However, the membership is worldwide, predominantly European and North American, but also with members from central and southern America, Australasia, Africa and Asia.
Originally, the voluntary association was mainly for C programmers, but it has expanded over time to include all programming languages, especially C++, C#, Java, Perl and Python.
[1] It attracts speakers from the computing community including David Abrahams, Andrei Alexandrescu, Ross J. Anderson, James Coplien, Tom Gilb, Kevlin Henney, Andrew Koenig, Simon Peyton-Jones, Eric S. Raymond, Guido van Rossum, Greg Stein, Bjarne Stroustrup (the designer and original implementor of C++), Herb Sutter and Daveed Vandevoorde.
ACCU provided financial sponsorship of meetings in the UK for both the International Organization for Standardization (ISO) C programming language working group and the ISO C++ working groups and helped finance travel to ECMA meetings in mainland Europe.
Mentored groups have included Effective C++, Python, software patterns, functional programming and XML.