Ok thanks there are females only Taxi firms.
One of the ones mentioned operates as a 'car club' so gets around the sex discrimination laws that way, how does the other one manage it?
I can see a hell of a row if someone tried to operate a Male only taxi or a white people only taxi!
The obvious answer is still to just ask the taxi company for a lady driver. My next door neighbour is a lady taxi driver and customers often ask for her, the taxi firm have 8 female drivers so there is always one available.