Our Technology Group is market leading in advising on all aspects of technology matters for suppliers, users and creators.  We advise on supply of goods/services, licensing, outsourcing, e-commerce, data protection and intellectual property, as well as the broader range of corporate and commercial transactions typical in a full service law firm. Our client base includes both Irish start-up companies and established international brands.

We provide advice and practical guidance in relation to establishing and operating on-line businesses. Our experience includes distance selling, e-money, terms of business, domain name issues and dispute resolution.

We can help you with the complexities of data protection, obtaining appropriate consents, direct marketing, and assist with issues surrounding data transfers abroad.

We regularly advise clients on large scale projects including outsourcing and system supply, as well as general commercial activities such as the procurement of IT systems, software licensing, applications development, systems integration, support services, export control and cloud computing services.

Our team works closely with colleagues in other practice groups in the Firm to provide clients with a full legal service on corporate matters such as take-overs, mergers, trade sales, take privates, venture capital investments and IPOs; as well as agency and reseller agreements, non-disclosure agreements, employment and tax.  

On contentious matters, we work with our clients on negotiation and litigation strategies as and when disputes arise.

Our experience includes advising/acting for:

  • BSA | The Software Alliance, the leading advocate for the global software industry whose members include Microsoft, Apple, Oracle, Salesforce, SAS, Intel  and Siemens, in its role as an amicus curiae in the ongoing "Schrems II" litigation relating to the legality of the EU standard contractual clauses. This case is one of the most significant data protection actions of all time and has the potential to fundamentally alter the manner in which businesses can transfer data internationally. 
  • Microsoft in relation to US proceedings regarding data stored in Ireland (one of the most high profile technology related litigation matters globally) as well as strategic advices on the impact of Irish and European communications laws, data protection, privacy and security related matters.
  • Bord Gáis Energy, an Irish utility supplier, on its sponsorship agreement with the GAA
  • Clarion Capital Partners, a New York based private equity firm, on its acquisition of Madison Logic, Inc, the global leader in account based marketing, on some intricate aspects of the transaction involving data protection and the use of data
  • Canada Life, one of Ireland's leading life, pension and investment providers, during its negotiations with MSG Life Central Europe GmbH in a €20m transaction
  • Digicel Limited, the renowned communications and entertainment company, on its agreement with ZTE Corporation, a telecommunications equipment provider, for the provision of telecommunication services within the Caribbean
  • Premier Lotteries Ireland on the purchase of the National Lottery licence for €405 million including extensive negotiation on software and framework agreements in relation to the operation of the lottery system infrastructure and online operations.
  • Mongo DB on the ground-breaking MongoDB database software, commercial contracts, IP protection, open source and other licensing terms and customer negotiations.
  • King Digital Entertainment plc on the company’s complex reorganisation and redomiciliation to Ireland and Irish law issues in connection with its US$7.2bn admission to trading on the New York Stock Exchange in March 2014, which was Ireland’s biggest ever tech IPO. 
  • The Now Factory on its sale to IBM. This transaction represented one of the largest technology sales in Ireland in 2013.
  • A number of leading players in the automotive, IT and insurance industries regarding novel and innovative technology solutions for cars such as telematics systems and self-drive cars. 
  • ResMed, the global manufacturer of products for the treatment of sleep disorders, on technology licensing arrangements in relation to its collaboration with Nintendo, the Japanese multinational consumer electronics company.
  • PrePayPower, the fastest growing Irish electricity provider, in respect of the implementation of a key new IT platform which will serve as the engine of its e-commerce offerings to consumers.
  • The Irish Times, one of Ireland’s leading newspapers, in respect of a number of projects designed to enhance the digital presence of the brand. The growth of digital consumption of news is the most significant issue in the print media industry and William Fry is at the forefront of advising in respect of the innovative technology solutions adopted by the Irish Times.
  • Ergo, Microsoft Enterprise Cloud Partner of the year award 2014, on its partner agreement in connection with the engagement of third parties to resell and build upon the Ergo FlowForma product.  

