According to the ranking of
http://www.zdrowieintymne.pl/zdrowa-kob ... eplodnosci three best fertility clinics in Poland:
1. Bocia Bialystok, success rate 45%
2. Invicta success rate 50%, PGD, PGS NGS, eggs freezing. All prices are in their web site
3. Criobank/Kriobank success rate: age till 30-61.5%, 30+-37.6%
I have no info on Criobank, but Bocian and Invicta are experienced with international patients.