Kleanthis Demosthenous


Meet one of our founders and managing directors, Kleanthis Demosthenous. He is a practicing lawyer since 1999.

Kleanthis is a partner at the boutique law firm of Argyrou & Demosthenous LLC.

Since 1999 he has been active in the field of litigation and consultancy, initially working with one of the most distinguished law firms in Cyprus. Since 2001, he manages Argyrou & Demosthenous LLC, with the assistance of experienced and qualified associates.

Mr. Demosthenous is a barrister in the courts of the Republic of Cyprus acting for both local and foreign commercial clients and individuals in a wide range of disputes. He has extensive courtroom experience and represents both claimants and defendants across an expansive range of fields including breach of 
contract, shipping, construction, real estate and planning, corporate, contentious probate, banking and finance, and tort. 

During his many years in the legal profession, he has acquired vast judicial experience and a high level of knowledge in the fields of civil, commercial, and criminal law.

He handled complex and unique cases, some of which led to judicial decisions that shaped the Cypriot jurisprudence.

He is distinguished for his excellent negotiating skills and the prompt and successful resolution of all types of disputes for his clients.

Moreover, Kleanthis has significant experience in non-contentious work, in acquisitions and disposals of residential and commercial buildings concerning freehold and leasehold interests, and in complex leasing transactions. He provides advice on initial procurement, and property documentation, in the drafting and negotiation of all forms of construction documentation including building contracts, consultancy agreements, collateral warranties, performance bonds, and guarantees.

His depth of knowledge is tremendous, highly intellectual, and provides understated yet assertive advocacy.

He is particularly noted for his ability to quickly get to grips with disputes raising complex factual and technical issues which require a sound grasp of expert evidence and mastery of detail. Mr. Demosthenous is a mesmerising and enchanting advocate who is wholly and resolutely committed to protecting the interests of his clients. He has an extraordinary ability to listen to clients and consider the points of view of others before providing any advice and is very sound in his judgment. He is also well-known for his intelligence, calmness, and as someone who clearly has the command of the court.

Kleanthis practices in all aspects of commercial litigation and arbitration, including banking and finance, commodities, conflict of law, and jurisdiction disputes. Kleanthis is an expert lawyer in all forms of interim injunctions, including freezing orders and anti-suit injunctions. He also has extensive experience in fraud, corruption, money laundering, and confiscation. He is known for his thorough and conscientious approach.

He additionally advises on company law, share purchases, shareholder/director relationships (such as shareholders’ agreements, options, articles of association), partnerships, and other commercial contracts.

Not only his legal knowledge, but his financial knowledge is what makes Mr. Demosthenous distinguish in court and protect business clients. He has a set of skills and knowledge that allows him to make informed and effective decisions with the combination of his in-depth legal knowledge to protect their business and individual clients.

Noteworthy, Mr. Demosthenous served as a director on private and public companies and was a member of the Board of Directors of USB Bank Plc.


  • 1984-1988: studied Business Administration at the University of Macedonia (Former Higher Industrial School of Thessaloniki)
  • 1988-1993: Law School of the Aristotle University of Thessaloniki, Greece

Member of :

  • 1993: Registered member of the Cyprus Bar Association

  • 1993: Registered member of the Nicosia Bar Association

  • Member of the Board of Directors of USB Bank Plc.

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