Sequoia Capital has created a guide to technical talent in Europe.
Some notes on how Nordic cities did:
Stockholm has 1.74% talent share (place 6) and Copenhagen has 1.57% (place 8).
Gothenburg with 19,100 engineers is highlighted for systems and hardware
Helsinki with 28,900 engineers is highlighted for graphics & gaming, devops, front-end frameworks and hardware.
Stockholm with 46,900 engineers is highlighted for graphics & gaming, application development, systems and hardware.