As the “dual carbon” goals and sustainable development objectives advance, the shift towards economic greening, low-carbon development, and high-quality growth is becoming crucial. A major issue is how to rapidly grow “green” sectors like energy efficiency, environmental protection, clean production, and renewable energy, while also enabling the low-carbon transformation of traditional industries. Finance, vital to the real economy, plays a key role in resource allocation and risk management, supporting sustainable industrial development and overall economic transformation. This paper by IIGF experts explores the IIGF Green and Brown Revenue Database for listed companies, created by the International Institute of Green Finance at Central University of Finance and Economics. It examines the database’s applications in research and market practice, offering insights for academic studies, financial instrument development, and financial product innovation.