I find it incredible that cold calling works for you; everywhere I've ever worked in the UK and across Europe, cold-callers get short-shrift - with no exceptions.
Account-based selling has a few reps focused on a few key decision makers within an organization. It works exceptionally well for mid-market and enterprise software.
I've worked almost exclusively in large enterprises - the attitude towards cold-callers has ways been the same.
I and others I know have had cold-callers using scummy tactics, such as claiming to know the decision maker from way back, claiming they lost their number etc - but these are so old nobody I know falls for them anymore.
Account-based selling has a few reps focused on a few key decision makers within an organization. It works exceptionally well for mid-market and enterprise software.