While some researchers find that business planning can improve the growth and survival of new ventures (Gruber, 2007), others find that successful entrepreneurs improvise and effectuate rather than plan (Dew, Read, Sarasvathy, & Wiltbank, 2009). Recent research suggests that these findings are not in conflict, rather, business planning is simply less important for more experienced entrepreneurs (Dencker, Gruber, & Shah, 2009). Extending research on entrepreneurial intentions (Krueger, Reilly, & Carsrud, 2000), we investigate if this applies to earlier-stage entrepreneurial situations and, in particular, nascent-stage technology commercialization intentions of scientists.