Complex sentence: Organizers are offered a free place to list their events and FestivalFox seeks invite and attract all events in Europe big or small to one portal so that they can connect to their Audience better.
Split into simpler sentences: Organizers are offered a free place to list their events as FestivalFox seeks to invite and attract all events in Europe, big or small. The goal is have one portal so that events can connect to their Audience better.