WaterAid is an international NGO that has adopted a rights-based approach to reducing inequalities in WASH. WaterAid's journey to mainstream equity and inclusion in its work began in 2005. Since then it has gained valuable learning about what activities and approaches can propel an organisation along this journey and what can inhibit progress. This paper structures WaterAid's learning under four stages of an organisational mainstreaming continuum for equity and inclusion, and includes recommendations for organisations