It was founded in 1974 and was called The Basque Accordion Confederation, some years later, in 1999, change its name for: "Haupoz"- Euskal Herriko Akordeoi Elkartea / Basque Association of Accordion Players.
Currently the Association has more than one hundred members from all over Europe. Hauspoz is member of the CIA (Confederation Internationale des Accordeonistes) and also of the UNESCO (International Music Council).
Its main aim were two: improve the Accordion Education at Schools and raise the performing and pedagogic level of the accordionists. Therefore Hauspoz started to organize the First Accordion Competition, called "Guipuzcoa Competition" for Spanish performers, which was celebrated in Tolosa the 20th of April in 1975.
In 1988 the Competition got the same prestige of other European Accordion Festivals, and Hauspoz planed the "Guipuzcoa Festival" for all these young accordionists who couldn't participate in the Guipuzcoa Competition because of their performing level.
In 1933 it was created the "Arrasate - Hiria" I International Competition, which accordionists from any country took part in and whose age couldn't exceed 32 years. Nowadays that Competition has not fixed any age as maximum and it has got a great prestige because of the presence of the best accordion players.
Hauspoz, Euskal Herriko Akordeoi Elkartea, acaba de convocar la duodécima edición del Concurso Internacional de Composición “Francisco Escudero”, con el objetivo de fomentar la creación de obras para acordeón solo y en música de cámara. El concurso está abierto a participantes de cualquier nacionalidad sin limitación de edad, y la fecha límite de recepción de las obras es el 5 de septiembre de 2019.