About SIAA

Important Announcement (Sept 2014)

SIAA and The SROI Network are coming together to create an ‘international force for change’. Find out more information here.


The Social Impact Analysts Association or SIAA is an international professional body for social impact analysts. SIAA supports and represents its members and the wider social impact analysis field on a global scale. SIAA believes that by building an active international community of social impact analysts social purpose organisations will have access to the support they need to create positive social impact.

SIAA’s members are passionately committed to developing more effective social purpose organisations and increasing positive social impact through their work.

Our Vision

A world in which social purpose organisations use social impact analysis to set strategy and deliver on their core mission.

Our Mission

To build an active international community of social impact analysts, who are supported, represented and skilled practitioners, able to develop more effective social purpose organisations and increase positive social impact.

Our Theory of Change


Our History

SIAA was launched in December 2011 following four years of extensive consultation within the voluntary sectors in the UK, Europe, and North America. We are supported by a consortium of funders including the Adessium Foundation in the Netherlands and Bertelsmann Stiftung in Germany, with close support from New Philanthropy Capital in the UK and the SROI Network.