PurposeThis paper aims to analyze the impact of green people management (GPM) practices on the development of organizational competencies for sustainability in Brazilian publicly traded companies.Design/methodology/approachTo validate the proposed model and hypotheses, a quantitative-descriptive methodological strategy was adopted, empirically investigated through a survey with publicly traded companies listed on B3 S.A. (Brazil, Stock and Exchange). The collected data were analyzed using exploratory factor analysis and multiple linear regression.FindingsThe results indicate that green ability has a positive impact on the development of strategic and systemic competence for sustainability. Green motivation has a negative impact on the development of systemic and economic competencies for sustainability. Green opportunity positively impacts the development of strategic, systemic and economic competencies for sustainability.Practical implicationsIn terms of academic contributions, this study allowed for an empirical and comprehensive evaluation of variables related to GPM practices and their impact on the development of organizational competencies for sustainability, in line with the research agenda of the management field, focusing on outcomes for individuals (employees) and organizations.Originality/valueThe identification and possible implementation of certain GPM practices as a way to boost recruitment, selection, evaluation, rewards, recognition and involvement of individuals with green values and objectives, minimizing environmental and societal impacts, represent the main managerial and social contribution.