A Glasgow company, incorporated in 2016.

Instruo, which writes its name Instruō, is a Eurorack maker in Glasgow. Its company, Instruo Limited, was incorporated in Scotland on 11 October 2016, according to Companies House, which lists its business as the manufacture of musical instruments and shows one director, Jason Lim, appointed on the day the company was formed. The company’s website names no founder and tells no origin story, so we keep to the register: a small, independent firm, with no acquisition or outside owner recorded in the sources we checked.

The name is Latin. On the earliest archived version of instruomodular.com, from April 2019, the company glossed instruō as a noun meaning instruction or teaching and a verb meaning “to build or construct, to provide with information, instruct, teach and inform.” The macron over the final letter is part of how the company writes its name today, though retailers and the press usually drop it.

The same 2019 page carried a banner reading “Eurorack modules hand built in Scotland” and listed the early range with prices in pounds: the Cš-L complex oscillator at £510, the Harmonàig harmonic quantizer at £300, and the Tš-L, Tòna, Tràigh, Cèis, tanh[3], I-ō47, Scíon, Aithēr and Troika. Today the site says only that the company is in Glasgow, Scotland, and we have not seen the hand-built claim independently confirmed.

Granular, tape and Gaelic names.

The module that made Instruo’s reputation is arbhar, a granular processor. The company says its launch in 2019 “heralded a new generation of granular processing in Eurorack,” and Synthtopia, covering it in February 2020, listed six buffers of up to ten seconds each, polyphonic grain playback, a built-in condenser microphone and a granular algorithm the company calls the Lexer method; the same site covered a version 2.0 firmware in October 2023. Arbhar is Scottish Gaelic for grain or corn, which suits a machine that chops sound into grains, and later names, such as the cnoc function generator (cnoc is Gaelic for hill), carry the same flavour. The current arbhar sells for £599 and ships with passive CV and USB expanders and a 4GB flash drive, the company says.

Lúbadh, a two-channel looper at £599, takes its cue, the company says, from “the aesthetics and mechanics of early tape techniques,” with an analogue input stage that adds slight compression, filtering and saturation; each channel can record, overdub, trim, scan and re-pitch its audio. In September 2022 Synthtopia reported two analogue modules: cruïnn, a stereo oscillator stacking six phase-displaced sawtooth waves into what the company called “super-super-super-super-super saws,” and cnoc, a two-stage function generator in the West Coast tradition.

Instruo has also reached people who may never buy a module. In December 2020 it released 17 free modules for VCV Rack, the virtual Eurorack platform, including Cš-L, harmonàig and troika, saying it hoped they would help people “get a feel for our modules and to learn from them.” At Superbooth 2025 in Berlin it introduced Seashell, a compact semi-modular system priced at £649 and paired with a control app for Linux, macOS and Windows. The company pitches it as an instrument that can sit inside a DAW, join a live set, take a MIDI controller, expand a Eurorack system or simply play on its own.

Names as a sense of place.

Two of the seven are British. ALM Busy Circuits dates its start to 2012 and its first module, Pamela’s Workout; its founder, Matthew Allum, is named by retailers and FACT magazine, and its press releases are datelined London. Instruō Limited of Glasgow, Scotland, was incorporated in 2016 with Jason Lim as its director, Companies House records show, and Lim has presented its instruments in public, including at the SchneidersLaden shop in Berlin in 2019.

Two have their roots in Barcelona. Befaco says it was created in February 2010 as an open-hardware platform, publishing its designs under a Creative Commons licence; an archived version of its website credits the support of Hangar, a Barcelona arts production centre. Endorphin.es says it was founded in 2010 by Andreas Zhukovsky in Kyiv, Ukraine, registered as a company there in 2013 with Julia Bondar, and moved to Barcelona in 2016.

Two are American. Pittsburgh Modular says it was established in 2012 by Richard Nicol, though archived pages show it selling modules by 2010; it is based in Pittsburgh, Pennsylvania, where it says its Structure cases are built, tested and shipped. Qu-Bit Electronix says Andrew Ikenberry founded it in 2013 while a student at Berklee College of Music in Boston; it is now based in San Clemente, California, and says it keeps as much manufacturing as possible in-house.

Verbos Electronics crossed the Atlantic. Mark and Sonya Verbos launched its first five modules at the NAMM show in 2014, moved production into a New York workspace after six months of outsourcing, and relocated to Berlin in 2017; the company, now Verbos Electronics GmbH, says its modules are designed and assembled there.

This guide sets out what can be checked about each brand — who founded it, who owns it, and what it says about where its products are made — and marks clearly what rests only on the company’s own word.

Plants, sensors and a Latin verb.

The most unusual strand of Instruo’s work is biofeedback. Its SCÍON module is a biofeedback sensor built into a quad random voltage generator; the company says the design is based on the MidiSprout by Data Garden, and it turns readings taken from contact with plants and other organic surfaces into control voltages. In August 2025 Instruo and the musician and ecologist Tarun Nayar, who records as Modern Biology, introduced Pocket SCÍON, a handheld synthesizer that generates soundscapes and MIDI from sensor clips or a touchpad. Synthtopia reported a preorder price of US$149, four built-in instruments, five-note polyphony over MIDI and USB, and ready-made templates for Ableton Live, Processing, TouchDesigner and Jupyter Lab. MusicRadar called Instruo “Scottish modular specialists” and described Pocket SCÍON as descended from the Eurorack module; Nayar, quoted by Synthtopia, thanked “Jason, Kian and the Instruo team.” The current range also includes the íre, a transformer microphone preamp with phantom power and a -20dB pad, and dhà, a compact stereo mixer with a built-in stereo VCA and rear stereo jacks for routing signals in and out of a case.

As for visual identity, Instruo publishes no brand book, official colours or typeface, and we found no documented logo designer. What is consistent is language: often lower-case module names, accents and macrons, and Gaelic words alongside a Latin company name.

For a design guide, Instruo shows how naming can carry a sense of place without a single landscape photograph. Compare Mutable Instruments, the Paris maker of the Clouds granular module, and Make Noise, maker of the Maths function generator. For this guide we use loch slate, a sea teal and sand with a geometric sans, an unofficial interpretation; no product or logo is reproduced.

Keep Instruo’s identity on hand — save it to a board in the Made Good inspiration library.