Sergio Rosar is a Brazilian pickup maker based in Florianópolis, Santa Catarina, founded in 2005 by Sergio Rosar. The company specializes in handwound guitar and bass pickups, with a catalog that spans Stratocaster, Telecaster, humbucker, noiseless, and Jazz Bass style pickups sold individually and in matched sets.

The lineup includes models such as the MS Set, Epic Classic Set, Workhorse Trio, H90 (a P90-voiced pickup in humbucker format), and single-coil voicings like Extreme Hot, Vintage Hot, and Blues 43. The brand also offers tribute sets aimed at replicating classic tones, including a Trio set inspired by David Gilmour's sound.

Products are built by hand in Florianópolis and sold primarily through the brand's own online store and Brazilian retailers, with a growing presence on Reverb for international buyers. Sergio Rosar has built its reputation within the Brazilian guitar community as a boutique pickup winder focused on vintage-leaning and modern voicings for electric guitar and bass.

Sergio Rosar has 3 products cataloged on Equipboard, including Electric Guitar Pickups.