Zyskowicz was chairman of the Finnish National Coalition Party's (Finnish: Kansallinen Kokoomus) parliamentary group from 1993 to 2006 and has been a member of parliament for the National Coalition Party since 1979.
Zyskowicz menjadi ketua kelompok parlementer Partai Koalisi Nasional (Finlandia: Kansallinen Kokoomus) Finlandia dari 1993 sampai 2006 dan telah m3njadi anggota parlemen untuk Partai Koalisi Nasional sejak 1979.