Purpose This study aims to investigate key resilience antecedents of Swiss energy companies amid geopolitical tensions and environmental crises. Design/methodology/approach The authors combined interviews with experts and content analysis of 98 annual reports. Findings The analysis identified three key clusters of resilience factors: resources, strategy and capacity building. Among these, human resources, procurement strategies and collaboration with external stakeholders were the most critical. The findings indicate that large firms tend to emphasize long-term capacity building, whereas smaller companies prioritize immediate resource needs. Additionally, the legal status of the organization has a limited impact on resilience. Originality/value The authors contribute to the literature on organizational resilience by highlighting the importance of bundling resilience factors into a dynamic capability framework.