Eurorack modular synthesizers have been growing in popularity over the last few years. Eurorack modular synths are relatively inexpensive, compared to larger formats, and pack a lot of functionality into a small space.

There are now over fifteen companies making Eurorack synth modules, giving Eurorack owners more options than just about any other modular synth platform. If you’re planning a Eurorack synth, there’s an online modular synth planner you should check out – the Mega Modular Planner.

Here’s a list of active Eurorack modular synthesizer manufacturers, along with links to recent coverage of their synths at Synthtopia:

Eurorack Synth Modular Manufacturers

1. 4MS Pedals has moved from effects pedals into Eurorack Modules, with their Pingable Envelope Generator, Shuffling Clock Multiplier, Atoner, Swash and other modules.
2. Abstract Data – maker of the ADE-10 Reactive Shaper module.
3. ADDAC Systems - offers programmable modules, like the Voltage-Controlled Computer system and several stand-alone modules.
4. AMSynths - a small scale, UK based, manufacturer of high quality analog synthesizer modules, as well as PCB’s for Synthesizer DIY.
5. Analogue Systems (UK) – makes the RS line of synth modules, and unique keyboard controllers like the French Connection. Analogue Systems on Synthtopia
6. Analogue Solutions (UK) – creators of the Concussor synth modules, along with a variety of synths and sequencers, including the Red Square, the Leipzig, the SEMblance, the TBX-303 and the Oberkorn.  Analogue Solutions on Synthtopia
7. Atomo Labs has introduced a new line of AtomoSynth Eurorack modules.
8. Bananalogue (USA) – makes several synth modules, including a couple of Serge-influenced modules. Their site is currently missing in action. If you’ve got additional information, leave a comment. Bananalogue on Synthtopia
9. Blue Lantern Modules offers a small line of Eurorack modules, which currently includes the LM4250 VCF and the DIode VCF.
10. Bubblesound (US) – makes Eurorack synth modules with original components to more accurately capture the sound of vintage gear. Their site is currently missing in action. If you’ve got additional information, leave a comment. Bubblesound on Synthtopia
11. Circuit Abbey offers several Eurorack modules, including the Gravity Well wave warper, the Tripfire comparator and input and output modules.
12. ControlVoltage.org – makes an analog Eurorack format VCF
13. Cwejman (Sweden) – Cwejman makes semi-modular synthesizers and also a large variety of Eurorack synth modules. Cweman on Synthtopia
14. Cyndustries (USA) – Cyndustries makes synth modules in Blacet, DotCom, ModCan, MOTM & Eurorack formats. Their best known modular is the Zeroscillator, a high end modular oscillator. Cyndustries on Synthtopia.
15. Delptronics offers Eurorack synthesizer modules, effects boxes and other unique electronic musical instruments.
16. Division 6 makes a small line of modules that includes the Filtare SEIII multimode filter and some utility modules.
17. Doepfer (Germany) – manufacturer of electronic music instruments, ranging from keyboards and MIDI controllers to complete analog modular synthesizer systems. Doepfer on Synthtopia
18. Erthenvar has a line of utility modules, including input, output and power modules. They also carry Eurorack DIY parts, including mounting rail.
19. Elby Designs (Australia) – makes the Panther series of Eurorack analog synthesizer modules and kits, based on Cat Girl Synth designs. Elby Designs on Synthtopia
20. Electronic Music Works – has introduced a new line of Eurorack modules, including the Wave Composition Oscillator.
21. Encore Electronics – makes the Universal Event Generator and a Frequency Shifter.
22. Endorphin.es – a new Euro maker that has introduced one moduler, the Furthrrrr Generator.
23. Expert Sleepers – makes Silent Way, a suite of applications for integrating computers with modular synthesizers, and Eurorack interfaces.
24. Flame offers Eurorack modules, in addition to other MIDI controller and electronic music instruments. Their current lineup includes the Clockwork, Tame Machine and Talking Synth modules.
25. Flight of Harmony (USA) – currently has a small line of synth modules, including the Plague Bearer quad voltage-controlled resonant bandpass filter. Flight of Harmony on Synthtopia
26. Future Sound Systems (UK) – Future Sound Systems makes synth modules in MOTM/Modcan/Dotcom and Eurorack formats. You can customize your modules with special panels and LED colors. Future Sound Systems on Synthtopia
27. GorillaBox – makes a line of heavy-duty modular synth cases.
28. Grayscale – creates alternate panels for Eurorack modules
