I searched up the group that's been putting them up, and of course, their domain is not an Irish one, it's in US, tempa, Arizona. They have such connections as the Koch brothers and Saudi Arabian princes funding them.
Oh and they're also connected to GB News. Y'know, for a group of people who accuse Jewish people of forming secret cabals, they sure do love forming secret cabals.
There is no reason for a US company, with funding from US and Saudi Arabian billionaires, with ties to corporate media, to be putting up signs in Ireland.