Dentons Ireland LLP is becoming increasingly known in the Irish IP market, with the recruitment of Mark O'Shaughnessy bolstering its contentious IP offering in May 2025.

Eoin Martyn and Jo Joyce have recently grown Taylor Wessing‘s IP presence across patents, trade marks, copyright and design matters.

John Cahir leads A&L Goodbody LLP‘s team, which is well-positioned to advise on a wide range of contentious and non-contentious IP issues relating to new technologies and products. Alongside extensive experience representing clients in large cases to come before the Irish courts, the team advises on the IP aspects of corporate transactions, and various copyright, patent and trade mark infringement issues. Also noted for his proficiency handling disputes, John Whelan and Aideen Burke field a considerable workload for technology and pharma companies, regularly advising on the exploitation and protection of IP.

Mason Hayes & Curran Professional Services Ltd‘s broad intellectual property practice covers non-contentious and contentious IP mandates, with trade mark filing and protection work remaining a key component of the team’s offering, particularly related to international portfolios. The group’s strength extends to patent litigation, copyright and design rights advice. Gerard Kelly enjoys a strong reputation in IP litigation and spearheads the offering, while Hazel McDwyer specialises in brand protection issues and trade mark strategies. Eimear O’Brien is another key team member, as is John Milligan.

Covering a wide range of intellectual property mandates, McCann FitzGerald LLP‘s IP practice regularly advises on trade mark protection, patents, trade secrets and the exploitation of IP rights. The group has expertise assisting domestic and international clients across the life sciences sector, as well as in the creative industries, consumer goods and retail spaces. With expert multi-jurisdictional patent/SPC litigation capabilities, Fiona O’Beirne leads the contentious team. Adam Finlay is at the helm of the non-contentious IP offering, specialising in trade marks. Another key contact is Shane O’Brien, particularly for patent disputes in the pharmaceutical sector.

Highly praised by clients, William Fry LLP‘s intellectual property team handles a wide range of contentious and non-contentious mandates. Laura Scott leads the contentious team, which showcases a strong track record in patent litigation and disputes involving trade marks, copyright and designs. The non-contentious and commercial IP offering is spearheaded by Leo Moore. The team regularly advises clients on the identification, protection and exploitation of IP, which includes work on large transactions and restructuring mandates. Colette Brady and Charleen O’Keeffe are key members of the team, as are Barry Scannell and John Sugrue.

Arthur Cox’s intellectual property group is well-placed to advise Irish corporates and international clients with operations in Ireland on large IP mandates. The group has expertise across trade marks, copyright and database and design rights in a variety of sectors. The team are a key port of call for technology and pharmaceutical clients on advisory and transactional matters, disputes and tax effective IP structures. At the helm is Olivia Mullooly, who is a particularly strong choice for significant non-contentious IP matters, including issues associated with restructurings, M&A and corporate disposals.

DFMG Solicitors manages a varied caseload of contentious and non-contentious IP mandates, notably handling IP portfolios and dealing with associated brand clearances, prosecutions, oppositions, challenges, and enforcement work. Led by Patricia McGovern, the team is a key port of call for clients across a diverse range of industries, such as the consumer goods and retail, pharmaceutical, technology and manufacturing sectors.

Matheson LLP‘s team, which consists of experts from its technology and innovation and disputes groups, assists with various contentious and non-contentious IP mandates. The group is often engaged to advise on IP strategy and considerations in transactions and projects, and trade mark infringement and passing off claims. Well-equipped to implement ‘ground up structures’, it is a go-to for clients establishing or with established Irish operations. Anne-Marie Bohan heads the team and assists clients with the management, commercialisation and licensing of IP.

The team at Pinsent Masons LLP has a notable proficiency in patent revocation and infringement proceedings, alongside soft IP strengths such as handling trade mark filings and enforcement work. Reputed for a depth of expertise in a range of contentious and non-contentious IP mandates, Maureen Daly and Karen Gallagher lead the practice, which assists clients across an array of sectors, including the pharmaceutical, energy, technology and retail sectors. Jane Bourke is another key member of the group.

