The main question raised in this article is whether there are any differences between the work activities of managers in small firms primarily operating on an international market and those managing firms doing business on a domestic market. If so, what are these differences, and what do they tell us about the internationalization of small firms? The comparative method used here is based on multiple approaches including interviews, diary studies, and direct observations. The conclusions indicate that managers in small international firms are more proactive in their networking behavior, delegate operative activities and devote more time to planned strategic activities connected with their international expansion than managers in other small firms.