
Drawing upon a 'strong knowledge of the legal and regulatory framework' in Luxembourg and the EU, Loyens & Loeff can deliver 'commercially minded and practical' solutions to global and European asset managers investing in a broad range of different alternative asset classes. Led by Marc Meyers, the firm works very well with international law firms as co-counsel and is skilled at handling work throughout the fund life-cycle, to include fundraising/structuring, fund finance, ongoing regulatory compliance advice, restructuring and advice on continuation strategies or liquidation. Private equity represents a core area of expertise, with the firm—working in close coordination with New York-based Frank van Kuijk — maintaining strong engagement with leading US sponsors to advise on their EU-based fundraising deal structuring efforts. With experience gained through time spent at the firm's London office, Jérôme Mullmaier brings 'clarity and strategic insight to complex matters', including for UK-based asset managers utilising Luxembourg fund structures to facilitate private equity, infrastructure and private debt strategies. At an associate level, Maider Ruault provides 'high-quality support with precision and professionalism' to international sponsors on the regulatory and operational aspects of Luxembourg alternative funds.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- Jerome Mullmaier - I’ve worked with Jérôme for over a decade and have grown professionally alongside him. He’s a sharp, reliable, and collaborative partner who consistently brings clarity and strategic insight to complex matters. His depth of expertise and calm leadership make him an invaluable asset to any team. Maider Ruault - Maider has been a key part of our account, consistently delivering high-quality support with precision and professionalism. She’s proactive, detail-oriented, and a pleasure to work with—always ensuring matters move forward smoothly and efficiently.
- We engaged Loyens & Loeff for Luxembourg law advice in connection with the establishment of a Luxembourg fund. The team demonstrated strong knowledge of the legal and regulatory framework and was very responsive and efficient. In particular, they provided valuable support on a novel and complex structure, where their input helped us navigate unfamiliar issues with clarity. We found their advice practical and reliable, and overall they delivered a great level of support.
- Both Frank van Kuijk (Partner) and Benjamin Hitzges (Associate) were great to work with and provided great advice on a complex and novel structure. In particular, Benjamin was super responsive and efficient and met tight deadlines.
- We’ve worked with the Loyens & Loeff Funds team for over a decade, and their deep understanding of the Luxembourg market has been invaluable. What stands out is their integrated legal and restructuring expertise, which helps us navigate complex fund structures with confidence. They’re responsive, commercially minded, and consistently deliver practical solutions. Their collaborative approach and openness to innovation—whether in technology, billing, or team diversity—make them a trusted long-term partner.
- 'Both Frank van Kuijk and Benjamin Hitzges were great to work with and provided great advice on a complex and novel structure. Benjamin was super responsive and efficient and met tight deadlines.'
- 'Jérôme Mullmaier is a sharp, reliable and collaborative partner who consistently brings clarity and strategic insight to complex matters.'
- 'Maïder Ruault delivers high-quality support with precision and professionalism. She’s proactive, detail-oriented, and a pleasure to work with, always ensuring matters move forward smoothly and efficiently.'
- 'The team demonstrates strong knowledge of the legal and regulatory framework and is very responsive and efficient.'
- 'What stands out is the integrated legal and restructuring expertise, which helps us navigate complex fund structures with confidence.'
- 'They’re responsive, commercially minded and consistently deliver practical solutions.'
Key clients
- AlpInvest Partners
- Apax Partners
- Arcmont Asset Management
- Aroundtown S.A.
- Berkshire Partners
- Brookfield Asset Management
- Cheyne Capital
- Copenhagen Infrastructure Partners
- EQT
- Fiera Infrastructure Inc.
- HayFin Capital Management
- Institutional Capital Network, Inc.
- Morgan Stanley
- Newmarket Capital
- One Equity Partners
- Palistar Capital
- RBC BlueBay Asset Management
- AshGrove
- Jerusalem Venture Partners
- New 2nd Capital Management
Work highlights
Advised EQT on the regulatory and legal aspects of multiple fund formations that closed in 2025, including the structuring of EQT Infrastructure VI.
Advised Berkshire Partners on the closing of Berkshire Fund XI, securing approximately $7.8bn in commitments.
Provided Copenhagen Infrastructure Partners with legal and tax advice related to the structuring, establishment and launch of Copenhagen Infrastructure Green Credit Fund II.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Maider Ruault
Practice head
Marc Meyers
Other key lawyers
Jérôme Mullmaier; Frank van Kuijk; Marjorie André; Christophe Boyer; Irina Stoliarova; Mathilde Scheirlinck; Maïder Ruault; Benjamin Hitzges
Comparative Guides
Comparative Guide
Private Equity
Luxembourg
Ana Nicoleta Andreiana, Kheira Mebrek, Alina Stoica & Pierre-Antoine Klethi
Comparative Guide
Enforcement of Judgments in Civil and Commercial Matters
Luxembourg
Véronique Hoffeld, Olivier Marquais & Ambre Riley
Comparative Guide
Mergers & Acquisitions
Luxembourg
Frédéric Lemoine, Anne Labroca, Noémi Gémesi & Jerome Jacques

