The ECA is a member of a number of INTOSAI committees and working groups, and through this work makes an active contribution to the development of the public audit profession worldwide.
INTOSAI (International Organisation of Supreme Audit Institutions) is the professional organisation of SAIs of countries that belong to the United Nations or its specialised agencies. It comprises 191 full members (of which the ECA is the only supranational body) and four international organisations with associate membership, and is listed as a support organisation of the United Nations.
Since 1980 the ECA has been represented at each triennial INTOSAI congress, on many occasions taking responsibility for the congress theme. Since becoming a full member of INTOSAI in 2004, the ECA has participated actively in the subcommittees developing professional auditing standards.
The ECA is a founding member of EUROSAI (European Organisation of Supreme Audit Institutions), a regional INTOSAI grouping of around 50 members that was established by the European SAIs and the ECA in 1989. The ECA is actively involved in many EUROSAI working groups and task forces and became a member of its Governing Board in 2011.
The other Regional INTOSAI groupings are, AFROSAI, ARABOSAI, ASOSAI, CAROSAI, OLACEFS and PASAI.