B.H., 2021, p. 61
3 May, 2021
« La réglementation des clauses abusives entre entreprises dans le secteur de la Bancassurfinance »
Les clauses abusives B2B après la loi du 4 avril 2019, Bruxelles, Anthemis, 2020, p. 481.
21 September, 2020
« La clause d’arbitrage : une clause contractuelle comme les autres ? »
in Liber Amicorum CEPANI 50, Bruxelles, Wolters Kluwer, 2019, p. 209
15 November, 2019
"Arrêt 'Löber': la localisation du dommage extracontractuel du fait d'un prospectus trompeur"
J.D.E., 2019, p. 107
« L’application du principe Fraus omnia corrumpit en matière aquilienne »
Note sous Cass. 30 septembre 2015, R.G.D.C.-T.B.B.R., 2016, pp. 550-558.
26 February, 2016
« Condition résolutoire et clause résolutoire expresse: ressemblances et dissemblances »
JurimPratique, 2016, pp. 81-103
5 January, 2016
« Assurance vie et limitation des actifs éligibles : évolutions à venir ? »
For. Ass., 2016, pp. 61-62.
3 January, 2016
« Infraction urbanistique et illicéité de l’objet du contrat de vente : un trait d’union ténu »
R.G.D.C. / T.B.B.R., 2015, pp. 422-435
26 October, 2015
« Infraction urbanistique et illicéité de l’objet du contrat de vente : un trait d’union ténu »
R.G.D.C.-T.B.B.R., 2015, pp. 422-435.
1 January, 2015