Cultural responsiveness is critical to providing high-quality behavior analytic services, particularly when providers and recipients have different cultural backgrounds. The purpose of this study was to systematically replicate and extend (Beaulieu et al. (2019) Behavior Analysis in Practice, 12(3), 557–575) by investigating the diversity among applied behavior analysis (ABA) service providers and service recipients in Ontario, service providers’ training and experiences in working with diverse families, and service providers’ and recipients’ perceptions of behavior analysts’ cultural responsiveness in practice. Results from 428 participants suggest that service providers and recipients in Ontario differ in demographic characteristics; service providers report having little training in how to serve diverse families; and although service recipients rate providers’ skills relatively positively, there is room for improvement. Results suggest a path forward for behavior analysis that includes education and training in cultural responsiveness as well as encouraging and fostering a bidirectional relationship between behavior analysts and the families they serve.