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Lewis Silkin LLP

Living Wage
Work 020 7074 8000
Fax 020 7864 1200

Sean Dempsey

Work 020 7074 8032
Lewis Silkin LLP

Work Department

Employment, reward and immigration.


Sean is an Employment Partner at Lewis Silkin and Head of the firm's Technology and Communications Sector Group. He has a substantial client base of large international technology companies. He advises on all employment matters, particularly employment litigation, international employment projects and employment law aspects of global acquisitions and restructures.


Trained Lovells; qualified 2001; associate Lewis Silkin 2001-09; partner Lewis Silkin 2009-date.


Employment Lawyers Association; Centre for Effective Dispute Resolution (CEDR) Exchange; Ius Laboris.


Terenure College, Dublin; University College Dublin (including one year at DePaul College of Law, Chicago) (1996 Bachelor of Civil Law – International); University of Cambridge (1998 LLM); Nottingham Law School (1999 LPC); CEDR Accredited Mediator (2005).


Rugby, football, reading and cinema.

London: TMT (technology, media and telecoms)

IT and telecoms

Within: IT and telecoms

The 'excellent' technology practice at Lewis Silkin LLP acts for clients such as Hutchison 3G, Electronic Arts and new clients Elitech and VE Global, on a range of commercial and transactional matters. James Gill  heads the technology group alongside Sean Dempsey and focuses on advising buyers and providers of tech-related solutions.  Nathalie Moreno is a key name to note for multi-jurisdictional projects. David Willbe frequently handles corporate finance transactions for tech clients and led a team assisting XR Games on its investment from a foreign investment institution.

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Legal Developments by:
Lewis Silkin LLP

  • Negotiating the minefield of administrative decisions

    There are many situations where decisions are made by organisations such as local authorities (during the tendering process, the grant of contracts or planning decisions, for example) or professional or disciplinary bodies where a party may wish to challenge the outcome. A party with an interest in a decision may feel aggrieved by the outcome due to what appears to be a conflict of interest by those making the decision, or the appearance of bias. This may have serious consequences for in-house lawyers acting for organisations subject to such decisions, and therefore this briefing is intended to provide a general overview of the areas to consider. Challenging judicial or quasi-judicial decisions where there is a conflict of interest was considered by James Levy in a previous briefing (IHL146, p37-40).
    - Lewis Silkin LLP

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  • The legal difference between a consultant and an employee according to Nicaraguan Law

    Knowing the legal difference between a consultant and an employee is important for a company that needs to hire someone in Nicaragua or for a person interested in rendering services for a company or another person, due to the fact that the nature of the contractual relationship will determine many factors that both parties must be aware of before executing the contracting modality that will govern the relationship between them - the nature of the contractual relationship impacts on the employment benefits, tax implications and liabilities that the parties must comply with according to the law.  labor_law_in_nicaragua
  • Single director - shareholder Companies according to the Nicaraguan legal system

    What is a Single Shareholder and Director legal entity?
  • Business in Nicaragua- The Most Important Changes in the Recent Tax Reform

    In recent years, the country ŐĀs the government has been committed to improving Taxation in Nicaragua and attempting to follow the legislative model used by some of the other countries in the region. Starting January 1st, 2013, a new tax law (Law No. 822, Tax Concertation Law) came into force in and completely changed the taxation system in Nicaragua. Two years later a new law was issued by the National Assembly containing more than 80 amendments, additions and repeals (Law No 891) which came into force December 18th, 2014.