Hanami (2006-current - mostly they're translating japanese cook books and guides and then manga)
Japonica Polonica Fantastica (JPF or J.P. Fantastica - 1996-current - the oldest manga publisher company in Poland. They focus on publishing classic titles like Sailor Moon, Naruto, Bleach etc.)
Kotori (2012-current)
Studio JG (2007-current - the biggest publisher in Poland that owns the only manga chain-shop Yatta.pl)
Osiem macek (formed in 2015 and owned by Studio JG, specialises in hentai and etchi)
Waneko (1999-current - the second biggest publisher)
Akuma (2019-current - specialises in hentai and etchi)