Recognition
Finnius has consistently been recognized by the market and business for delivering exceptional client service and possessing unrivalled expertise on financial regulation. Our firm and our individual lawyers have received high rankings from a wide range of leading publications for overall excellence and for our work in the financial regulatory field. Please find the most recent notable rankings below.
Chambers Europe 2026
"Finnius always strikes the right balance between legal knowledge and pragmatism."
— Chambers Europe 2026
Banking & Finance Regulatory (Band 2)
Finnius is well known for focusing on financial regulatory matters, assisting clients with both contentious and non-contentious mandates. The law firm represents clients in challenges to administrative fines, as well as acting on regulatory approval matters. The team also advises on proposed new products, in addition to assisting clients with obtaining licences.
A client on our approach:
“Finnius has highly specialised knowledge and is particularly experienced in conducting legal proceedings in this field, which makes the team an invaluable resource.”
Bart Bierman (Band 2) advises clients on licensing matters and objections to fines imposed by the regulatory authority. In addition, he assists clients with obtaining regulatory approval for transactions and internal structuring matters.
“I am very happy with Bart Bierman’s market and theoretical knowledge, combined with his strong practical sense. He is responsive and a pleasure to work with.“
A combination that clients experience time and again:
“Bart Bierman is the person to go to.”
Rosemarijn Labeur (Band 3) acts for clients on a range of regulatory matters, including the compliance of new products, licensing applications and anti-money laundering requirements. In addition, she assists clients with obtaining regulatory approval for transactions.
Clients describe Rosemarijn Labeur as a lawyer who truly understands their world:
“Rosemarijn Labeur is a great lawyer with best-in-class knowledge, as well as a strong understanding of her clients’ business and challenges.“
Investment Funds
Finnius offers regulatory and compliance advice for fund managers, including MiFID, AIFMD and UCITS licence applications. The Finnius team assists with the establishment of real estate and venture capital funds. The practice group acts for both domestic and international clients.
A client on working with us:
“The Finnius team consists of very capable and knowledgeable partners and associates. They are subject matter experts with a great ability to implement things in practice.”
Rosemarijn Labeur (Band 3) advises fund managers on regulatory issues, particularly licensing applications. She is also experienced in the creation of real estate funds.
“We like to work with Rosemarijn Labeur for her expertise, availability and strong performance when discussing complex matters.”
What clients value most about her work:
“Rosemarijn Labeur is extremely proactive and intelligent.”
Tim de Wit (Band 3) assists a variety of clients with regulatory compliance matters, predominantly in relation to AIFMD and MiFID II legislation, but also on compliance with anti-money laundering regulations.
“Tim de Wit is very skilled, responsive and always prepared to think of solutions. It is a pleasure to work with him,“
That drive comes through in everything he does:
“Tim de Wit is creative, quick on his feet and very sharp.“
Chambers FinTech 2026 (Band 1)
Finnius is one of the largest financial regulatory law boutiques in the Netherlands. Its staff are predominantly senior practitioners with years of experience in previous roles at larger, international law firms. The firm combines both non-contentious and contentious regulatory services in advising on MiCAR and DORA as well as assisting in sensitive investigations and enforcement proceedings.
A client on working with us:
“The Finnius team is super commercial, very experienced and also very creative in their solutions.”
Bart Bierman (Band 3) is experienced in financial regulatory work, providing expertise to banks, investment firms and payment institutions on governance and regulatory queries.
“Bart Bierman is an excellent lawyer. He has a hands-on approach and the necessary depth in his field.”
That experience translates into a clear recommendation:
“Bart Bierman is fantastic. He is so commercially sharp and very responsive.”
Casper Riekerk (Band 3) focuses on market access and compliance matters. His expertise includes litigation against supervisory authorities and criminal investigations into financial institutions.
Clients are clear in their appreciation of Casper Riekerk:
“Casper Riekerk is very good and active.”
Tim de Wit (Band 3) advises clients on various FinTech matters, with particular expertise in asset management, payments and anti-money laundering. He regularly contributes to publications on asset management and investment funds.
“Tim de Wit is very proactive in his responses and is always on top of the latest changes in the sector.”
And that practical approach is what sets him apart
“Tim de Wit has a lot of hands on and tactical experience. He is very pragmatic and is able to break down technical financial law in an easy and digestible manner.”
"Finnius are very focused on this space and have excellent expertis."
— Chambers FinTech 2026
Legal 500 EMEA 2026
"A financial regulatory legal powerhouse in the Dutch market."
— Legal 500 EMEA 2026
Banking & Finance: Regulatory (Tier 1)
Finnius‘ ’excellent subject matter expertise’ encompasses EU and Dutch regulations governing AML and terror financing obligations, licensing requirements, and the frameworks governing cross-border corporate transactions. The firm also handles dealings with regulators, including litigation when the need arises. The latter forms the core of Guido Roth‘s practice, which covers challenges to DNB and AFM decisions. Bart Bierman is well versed in EU banking and capital requirements regulations, with Rosemarijn Labeur and Tim de Wit specialising in the regulations governing investment funds. Labeur is also well versed in the frameworks governing consumer credit and the EU’s SFDR. Other key members of the team include Guido Roth and Tim de Wit.
‘The team has excellent subject matter expertise and is willing to really engage with the client. There is zero arrogance coming from the excellent subject matter expertise.’
“Bart Bierman 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.”
Fintech (Tier 1)
Finnius’ fintech practice handles the full spectrum of fintech work. Bart Bierman regularly acts for start-up banks and investment firms, and is also well known for handling licensing matters in the fintech space. Tim de Wit handles fund matters and e-money issues, while Casper Riekerk assists with regulatory issues.
“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.“
Investment Funds (Tier 3)
Finnius advises asset managers, private equity firms and real estate companies on complex investment management mandates. Rosemarijn Labeur is sought-after for her depth of expertise in vendor due diligence, regulatory report drafting and investment risk management matters. Labeur leads the team alongside Tim de Wit, who offers ‘pragmatic advice’ in regulatory, structuring, and licensing matters involving sustainability- and carbon-focused private equity funds.
‘It’s always pleasant to work with Rosemarijn and Marieke. They are knowledgeable, easy to reach and hands-on in finding solutions.’
‘Tim de Wit has been instrumental to our company’s stable growth and has provided pragmatic advice along the way.’
Banking - Reports - Lexology Index - Lexology
Bart Bierman is recommended in the Lexology Index for Banking 2025 (formerly known as Who’s Who Legal).