To address the challenge from global warming, the UNFCCC has given rise to several initiatives to channel financial capital into decarbonization efforts. Among investors, demand increasing for investment vehicles that offer both environmental sustainability as well as economic performance benefits. We aim to design and implement a novel indicator for an SME's decarbonization potential - the lean-green alignment (LGA) indicator. In this Anschubsprojekt, we start constructing a top-down LGA indicator based on knowledge from an expert panel and analysis of existing management-level survey data by KOF.