Sequentix is a Berlin-based hardware sequencer manufacturer founded by Colin Fraser. The company grew out of Fraser's work on the P3 Sequencer, a MIDI step sequencer he designed in the 1990s that gained a cult following through the Analogue Heaven and Synth-DIY mailing lists. Approximately 250 P3 units were produced before EU regulatory changes made key components unavailable, ending production in 2006.

In 2011, Sequentix released the Cirklon, a multi-track hardware sequencer designed in Scotland over several years. With 5 independent MIDI inputs and outputs, optional CV/gate outputs, and rock-solid timing, the Cirklon became a studio centerpiece for electronic musicians worldwide. Only 1,353 units of the original model were produced, contributing to long wait lists and a fervent secondhand market. After relocating to Berlin, the company launched the Cirklon2 in 2020, adding a full-colour touchscreen, USB host capability, increased memory, and a more powerful CPU while retaining the workflow that made the original a legend.

Sequentix also produces the MidiBass 303, a MIDI retrofit kit for the Roland TB-303 that allows the classic synth to be controlled by any MIDI keyboard or sequencer. The Cirklon's user base includes a wide range of prominent electronic artists, among them Aphex Twin, The Chemical Brothers, Boards of Canada, Richie Hawtin, Thom Yorke, and Bicep.

Sequentix has 5 products cataloged on Equipboard, including Audio Sequencers, Production & Groove, and Modular Synthesizers. Their gear is featured by 18 artists, with the strongest followings in Electronic, Rock, and Pop. Notable users include Richie Hawtin, Jas Shaw, and Aphex Twin.