Happy to confirm new speakers:

Tony Gallippi from http://wwww.BitPay.com (also contributing sponsor)
Marek Palatinus from Trezor http://www.bitcointrezor.com/
Maciej Trębacz. from Bitalo http://www.bitalo.com/
Michael Gronager from Payward http://www.payward.com

30 days away  

http://www.theconference.eu