Kartakou is a small handmade guitar electronics manufacturer founded in 2013 by Vasili, an engineer who began designing pedal circuits in 2006. The company originated in Belarus (with operations in Minsk) and ships EU orders from Vilnius, Lithuania. Its stylized name is sometimes rendered as "Kartakoŭ," reflecting the Belarusian Latin transliteration.

The brand specializes in tube-driven guitar equipment and boutique effects, producing each unit by hand in small batches. Its product lineup includes the Colossus, a tube preamp with IR cab simulation loosely inspired by Peavey 5150/6505-style high-gain tones; the Beastbox E530 tube preamp; the Cobblestone, a compact 45W tube power amplifier also offered as a pedalboard-friendly micro amp head; the Warmer overdrive, a TS808/TS9-style Tube Screamer-inspired pedal with a bass boost toggle and asymmetrical clipping mode; and the EXP-01 expression pedal.

Kartakou sells direct through its own website and via marketplaces like Reverb and eBay, shipping worldwide. The brand has developed a following among players seeking affordable handbuilt tube preamps and Tube Screamer variants, and maintains a customer forum for support and product discussion.

Kartakou has 2 products cataloged on Equipboard, including Guitar Power Amplifiers and Guitar Preamps.