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  • Clients note that the firm has a "young and innovative team" who are "always great to work with." Sources also appreciate that "they are up to date on new data protection regulations." Chambers Europe 2018
  • Clients praise the client-oriented nature of the advice "They offer a cogent, practical explanation of the law." Other interviewees value "the quality of the staff and the ability to recommend legal experts in other jurisdictions." Chambers EMEA 2017
  • David Cullen heads the "vibrant" practice at William Fry. Legal 500 EMEA, 2017
  • "This firm's passion and interest in the technology sector is outstanding - we have been tremendously impressed." Chambers Europe, 2016 
  • "The team has a wide range of experience that it brings to bear on specific issues, and provides timely and concise advice." Chambers Europe, 2016 
  • David Cullen’s team is noted for its ‘in-depth industry knowledge’. Legal 500 EMEA, 2016 
  • William Fry’s group includes ‘world class team lead’ David Cullen, as well as Leo Moore, who ‘balances risk and commercial opportunity’, and associate John Magee, who has ‘excellent technical know-how’. Legal 500 EMEA, 2015 
  • "This firm is very available and responsive, and good at tailoring advice for non-lawyers.Chambers Europe, 2015 
  • "We have a good degree of trust in this team's advice. The lawyers have a flexible approach, and are clearly high quality." Chambers Europe, 2015 
  • Team head David Cullen is ‘strategic and pragmatic’, and Leo Moore ‘incorporates industry knowledge and commercial acumen’. Legal 500 EMEA, 2014
  • "A proactive team that goes beyond expectations. If you give the lawyers an instruction, they will bring their own expertise and a holistic understanding of the technology environment." Chambers Europe 2014 
  • "The team is very responsive; the lawyers know what they are talking about, if not they will find an expert. They give appropriate advice and answer the questions I ask - I can't rate them highly enough."  Chambers Europe 2014 
  • Sources say: "If you are a start-up company looking for advice, these are the people to speak to. The team's work has brought huge benefit to my business.” Chambers Europe, 2013 
  • The lawyers are sharp and offer great strategic advice.” Chambers Europe, 2013 
  • William Fry’s team is ‘excellent and helpful at all times’, and has ‘superb business acumen’.  Legal 500 EMEA, 2013


  • David Cullen
    • Tech specialist David Cullen has a broad practice that includes outsourcing, big data, cloud computing and intellectual property. Clients feel he is "deeply knowledgeable in the areas of privacy and technology." Chambers Europe, 2017
    • David Cullen heads the "vibrant" practice at William Fry. Legal 500 EMEA, 2017
    • Esteemed practitioner David Cullen "has really incredible experience in the area of technology and IP, and is cool, calm and pragmatic," say sources. Chambers Europe 2016
    • "He has really incredible experience internationally and is cool and calm, with an extremely good understanding of the technology industry," say clients. Chambers Europe 2016
    • He is "tenacious, focused and always at the forefront of the issues concerned."  Chambers Europe 2015
    • An absolute expert and key leader, David Cullen "understands not only where our business is, but what our plans are, how we want to grow and what the consequences are," enthuse clients. Chambers Europe 2014
    • Technology head David Cullen is a highly experienced practitioner with "a wealth and depth of understanding; he really has a very comprehensive grasp of IT." Chambers Europe 2014
    • David Cullen is ‘strategic and pragmatic’. Legal 500 2014
    • David is a firm favourite with clients and is described as “calm and considered, with a wealth of knowledge about the area.” Chambers Europe 2013
    • David Cullen is ‘one of the best in the business’ . Legal 500 2013
  • Leo Moore
    • Clients identify Leo Moore as "very responsive, astute and commercially savvy." Chambers Europe, 2017
    • Leo Moore is described as "sharp and incisive." Legal 500 EMEA, 2017
    • According to sources, Leo Moore is "very good at grasping technical issues, and explaining them in a non-technical manner," with one adding: "One of the best things is that he figures out how to make things happen, never coming back with reasons not to do things." Chambers Europe 2016 
    • “He has a can-do attitude, is practical and available 24/7, and gets the job done. I couldn't do business without Leo,” enthuses a client. Chambers Europe 2016
    • Leo is "extremely responsive, knowledgeable and conscientious." Chambers Europe 2015
    • Leo Moore, who ‘balances risk and commercial opportunity’. Legal 500 2015
    • Leo Moore "is very pragmatic and personable. He comes up with creative solutions and is very good on trade mark and copyrights," according to one source. Chambers Europe 2014
    • "He has commercial acumen; he marries the business aspects with the legal aspects. He looks after our interests, but not at the expense of doing business."  Chambers Europe 2014
    • Leo Moore 'incorporates industry knowledge and commercial acumen'Legal 500 2014
    • Clients value Leo Moore's “no-messing, focused, can-do attitude." One states: "He deals with all my issues - it wouldn't be possible for me to do business without him!” Chambers Europe 2013
    • Leo Moore ‘will always find interesting commercial angles in times of need’. Legal 500 2013
  • John Magee
    • John Magee is recognised for his strong reputation in data privacy and cybersecurity.  Market observers agree he is "very good in data protection." Chambers Europe, 2017 
    • Clients pick out John Magee as an associate who is "easy and straightforward to deal with, even when under pressure. He is definitely a person I would go to in a crisis."  Chambers Europe 2016
    • John Magee, who has ‘excellent technical know-how’. Legal 500 2015
    • Clients find that John Magee "is timely and responsive; the quality of his advice is outstanding, practical and workable." Chambers Europe 2014
    • John Magee is regarded as “efficient, commercially solid and personable.”  Chambers Europe 2013
  • John O'Connor
    • John O'Connor has significant experience of advising technology, life sciences and financial services organisations on an array of technology-related matters. Clients say that he is "incredible to work with." Chambers Europe, 2017

Key Contacts

David Cullen Partner

Leo Moore Partner

John O'Connor Partner

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