1. Novum Winters Hotel - Am Gendarmenmarkt https://www.winters.de/de/hotels/city/berlin/berlin_mitte_gendarmenmarkt
Rates as of 59 EUR per room per night (please note that due to high occupancy, there is no special conference rate)

2. Hotel NH Berlin Mitte - https://www.nh-hotels.com/hotel/nh-berlin-mitte Rates as of 112 EUR per room per night (please note that due to high occupancy, there is no special conference rate)

3. Hilton Berlin - https://www3.hilton.com/en/hotels/berlin/hilton-berlin-BERHITW/index.html Rates as of 146 EUR per room per night (please note that due to high occupancy, there is no special conference rate)