Burretone Guitars is a one-man luthier shop run by Sokratis Valeras out of Karditsa, Greece, producing custom handcrafted electric guitars and basses. The workshop builds vintage-inspired instruments with a focus on both playability and visual character, with many models featuring heavy relic finishes. Each instrument is made to order, with builds typically taking one to three months to complete. Burretone uses quality components from makers like Seymour Duncan, Tonerider, Alan Entwistle, Gotoh, Wilkinson, and Schaller across its builds.

The lineup includes Telecaster-style and Precision Bass-style builds in various tonewoods including korina, maple, cherry, and beech, as well as Jazz Bass-style instruments. Among the more distinctive offerings is the Castaxe, a series of aluminum-bodied electric guitars featuring a single cast aluminum piece that runs from the bridge through the neck to the headstock, with a wooden fretboard glued on top and a wooden body bolted to the aluminum core. Burretone also offers a more affordable "K.B." line of guitars and basses assembled from parts with key upgrades to the fretboard, neck pocket, bridge, nut, pickups, and tuners.

The PS 51 Tribute, a relic'd all-maple bass paying homage to the original 1951 Precision, was featured as No Treble's Bass of the Week. Burretone sells internationally through its website and Reverb shop.