Women and girls’ organisations (WGOs) are a fundamental part of the voluntary and community sector (VCS) and wider society. They have a unique history and development as a sub-set of the wider VCS and have been pivotal in meeting important needs for women and girls, yet existing analysis of the VCS using data from the Charity Commission for England and Wales (CCEW) has not previously focused on WGOs. The purpose of this paper is to present a feminist approach to identifying and classifying WGOs utilising data from the CCEW register. The paper provides a detailed exploration of the methodological approach and argues that such an approach to compiling and analysing datasets is both necessary and advantageous in exposing areas of power and contestation. The paper provides an original overview of the scope of WGOs in England and Wales between 2008 and 2018 and also demonstrates benefits that can be applied in other classification work within the field.