UK has a permanent office – often called a Mission or Delegation - at over 20 international and European organisations such as the United Nations, the Council of Europe, NATO and so on. The details and links are listed in alphabetical order below.
UK Delegation to the Organisation for Economic Co-operation and Development, Paris, France
UK Delegation to OSCE, Vienna, Austria
UK Permanent Representative, Organisation for the Prohibition of Chemical Weapons, The Hague, Netherlands