This article examines if a ‘structural competency’ approach can help with understanding and addressing deficiencies in identifying potential exploitation victims among marginalised communities. Through a case study of multi-agency work within a unitary English local authority area, it explores how safeguarding and anti-modern slavery systems recognise exploitation cases among Roma communities. The concept of ‘structural competency’ illustrates how culture and structure can jointly create stigmatisation and inequities in safeguarding. We argue that ‘structural competency’ highlights structural inequities and institutional discrimination in anti-exploitation and safeguarding practices, in contrast to the commonly adopted approach of ‘cultural competence,’ which can exacerbate the othering and risk of exploitation for marginalised communities.