Hi (again!)
From other answers I've found here I'm guessing this is a parenthesis issue but I can't work out which ones.
=COUNTIF({Clinical Trials : Accepted Range 1}, >=TODAY(), {Clinical Trials : Accepted Range 2}, HAS(@cell, "Blacktown"))
Trying to sort current contracts (expiry date today or later) by research site
ie: Blacktown research site has 60 currently running trials with us
Hope that makes sense.