How should firms develop multigenerational sustainable stakeholder ecosystems through business strategic management expertise, theories, ideas, perspectives, and knowledge that can support a strongly sustainable green circular economy after COVID-19? Who should lead this revolution and transformation so that business strategies become more trustworthy, informative, stakeholder-friendly, and noteworthy to all stakeholders, especially after This study focuses on furthering our understanding of what makes multigenerational business stakeholder ecosystems sustainable in a post-pandemic world. This study hypothesized that four key strategies for building and maintaining sustainable stakeholder ecosystems include innovation and entrepreneurial ideas, diverse and accountable executive leadership, cultural and social responsibilities, and customer satisfaction.The findings suggest that the ability to effectively judge and evaluate individual and organizational outcomes and performances has many multigenerational variables and determinants associated with their extraneous and non-extraneous environments that make assessing their accurate productivity challenging. In terms of Upper Echelons Theory, this study showed several antecedents and ethical elements to building a green circular economy and sustainable systems in business, and their impacts on stakeholders' ecosystems.