Many studies emphasize the importance of government support in technology development. However, this study is among the first to provide empirical findings of the relevance of government roles for the performance of technology development projects. Based on earlier research and the strategic management literature, a theoretical model and hypotheses are developed to study the relevance of government roles and project teams' strategic behavior for technology development projects. Our results show that government championship is an important positive factor for the performance of technology development projects. Government championing behavior overcomes regulatory barriers, enthusiastically promotes the technology's advantages, and gets key decision makers involved. As such, government championship has more impact than government financial/technical assistance on both project performance and benefits to customers. The findings also show that both the proactiveness and defensiveness dimensions of project teams' strategic behavior contribute positively to project performance and benefits to customers. The paper concludes with implications for practice: From a policy perspective, government should extend its technology policies by taking on the role as a champion, while companies should invest in building professional relations with champions in government.