The study examines the theoretical and empirical frameworks of sustainability transition in SMEs, focusing on sustainability strategy, disclosures, and business impact through the lens of stakeholder theory. A systematic literature review methodology was applied using the Scopus database, complemented by keyword and co-occurrence analysis with VOSviewer to explore the theoretical structures of the topic. The analysis identified five theoretical clusters related to strategy and innovation, circular economy and supply chains, competitiveness and resilience, climate change and finance, and sustainability reporting as main drivers of sustainability transition in SMEs.