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Sadowsky Guitars - Based in New York.

Sakashta Guitars - Archtop, flattop, and electric guitar maker.

Samick - Samick Music USA - Acoustics, electrics, and amps.

Saqui Guitars - Custom acoustic and acoustic/electric guitars.

Schaefer Guitars - Handcrafted archtop guitars.

Schecter Guitar Research - Guitars, basses, 7-strings, and Diamond Series instruments.

Schroder Musical Instruments - Hand-crafted archtop guitars.

Scipio Guitars - Custom guitar design and repairs.

Scott Guitars - Electric guitars.

Sergei de Jonge Guitars - Hand-crafted classical and steel string guitars. Also offers a guitar making course.

Sever Guitars & Basses - Handmade and custom instruments from Slovenia.

Shannon Guitars - Custom acoustic guitars.

Sherman Custom Guitars - Custom guitars with a patented new tremolo system.

Silvertone: The American Legend - A user created site for Silvertone guitars and amps.

Simon & Patrick - Acoustic guitars.

Slidemo Guitar Works - Custom vintage style guitars.

Smicz Amplification - Portable all tube guitar amps that can operate on AC or battery.

Smokey Amplifiers - Sells an amp built out of a real cigarette pack.

So Flo Amps - Makes several hand-wired tube amps.

Song Guitars - Handcrafted electric guitars.

Songworks - Little Lanilei miniature tube amps.

Sonntag Guitars - Acoustic and archtop guitars.

Soundsmith, Inc - Tube preamps, repairs amps, and amp mods.

Southwell Guitars - Concert guitars.

Spruce Hill Guitars - Aluminium bodied instruments.

Starr Labs - Makes guitar MIDI controller and digital pickup selectors.

Steinberger - Wood and composite guitars.

Billy Stuart - Handmade electric and acoustic guitars.

Suhr Guitars - Hand built electric guitars.