Historically, Israeli computer scientists have been able to apply and win ERC grants. That said, I have not checked if anything has changed for the UK in this regard, hence why I am curious.
AFAIK, unless this changed British scientists can apply to Horizon Europe funding, which includes ERC grants. However, there is some uncertainty as this is related to the trade and cooperation agreement, which looks a bit shaky right now.
One of the problem was that the British government does not keep its word, so people are wary of putting British colleagues only for their funding to get pulled at the last minute because lord Frost wants to annoy the EU.
One of the problem was that the British government does not keep its word, so people are wary of putting British colleagues only for their funding to get pulled at the last minute because lord Frost wants to annoy the EU.