PurposeDrawing on human capital (HC) and social capital (SC) as well as the Jack-of-all-trades theory, this paper aims to clarify the relationship between international assignments (IAs) of employees and their entrepreneurial intentions. The study proposes that such IAs provide specific environmental features which may enable employees to build up diverse skills and network relations conducive to entrepreneuship.Design/methodology/approachThe authors collected data using an online survey, targeting professionals and managers in Germany and Switzerland. They used 223 complete responses. Before data collection, they ensured the suitability of their questionnaire by employing well-tested scales and consulted independent experts in survey design and methodology. They tested their hypotheses by applying multiple mediation modeling.FindingsAs hypothesized, the authors find empirical evidence that diverse skills and network relationships as well as poor career prospects, positively mediate the relationship between IAs and entrepreneurial intentions of employees.Research limitations/implicationsWe applied simple random and the snowball sampling method. Our approach involved the use of headhunters, international employers and relocation companies as multipliers.Practical implicationsOur results have practical implications for employees and employers. Employees on international assignments can proactively pursue opportunities in order to utilize the acquired experiences and resources for taking up entrepreneurial activities. Employers can try to retain these employees to facilitate (international) corporate entrepreneurship.Originality/valueTo the best of our knowledge, this is the first empirical study to highlight the entrepreneurial ambitions of international assignees. It thus provides initial insights into this topic.