Mason Hayes & Curran LLP

Managing Partner: Will Carmody

Chair: Philip Nolan

Number of partners: 117

Number of lawyers: 320

Languages: French, German, Italian, Portuguese, Russian, Spanish

Mason Hayes & Curran is a leading Irish business law firm, home to 120 partners and total staff in excess of 600. Our lawyers combine deep sectoral expertise with commercial insight to help domestic and international clients navigate complex legal and business challenges. We support our clients at every stage of the business lifecycle, providing pragmatic, forward-thinking advice that drives success.

Corporate social responsibility is embedded in our firm’s culture. We are committed to making a positive impact through targeted initiatives that support our society and local communities.

With offices in London, New York, and San Francisco, we bring an in-depth understanding of cross-border business dynamics. Our expertise enables us to guide clients seamlessly through the intricacies of investing and establishing operations in a new jurisdiction.



Corporate: Our corporate team is recognised as a market leader, advising domestic and global businesses on a broad range of transactions. From high-growth start-ups to multinational corporations, we provide strategic counsel on some of the most high-profile, innovative, and complex deals in the Irish market.

Contact: Martin Kelleher Email: [email protected]

Dispute Resolution & Commercial Litigation: Our Dispute Resolution team has an outstanding track record in handling high-value and complex commercial disputes. We are leaders in boardroom and shareholder conflicts, intellectual property matters, regulatory investigations, employment issues, and competition disputes. We frequently advise international clients on multi-jurisdictional litigation, offering strategic guidance tailored to different legal systems worldwide.

Contact: Maurice Phelan Email: [email protected]

Employment & Benefits: Understanding the complexities employers face across industries, our Employment & Benefits team delivers tailored solutions that empower organisations to make informed, confident decisions. Our client base spans leading domestic and multinational employers who rely on us for strategic, business-focused employment law advice.

Contact: Melanie Crowley Email: [email protected]

Financial Services & Banking: Our Financial Services team delivers high-calibre advice to domestic and international clients across acquisition and leveraged finance, asset finance, debt capital markets, project finance, and transaction restructuring. We are particularly renowned for advising private equity and corporate clients on sophisticated financing structures.

Contact: Neil Campbell Email: [email protected]

Construction, Infrastructure & Utilities: Recognised as a dominant force in the Irish market, our team has extensive experience advising on complex projects. We represent clients in all dispute resolution forums and provide commercially driven, solution-focused legal support from project inception to completion.

Contact: Rory Kirrane SC Email: [email protected]

Real Estate: Home to Ireland’s largest real estate team, we offer unparalleled expertise in structuring and executing complex property transactions. Our clients include banks, state agencies, corporates, multinationals, and institutional investors. We have deep sectoral knowledge across energy, technology, healthcare, and hospitality.

Contact: Vanessa Byrne Email: [email protected]

Technology: Our Data & Technology team is the first choice for multinational tech companies, reflecting our status as Ireland’s leading advisers on technology and data privacy matters. We advise social media and search platforms, as well as high-potential start-ups, on issues ranging from early-stage funding to intellectual property management and global privacy frameworks and investigations.

Contact: Philip Nolan Email: [email protected]

Taxation: Our specialist Tax team, comprising internationally experienced professionals, provides cutting-edge tax solutions to corporate and individual clients. We focus on optimising Ireland’s tax framework as part of global tax management strategies for businesses and high-net-worth individuals.

Contact: Niamh Caffrey Email: [email protected]