Hapas Guitars is a small custom guitar workshop based in Berlin, Germany, founded by Robert Sola in 2010. The company specializes in extended-range electric guitars, building 6-, 7-, 8-, and 9-string instruments aimed at modern progressive and metal players, with an emphasis on multi-scale and baritone configurations, scarf-jointed headstocks, and premium hardware such as Hipshot, Evertune, and ABM components.

The catalog includes models such as the Vyrn, Siren, Judge, and the headless Turandot, alongside a custom-order program that lets customers specify woods, scales, and electronics. Hapas also designs and produces its own in-house pickup line — including models like the Nightmær, Læviathan, Zæz, Incæption, and Interstællar — which are offered both as factory options and as aftermarket pickups.

The brand has built a following within the djent and extended-range guitar community, maintaining a boutique, small-batch output rather than mass production, and is frequently seen at European events such as Guitar Summit.

Hapas Guitars has 2 products cataloged on Equipboard, including Solid Body Electric Guitars. Their gear is featured by 2 artists, with the strongest followings in Rock and Metal. Notable users include Buster Odeholm and Calle Thomer.