Crises like the COVID-19 pandemic or climate change can significantly disrupt supply chains. Thereby, they typically challenge companies far beyond what they typically prepare for. In severe cases, authorities take over responsibility for the population's supply of essential goods, involving public resources. Companies can be valuable, central partners in these efforts. In this context, we empirically investigate German companies' experience and motivation regarding emergency collaborations with authorities, guided by the central question: Under which circumstances would companies participate in public-private emergency collaboration?