EUROSAI has taken on a firm commitment in its collaboration and communication with the INTOSAI Regional Organisations. This cooperation has been started up progressively by means of joint conferences between the Chairs of SAIs and Auditors General, which commenced with OLACEFS in 2000, with ARABOSAI in 2006, and with ASOSAI in 2011.
In 2012 the EUROSAI Governing Board agreed in its XXXIX Meting to invite AFROSAI to take part in a regular cooperation and, as a result, a Memorandum of Understanding was signed in the beginning of 2014.

Regular Conferences are celebrated jointly by EUROSAI and OLACEFS. To date, eight Conferences have taken place (Spain, Colombia, United Kingdom, Peru, Portugal, Venezuela, Georgia and Ecuador).
A Memorandum of Understanding for the Development of the Environmental Performance Audit on Cooperation in the Amazon region and an annex to it were approved at the Conference.
The Tbilisi Statement was approved at the end of the Conference.
In the second theme, "SAI’s contribution to good governance" the following parallel working meetings were held:

EUROSAI and ARABOSAI began in 2006 a regular cooperation in the institutional and technical scopes.
This Conference was preceded by a meeting between the EUROSAI Governing Board and the ARABOSAI Executive Council to promote a closer approach between both Organisations and to discuss the terms of cooperation. (Memorandum of Understanding between EUROSAI and ARABOSAI)
The “Abu Dhabi Declaration” was adopted at the Conference, where EUROSAI and ARABOSAI got the commitment of working together to promote in their Regions the implementation of the ISSAIs in that respect and to contributing to intensifying the fight against corruption.
The Doha Statement was approved at the end of the Conference.

Cooperation between EUROSAI and ASOSAI has been launched in 2011.
A Memorandum of Understanding between EUROSAI and ASOSAI was approved at the Conference, where the main lines for future cooperation between both Organisations were set up.
The Moscow Statement was approved at the end of the Conference.

Cooperation between EUROSAI and AFROSAI was launched in 2014 with the signing of a MoU by the Presidents and the Secretaries General of both Organisations. The signing ceremony took place on the 31st January 2014 in Lisbon and marked the beginning of a new phase in the relations between these two INTOSAI Regional Organisations. This Memorandum is being developed through a framework of professional cooperation between both organisations.