The institutional perspective is becoming an increasingly important approach for explaining sustainability behavior in an international context. Drawing on insights from institutional theory and natural environment literature, we propose that the utilization of international firms’ technological intensity to generate green innovations is conditioned by their home-country institutional profile. This article analyzes a panel of 5,024 environmental patents belonging to 80 international firms during the period 2005 to 2009. The results show that firms from countries with environmental institutional weakness reinforce their utilization of technological capabilities to generate environmental innovations in international contexts. Our results support the previous literature regarding the influence of technological intensity on the development of innovations, and we add new evidence that considers the moderating impact of the home-country institutional profile.