The Universal Esperanto Association (UEA) is the largest international organization that promotes Esperanto.

The Universal Esperanto Association was founded in 1908 in Paris, France.

The Esperanto Academy (Akademio de Esperanto) is the official language academy of Esperanto.

The Esperanto Academy was founded in 1905 in Paris, France.

The World Esperanto Youth Organization (TEJO) is the international youth organization for Esperanto speakers.

The World Esperanto Youth Organization was founded in 1938 in London, United Kingdom.

The World Esperanto Workers' Organization (SAT) is the international workers' organization for Esperanto speakers.

The World Esperanto Workers' Organization was founded in 1921 in Vienna, Austria.

The World Esperanto Teachers' Organization (ILEI) is the international teachers' organization for Esperanto speakers.

The World Esperanto Teachers' Organization was founded in 1947 in Bern, Switzerland.

The World Esperanto Writers' Organization (PEN) is the international writers' organization for Esperanto speakers.

The World Esperanto Writers' Organization was founded in 1928 in Paris, France.

The World Esperanto Musicians' Organization (MEMO) is the international musicians' organization for Esperanto speakers.

The World Esperanto Musicians' Organization was founded in 1952 in Paris, France.

The World Esperanto Sports Organization (SES) is the international sports organization for Esperanto speakers.

The World Esperanto Sports Organization was founded in 1946 in Paris, France.