The Australian Esperanto Association is the national Esperanto organisation in Australia and organises a yearly congress in different cities throughout the country. They also maintain a list of local associations that meet regularly – find one near you!
The global head of the Esperanto movement, based in the Netherlands, the UEA organises the Universala Kongreso which is held in a different country each year. They also publish Esperanto magazine which is distributed to members worldwide.
TEJO is the worldwide esperanto youth organisation, a section of the UEA. They also organise a yearly youth congress and have a magazine aimed at younger Esperantists.