29. Harvestman (USA) – makes a very original line of voltage-controlled digital signal processing modules, including the Malgorithm, Zorlon Cannon, Tyme Safari and a Polivoks filter. Harvestman on Synthtopia
30. Innerclock Systems – offers the Sync-Gen modular DAW synchronization interface.
31. Intellijel makes some creatively designed and named modules, including hte Azimuth, Mutagen, Spock and Mind Meld.
32. Jomox has introduced a new line of Eurorack analog drum modules
33. Jones – makes Eurorack modules for video synthesis
34. Kenton has introduced a new Eurorack MIDI to CV converter, the Modular Solo.
35. Koma has introduced a small line of Euro modules, including a State Variable Filter and Tap Tempo Clock Generator.
36. Kilpatrick Audio offers some advanced modules, including a dual VCO, Step Sequencer, Pattern Generator and MIDI Convertor.
37. Livewire (USA) – Livewire makes a small collection of very interesting synth modules, including the Dalek Modulator, Dual Cyclotron & the Vulcan Modulator. Livewire on Synthtopia
38. Livid Instruments has introduced Eurorack format modular MIDI controllers.
39. Low Gain Electronics manufacturers several utility modules.
40. LZX Industries has a line of EuroRack format synthesizer modules designed for creating and manipulating video and images, the LZX Visionary Modular Video Synthesizer.
41. MacBeth Studio Systems has introduced their X-Series  of synth modules.
42. Makenoise (USA) – makes a small collection of synth modules, including a Quad Multi-Mode Gate, modDemod and the Format Jumbler. Makenoise on Synthtopia
43. Malekko Heavy Industry has a broad variety of synth modules, including Eurorack Wiard modules and the B:Assmaster fuzz effect.
44. Metasonix (USA) – specializes in vacuum tube based synth modules. Metasonix on Synthtopia
45. MFB (Germany) – makes a variety of drum synth modules in addition to standard modular synth components (VCO, VCF, sequencers). MFB also makes semi-modular and mini-synths. MFB on Synthtopia
46. Minimal Systems – has introduced a new line of Euro modules.
47. Monorocket – makes suitcase style Eurorack modular synthesizer cases.
48. Mungo Enterprises has introduced a small line of Eurorack modules.
49. Oakley Sound Systems is a popular source of DIY synth module designs.
50. Pittsburgh Modular makes a broad range of modules, including an Analog Delay, Generator dual oscillator and the Timetable clock divider.
51. Plan B (USA) – Peter Grenader’s line of synthesizer modules features a wide variety of modules, many of which are influenced by classic Buchla designs. Plan B on Synthtopia.
52. Rebel Tech – creator of the Stoicheia Euclidean Sequencer.
53. Snazzy FX has begun offering Eurorack modules, starting with the Dreamboat dual chaotic oscillator.
54. Somatic Circuits offers several Euro modules in its Luna Modular line, including the VC303 bassline voice module and the VEM.
55. Sound Machines offers a small line of Eurorack modules, including the RB1robotto and RC1radiostar.
56. Sound Modular sells cases for Eurorack modular synths.
57. STG Sound Labs modules are available in several formats, including Moog style and Eurorack.
58. Synthwerks has introduced some unique modules, especially the force sensing resistor family of modules.
59. Subconscious Studios – offers a small line of Eurorack modules, including a VCO and LFP.
60. Synthesizer Factory – makes an all-in-one Euro synth module, the Synth Machine.
61. Synthetic Sound Labs – makes both Eurorack and 5U modules
62. Thonk – UK firm that is ‘here to sell you DIY modulare synth goods, including EuroRack module kits.
63. Tiptop (USA) – makes a small, but cool line of synth modules, including the Z3000 Smart Voltage Controlled Oscillator and the Z5000 Voltage Controlled Digital Signal Processor. Tiptop Audio on Synthtopia
64. TouellSkouarn – offers several Eurorack modules, including a Germanium Fuzz, Fet Pream and Stereo HeadPhone output.
65. Trogotronic offers ‘cruel and unusual instruments’, including Eurorack modules, vintage style controllers and ‘Crude Controls’. Current modules include the Model 676 Fury M tube synth and the Model 666 module, which packs a VCO, VCF and VCA into one module.
66. Vermona has announced a Quad MIDI-CV interface for Eurorack modular synths.
67. Voltergeist is a new Eurorack & 5U developer that currently offers Synthesizers.com and MOTM  power components.
68. XAOC Devices, aka ‘The Eastern Bloc Modular Synth Vendor’ has several sequencing modules in development.
69. WMD Instruments makes a line of Eurorack modules that includes the Eurorack Geiger, Micro Hadron Collider and the Gamma Wave Source.

If you’ve got additions, corrections or comments about any of the manufacturers, please leave a comment below!

via MusicOfSound, MuffWriggler; image: thumbuki