PURPOSE: To investigate the characteristics of studies that included underrepresented speech-language pathologists (SLPs) as research participants. METHOD: A scoping review was conducted using the principles of the transformative research paradigm, which promotes the meaningful involvement and empowerment of marginalised groups. Co-production with minority SLPs was facilitated. The search strategy was run in six databases, and the transformative checklist used for analysis. RESULT: Twenty studies were included. Bilingual and male SLPs were among the most commonly included underrepresented SLPs. Most studies were conducted in the USA (n = 16), and used survey methods. The studies provided valuable insights into the experiences and practices of underrepresented SLPs, and yielded practical solutions to foster inclusion and diversity in the profession. Most studies demonstrated a transformative potential, but the active engagement of underrepresented SLP participants in the research cycle was rarely demonstrated. CONCLUSION: This review calls for a shift in how and why research is conducted when including underrepresented SLP participants. Through the lens of the transformative research paradigm, we can rethink the broader aim of research and the role of researchers and participants. Using research as a platform to give visibility, voice, and agency to minority groups can stimulate change and equity in the profession.