Helsinki
Per Wikipedia:
The Helsinki metropolitan area is the northernmost urban area on Earth with a population of over 1 million people, and the city is the northernmost capital of an EU member state. Altogether 1.3 million people live in the Greater Helsinki area, which includes the aforementioned cities and 9 suburban satellite towns. Approximately 1 in 4 Finns live in the Greater Helsinki area.
Helsinki is Finland's major political, educational, financial, cultural and research center. Helsinki is also an important regional city on the Baltic Sea and northern Europe. Approximately 70% of foreign companies operating in Finland have settled in the Helsinki region.[6]
[Complete City Rankings]

