They do include a LOT of people from doc-dem parties in EU member states. https://en.wikipedia.org/wiki/European_People%27s_Party

Not sure if you know how the EU "parties" work but the members aren't directly elected like in other places. They simply have a bunch of chairs that get filled with people from member state parties that applied to be part of that EU level organization. We most likely shouldn't even call them political parties.