Do Guaranteed ISAs exist? (ignore cash ISAs)

lisyloo

I don't think the Nationwide one has the double guarantee, but why don't you search with google?
You should be able to find most high st offerings there.

lisyloo

BTW - you need to look very carefully at the protection.
There was a scandal on this recently.
Because it's not savings then some schemes are not (or were not) actually protected at all from insolvency.
So be careful.

They protect from losses if the uderlying investments go down and the bank is still in business, but you need to check on whether it's really safe.