U.K.: Anti-Fascist Action (AFA)
https://en.wikipedia.org/wiki/Anti-Fascist_Action
Sweden: Antifascistisk Aktion (AFA)
https://en.wikipedia.org/wiki/Antifaschistische_Aktion#Sweden
Germany (where Antifa started): Antifaschistische Aktion
https://en.wikipedia.org/wiki/Antifaschistische_Aktion
Antifa operates in Germany, Netherlands, Sweden, Denmark, Norway, Australia, Canada, the UK and most recently, the United States of America.
Sure, but acid throwing in the UK is street thug MO, not Antifa (- at least so far!). In the rest of Europe that acid throwing thing doesn’t happen that much, if at all. Like “glassing”, a UK phenomenon.