Ranking tables

TMT: Telecommunications | Europe

Ireland

The below TMT: Telecommunications rankings table provides market-leading insights on the top ranked lawyers and law firms whose advice and legal services can be purchased in Ireland. The rankings are the result of extensive research by our internal research team, who conduct interviews with in-house counsel, other third-party experts and private practice lawyers who have worked alongside them. Use our table and ranking system to identify the most suited provider of legal services for you.

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Spotlight

  1. Arthur Cox
    Arthur Cox
    TMT: Telecommunications
    2025 | Spotlight | 6 Years Ranked

    Arthur Cox is a market-leading firm with a front-running IT and outsourcing team. The law firm advises major domestic corporate clients on the negotiation of IT outsourcing contracts. The practice maintains a strong reputation for providing data protection compliance support, with further proven experience in the defence of enforcement proceedings carried out by the Irish data protection regulator. The team also has capabilities in the the telecommunications space and regularly provides regulatory support and transactional advice for telecoms companies. The legal team's client roster includes leading players in the e-commerce, banking and IT sectors as well as public bodies.

  2. Mason Hayes & Curran LLP
    Mason Hayes & Curran LLP
    TMT: Telecommunications
    2025 | Spotlight | 10 Years Ranked
    Mason Hayes & Curran has an impressive team with a superb reputation for work in the telecoms and IT sectors. The law firm is called upon by regulators, government bodies and multinational companies to assist with Irish and EU telecoms regulatory matters. The department assists with data protection compliance matters for companies that collect and share vast amounts of customer data. The law firm also advises on notification obligations arising for companies that are subject to data breaches.
  3. Matheson LLP
    Matheson LLP
    TMT: Telecommunications
    2025 | Spotlight | 8 Years Ranked
    Matheson offers expertise in niche areas of media law, including issues relating to the financing of films and television programmes. The practice also demonstrates expertise in media sector transactional mandates. The technology group boasts experience in complex IT contractual and data protection regulatory matters. Lawyers in the team offer further experience assisting telecoms clients with disputes before the regulator and with the rollout of network upgrades.
  4. McCann FitzGerald LLP
    McCann FitzGerald LLP
    TMT: Telecommunications
    2025 | Spotlight | 10 Years Ranked

    McCann FitzGerald houses an esteemed TMT department offering a high level of specialisation in media cases and strong IT and telecoms expertise. The law firm is frequently instructed by leading broadcasters and publishing companies, with proven experience in defamation cases. The IT practice advises on data protection mandates and complex outsourcing projects. The legal team also advises key clients on telecoms regulatory issues arising from their participation in infrastructure projects. McCann FitzGerald is well known for its reputation acting for both public and private clients on telecoms regulatory issues.

  5. William Fry LLP
    William Fry LLP
    TMT: Telecommunications
    2025 | Spotlight | 10 Years Ranked
    William Fry has a significant technology practice that acts on an array of data protection mandates. The law firm also acts on international data transfers and IT outsourcing agreements. Lawyers in the practice offer notable experience in contentious telecoms regulatory matters, having defended the national communications regulator ComReg in standout appeal proceedings. The department also advises on telecoms sector M&A deals or the rollout of new telecoms infrastructure.