Three fourths of Finnish business enterprises have relationships that are deeper than those associated with normal market transactions, i.e., they are involved in inter-organizational networking. Regionally networking is more commonplace in North Savo, North Karelia/Kainuu, Central Finland and Lapland/Northern Ostrobothnia. Connections to other firms is the most prevalent and qualitatively most important type of networking. Net-working is predominantly a local phenomenon, particularly when it comes to firms partner-ships with educational and research institutions as well as public bodies. Networking may be associated with better firm profitability in low-tech industries. Participating in a national cluster may be associated with firms better growth prospects. In the absence of functioning local markets for some productive inputs, being engaged in inter-organizational networking may be a necessary conditions for firms survival.