Which company makes Specsavers hearing aids?

I’m fairly sure I’ve seen Phonak/Sonova and Signia mentioned here and elsewhere. If you look at the apps they use for smartphone integration you can get a good idea of who they’re working with.

It’s true, Speccies don’t manufacture their own gear.

You’ll get a white label product from one of the big guys. They also sell the actual full blown products alongside. If your preference is a ‘sheep-dip’ kind of service, then crack on.