Recommended hotels very close to the meeting venue:
Sheraton – 5* – (~168 EUR/night)
www: http://www.sheraton.pl/poznan/
Mercure – 4* – (~96 EUR/night)
www: http://www.mercure.com/pl/hotel-3393-hotel-mercure-poznan-centrum/index.shtml
NH Poznan – 4* – (~129 EUR/night)
Another hotels – also close to the conference venue
Andersia – 4* – (~158 EUR/night)
www: http://www.andersiahotel.pl
Hotel Novotel Poznań Centrum – 4*- (~100 EUR/night)
www: https://all.accor.com/hotel/3376/index.pl.shtml
Hotel DeSilva Premium Poznań – 4* – (~72 EUR/night)
www: https://www.desilva.pl/poznan