EBMM and Rickenbacker sell an awful lot of guitars. I’m not so sure about Carvin/Kiesel or G&L but I’ve certainly seen an awful lot of their guitars around, too. I suspect there are a lot more Warwick basses sold in the US than Framus guitars but I don’t know if that’s true in Europe. The bottom line is that there are far more guitarists than bassists so any company that’s known for making both is likely to sell more guitars. The only likely exceptions would be companies that started as bass manufacturers but also make a small number of guitars like Sadowsky, Elrick or Fodera. Heck, even Carl Thompson has made a few guitars but I don’t think anybody would categorize him as a guitar maker.