Higher Education Institutions (HEIs) play a critical role in fostering diversity and inclusivity while managing knowledge effectively. However, the integration of Diversity Management (DM) and Knowledge Management (KM) in HEIs remains a fragmented process, influenced by institutional size, technological infrastructure, and strategic alignment. This study explores the presence of key diversity management elements within Italian university PIAOs (Integrated Plans of Activities and Organization), using a knowledge management lens to assess inclusivity, collaboration, intersectionality, and technology integration. Through content analysis, the study identifies significant disparities in diversity and knowledge strategies among universities of different sizes. Larger institutions tend to leverage AI-driven recruitment systems, open-access repositories, and interdisciplinary collaboration platforms, ensuring a scalable and technology-enhanced approach to diversity and knowledge dissemination. Mid-sized universities prioritize regional engagement, faculty-student mentorship programs, and interdisciplinary teamwork, adopting structured but less technology-intensive approaches. Smaller universities, by contrast, rely more on community engagement, face-to-face collaboration, and localized mentorship models, often lacking the resources to implement large-scale digital transformation. The findings reveal that institutional size directly influences the extent of technology integration in both diversity and knowledge strategies. Larger universities demonstrate advanced digital ecosystems, while mid-sized and smaller institutions exhibit resource constraints that limit their ability to implement AI-driven and automated solutions. Additionally, intersectionality remains an underdeveloped dimension in most institutions, with policies often failing to address the complexity of overlapping identities, resulting in generic rather than tailored inclusion strategies.This research underscores the need for more integrated and technology-supported diversity management frameworks across HEIs. AI, digital platforms, and structured knowledge-sharing models can enhance inclusivity, bridge disparities, and ensure that diversity policies are effectively embedded within knowledge systems. The study calls for policy reforms, targeted investments, and institutional collaborations to foster an equitable and technology-driven higher education environment, ensuring that diversity and knowledge management serve as complementary pillars for institutional growth and innovation.