Beauchamps LLP‘s IP team, which is jointly steered by David McMunn, Damian Maloney and Edward Evans, handles a variety of mandates for clients spanning the public sector, and the entertainment, technology, food and beverage industries. Practice strengths include drafting and negotiating contracts such as licensing agreements. The team’s reach was extended with McMunn’s arrival in 2025; he adds copyright, trade mark and patent experience.

Bird & Bird’s growing IP team assists clients across a wide range of contentious and non-contentious patent, trade mark and design and copyright matters. The team are well-placed to advise on relevant intellectual property rights and brand protection. With a particular focus on pharmaceutical patents and high-value trade mark disputes, the team regularly acts in complex multi-jurisdictional IP litigation. Co-heads Ann Henry and Michael Finn continue to lead in complex contentious mandates, particularly in the life sciences, technology and entertainment sectors.

DLA Piper Ireland LLP is geared to support domestic and international clients on large IP mandates with cross-border elements, with particular strength in patent and SPC-related matters and IP-related transactions. Gavin Woods specialises in contentious IP, as does Aoife Murphy, who leads this part of the practice with expertise in high-profile patent cases. Co-head Mark Rasdale is a strong choice for IP advisory work and transactions, as is John Magee. Conor McEneaney is another key name to note.

Hayes Solicitors LLP advises a wide range of clients on a broad spectrum of IP matters in a variety of industries, including the media, sport, entertainment, IT and retail spaces. Led by David Phelan, the team is noted for its work in trade mark prosecutions and contentious IP matters, and is well-equipped to assist clients with various copyright issues. The group is a notable name for sports, television and radio personalities, as well as international and national brands and agencies in the media and advertising sector.

RDJ LLP houses a highly experienced IP team with particularly strong credentials in transactional IP and licensing mandates, including technology transfers between universities and the private sectors. The group is also a trusted adviser to domestic and international life sciences clients on IP agreements and R&D projects. Diarmaid Gavin, who heads the non-contentious IP practice, specialises in research and knowledge transfers, while Darryl Broderick leads the contentious team and focuses on IP and media disputes.

Whitney Moore has a longstanding reputation for patent and trade mark cases, including preliminary injunction decisions. Practice head Robin Hayes exhibits skill in contentious trade mark and design infringement mandates.

A key component of Addleshaw Goddard‘s IP offering is the management of trade mark portfolios, though the team also comfortably handles a range of contentious and non-contentious mandates, including copyright enforcement. Its diverse client base spans the TMT, retail and pharmaceutical sectors, as well as insurance, regulatory and financial compliance spaces. Team head David Hackett typically advises on trade mark issues and is a registered trade mark agent, as is Jane Farren.

Covering IP protection, enforcement and disputes, the team at Browne Jacobson Ireland LLP works with domestic and international clients across the food and beverage, technology and media sectors. Transactional IP mandates are a key strength of the team, which is well-placed to advise on IP reorganisations, licensing issues and assignments. Ciarán Markey heads up the contentious practice, while Jeanne Kelly spearheads the non-contentious offering.

Byrne Wallace Shields LLP‘s intellectual property team assists in a range of contentious and non-contentious IP mandates, including brand and design protection. Considered a go-to for clients in the life sciences sector, Colin Sainsbury leads the non-contentious IP offering and regularly drafts and negotiates licensing, supply and service agreements. Jane O’Grady, who joined as part of the merger in 2025, is a strong adviser on the IP aspects of acquisitions and sales, and the protection, commercialisation and infringement of IP more broadly.

Acting for domestic and international clients, the technology and commercial team at EY Law Ireland offers a broad service covering IP creation, R&D and portfolio management, as well as commercialisation and enforcement mandates. The group, led by Peter Bolger and Robert Haniver, also advises on the IP aspects of corporate transactions. Susan Walsh joined in 2025.

Flynn O'Driscoll‘s data privacy and intellectual property team is a go-to adviser for clients in the technology sector, regularly assisting with agreements associated with the development, ownership, protection and licensing of IP. Laura Myles is at the helm and her advice covers the acquisition and assignment of IP portfolios, and IP management and enforcement work.