I don't think that's at all true. There are many large organisations that spend a significant amount on staffing and marketing, masquerading as charities. The state-sponsored ones are some of the worst, as they're recycling taxpayers' money to lobby the governments that pay them, with a revolving door of lucrative executive and lobbying jobs keeping it all afloat.

Some EU charities are huge. The Red Cross has branches everywhere in the EU. Greenpeace's main office is in Netherland. Those are two massive brands.