A company called Tigerfly used to operate a Tiger Moth commercially from Booker until half a dozen years ago.
I think that there's still a Dragon Rapide being thus operated at Duxford.
I did some work about a decade ago to get an N3N-3 being operated commercially for tourist flights from Sandown, and I believe it was for several years.
Aren't there still AN2s being used for crop spraying in Russia?
G