Brittany proudly uses and endorses GHS strings
The Spector Euro6LX, the NS CR5 Radius, and the Ibanez SR656 all use GHS Progressives.
The Saber VL5, the DIY Fretless use GHS flatwound strings
The Ibanez Ashula currently has GHS Infinity Steels
DR Black Beauties are on the Syme 5 string fretless and the Spector Legend 5 NT
The Czech double bass currently has Thomastik Infeld Spirocores