(1) Background: Data-driven analysis and decision-making are playing an increasingly crucial role in improving organizational sustainability. This paper introduces clear data as a new typology. Further, it explores the utility of clear data to enhance sustainability in sport by enabling informed decision-making for the provision of targeted support to all stakeholders. We propose this typology to capture transparent data across an organization that assess levels of perceived and received support in key areas as validated by stakeholders. (2) Methods: Item development, content validation, instrument reliability, and utility of a survey designed to enhance sustainability in the sports industry is described. (3) Results: The instrument validation process found a high level of agreement among expert panel members, excellent test consistency, and high test–retest reliability. (4) Conclusions: Recommendations are provided for how clear data can enhance sustainability in sport.