You can find information on accommodation in Helsinki from Visit Helsinki website.
The conference venue is located in the city center. For some hotel options near the venue, please see the following list:
Hotel Scandic Simonkenttä
Simonkatu 9, 00100 Helsinki
Holiday Inn Helsinki City Centre
Elielinaukio 5, 00100 Helsinki
Sokos Hotel Presidentti
Eteläinen Rautatiekatu 4, 00100 Helsinki
Radisson Blu Plaza Hotel Helsinki
Mikonkatu 23, 00100 Helsinki
Omena Hotel Yrjönkatu Helsinki (self-service hotel)
Yrjönkatu 30, 00100 Helsinki
Hotel Arthur
Vuorikatu 19, 00100 Helsinki