Everyone who has money to spend to influencing politics this way. I personally don't think its some kind of shadow cabal. Its many people/groups/organizations with aligned interests doing these things.

Organization isn't the issue that is of course perfectly normal. But stuff like handing out printed signs, protestors posing for photos in a way that makes it look like the crowd is much larger than it actually is. These kind of things aren't necessary if there is a real significant % of people unhappy enough to go protests. There are also faces known that travel from protest to protest. It's of course their right to do so but it seem strange nonetheless. Maybe they are just filthy rich and have no hobbies or maybe they do in fact get paid and are part of an organization that lets them jet around for free to be a protest groupie.