This study constructs and validates a theoretical framework that focuses on the correlation between internal control systems (ICS) and the sustainable green innovation ecosystem (SGIE). Furthermore, it aims to investigate the role of environmental management accounting data analytics (EMADA) as a mediator in the relationship between ICS and SGIE. The current study utilized a methodological approach consisting of three components namely a literature review, expert interviews, and a self-administered survey. The study used structural equation modeling to analyze the proposed model, which was constructed using statistical data gathered from a cross-sectional survey of 583 accountants working in public sector organizations (PSOs). The acquired observations underscored the interdependence and mutual reinforcement of the proposed dimensions. These observations provided guidance for PSO leaders to recognize and take advantage of chances to enhance their effectiveness in the green innovation implementation journey. They also helped in developing strong strategies to efficiently steer their digital transformation process. The work's detailed findings were crucial in enabling policymakers to establish rules and regulations linked to digitalization and green innovation.