Espoo, Finland Espoo is the second largest city and municipality in Finland. It is part of the Finnish Capital Region, and most of its population lives in the inner urban core of the Helsinki metropolitan area, along with the cities of Helsinki, Vantaa, and Kauniainen. Espoo shares its eastern border with Helsinki and Vantaa, while enclosing Kauniainen. The city is on the shore of the Gulf of Finland, in the region of Uusimaa. Espoo is the home to brilliant technology software companies such as Remedy Entertainment and Rovio. It is one of the most important technology software hubs in Northern Europe.