Jelmer specialises in finance and (financial) restructuring. In his daily practice, he advises and assists national and international clients in the acquisition or provision of finance. In addition, he assists parties in and around insolvency, including under the Court Approval of a Private Composition (Prevention of Insolvency) Act (WHOA). Jelmer has a specific focus on types of non-bank finance like direct lending, crowdfunding, (marketable) debt instruments, leasing, factoring and securitisation. This non-bank finance practice is unique in the market.

Clients value Jelmer for his specialist knowledge and dedication. His level-headedness and pragmatic approach are often mentioned in this regard. In his advice, Jelmer goes beyond the legal. He thinks commercially. It is not for nothing that Jelmer has, for many clients and for years, been a regular sparring partner where entrepreneurial decisions are concerned. A role that suits him down to the ground.