Josien Uijttenhove

Josien represents and advises clients in commercial civil litigation and international and domestic arbitration, with a particular focus on contract and liability law. She often represents clients in preliminary relief proceedings at the Dutch State Courts. Prior to joining Ysquare, Josien worked for Loyens & Loeff, where she advised clients in complex commercial disputes across various sectors and industries and gained notable experience in the healthcare industry. She also advises clients on their procurement strategy. In 2017, Josien was seconded to a grid manager for several months, where she handled contract and procurement issues. Josien enjoys lecturing on various subjects.


Healthcare insurance and healthcare financing
Numerous proceedings for health insurers, including turnover limit disputes, reimbursement issues and healthcare procurement procedures

Healthcare – general
Legal proceedings for care offices and care providers regarding the termination of care agreements

Construction – procurement
Representing various construction companies in preliminary relief proceedings regarding European public tenders

Services – private equity
Proceedings on behalf of a private equity firm regarding the interpretation of a provision in a service agreement

Real Estate
Various legal proceedings on the enforcement of rights of pledge on shares in a Dutch company as a result of a dispute about the purchase of a real estate portfolio

Representing a supplier of technical equipment in preliminary relief proceedings regarding a European public Tender


Since 12/2020 
Ysquare | Attorney

2015 – 2020 
Loyens & Loeff | Attorney


University of Amsterdam | LL.M. 

University of Amsterdam | Educational Studies


Case comments on Court of Appeal The Hague 16 July 2019, ECLI:NL:GHDHA:2019:1836, Jurisprudentie Aanbestedingsrecht 2019/125

‘Past Performance als uitsluitingsgrond, waar staan we?’, Tender Nieuwsbrief no. 5, July 2020


Dutch, English