Builders (luthiers) of custom electric or semi-acoustic guitars, hand-crafting unique instruments as opposed to mass production techniques used in factories.
Companies producing electric guitars should be submitted to Manufacturers or one of the higher manufacturer categories if they also offer acoustic guitars and/or other instruments.
Sites which mainly offer shopping facilities should be submitted to Shopping. Under no circumstances will a site be listed in both - here and shopping.
People mainly offering repair or customizing services should submit their site to Repair.