Knowledge flow is among the most crucial social processes triggering innovation and regional development. Intercompany knowledge flow among Polish information technology (IT) service small- and medium-sized enterprises (SMEs) is studied in this paper. The main aim is to identify market and technological knowledge flow channels and their spatial scales. Based on information derived from computer-assisted telephone interviews (CATIs), in-depth interviews (IDIs) and data analysis (correspondence analysis and comparative study of spatial structures of knowledge flows), the geographical proximity paradox is tested. It is argued there is a need to move beyond the local buzz–global pipeline dichotomy. Knowledge is acquired at various spatial scales, which enhances the sustainability of the knowledge acquisition process and makes companies, regions and cities more resilient. The multiscalarity of knowledge flows is the most remarkable in the case of private contacts with colleagues from schools or previous workplaces. Spatially diversified study and job experiences of entrepreneurs goes along with return migration. In earlier Central and Eastern European studies, knowledge flow was often defined by the dominance of national (domestic) flow over weak global interactions. Trade relations, especially those occurring on an international scale, represent the most important channel of market and technological knowledge flow for the surveyed companies. The second most important channel is the employment of specialists, which is by far the most frequent and most important on an interregional scale. Due to the small size of surveyed companies, foreign specialists are used least frequently. Instead of using regional business events as a vehicle for knowledge flow, representatives of the IT service sector prefer to attend domestic meetings. In the case of Polish IT service SMEs, the paradox of geographical proximity is better described by the dominance of national over global knowledge flow.
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