Doublechecking the Green position I found a neat rundown of the French parties' stance on Europe
here; what's more, they have one for Denmark too.
Same pattern.
In Denmark, from left to right,
- the small, radical "United Left" is against (against the EU, period);
- the slightly larger Socialist People's Party is against;
- the Social-Democrats, long the dominant party in Danish politics, are in favour;
- the small Social-Liberal Party is in favour;
- the right-wing Liberal Party, now the country's largest, is in favour;
- the smaller Conservative People's Party is in favour;
- the small Christian Democrats are against;
- the far-right (and fairly large) Danish People's Party is against.
Denmark had a large anti-EU movement that impacted earlier referendums; the People's Movement Against the EU has netted a clear victory in a previous European election. Dominated by the populist right, but supported by the populist left as well, it left the more "technocratic" traditional parties in the middle with the EU banner.