Finnius
We are only able to display limited information for this firm. We display more complete information for all of the following firms:
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.
- ‘Bart Biermann stands out in his knowledge of Dutch financial regulatory law and his responsiveness. The appeal of working with this boutique firm is that it is attentive to small matters as well as being capable of working on larger transactions.'
- ‘The Finnius team is very responsive and on top of things, knowledgeable of the practice area we requested their advice for. I particularly like their attentiveness, their focus on details and being practicable when needed.’
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.


