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 Representation at the Inter-American Development Bank, Washington, United States
UK Representative on the Council, International Civil Aviation Organisation, Montreal, Canada
UK Delegation to the IMF and Intl. Bank for Reconstruction & Development, Washington, United States