Finnius
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Standing out for its 'pragmatic advice' and 'very knowledgeable’ team, Finnius demonstrates a specialist focus at the intersection of financial regulation, fintech, and investment management. The firm stands out as a trusted adviser to major fintech players and regularly represents clients in fintech-related litigation, while continuing to expand its capabilities in emerging areas such as ESG-linked compliance and integrity investigations. Bart Bierman handles the full spectrum of fintech regulation, spanning licensing strategies, EU regulatory frameworks, sector M&A, and governance and compliance for digital-first financial institutions. Casper Riekerk specialises in fintech regulatory matters, particularly concerning payment services, e-money and crypto licensing, AI-driven compliance tools, and AML/CDD frameworks. Tim de Wit is another key figure within the group.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Down to earth, easy to work with, pragmatic advice and very knowledgeable.’
- ‘Tim de Wit and Marieke Spee have been instrumental to our company's stable growth under regulatory restrictions/requirements, and they have provided pragmatic advice along the way. Part of the team.’
Key clients
- Abu Dhabi Investment Agency
- Acrisure Group
Work highlights
Helped secure a MiCAR licence for Amdax, one of the first licences issued in the Netherlands and one of the few crypto service providers to receive this licence before the deadline.


