This study explores which networks are beneficial for gaining resources for firms' internationalization. Little is known about firms' use of organizational, personal, and intermediary networks to gain access to resources for internationalization. Firms are seeking resources through their organization's relationships (organizational networks) and individuals' personal contacts (personal networks). Governmental and industry actors are implementing networks to promote international growth and act as an intermediary between business actors (intermediary networks). We conduct in-depth interviews with firms and representatives for intermediary networks complemented with a survey. The findings reveal which resources are accessed through the different networks. We find organizational networks provide considerable access to most resources (except financial resources) that are beneficial for internationalization, whereas intermediary networks provide access to reputational, human, and market resources. Personal networks primarily provide access to human resources. This study contributes to theory by giving a more fine-grained understanding of how different types of networks give access to different resources valuable for internationalization. © 2019 Wiley Periodicals, Inc.