U.K.

 (unknown, U.K.)

 0xd FX

 Able Electronics

 Abraxas Sound

 AJ Custom FX

 Allen & Heath

 Allen & Heath Xone series

 AMP - Associated Musical Products

 Analog Metropolis

 Analogue Solutions

 Analogue Systems

 Ancient Orbit

 Ansom

 Antoria

 Arbiter

 Ashdown Engineering

 Aston Electronics

 Audigoa

 Audio Kitchen

 Audio Storm

 Avon

 Award-Session

 Axe

 B&M / Barnes and Mullins LTD.

 Baldwin-Burns

 Bell Electrolabs

 Big Bite Fx

 Big Knob Pedals

 Blackstar Amplification

 Blue Coconut

 Boo Instruments

 Boost Switch Pedals

 Bright Onion Pedals

 Bryce Amps

 BugBrand

 Burford Electronics

 Burns

 Cactus

 Calypso FX

 Carlsbro

 Casimir Effects Pedals

 Castledine Electronics

 CBS-Arbiter

 Champ Electronics

 Champion

 Charlie Hall

 Chord

 CMI

 Cog Effects

 Colorsound / Sola Sound

 Columbus

 Comet Effects

 Coopersonic

 CSL

 D&M

 D*A*M (Differential Audio Manifestationz)

 Dacs

 Dallas

 Dallas Pedals

 Dallas-Arbiter

 Dan Armstrong

 Dave Hall Amps (DHA)

 Davidson Effects

 DB Design

 Dean Ramsay

 Design Retro Works (DRW)

 Dewtron

 Dharma Sound

 Diago

 Dickinson

 Digiplay

 Digisound

 Digitana Electronics

 Dinosaural

 Discrete Circuits

 Doctor Tweek FX

 DogsBolloxFx

 Dr Tone

 Dr. Green (by Ashdown/Hayden)

 DWJ Boutique Pedals

 E-fects Hand Built Effects

 Effectrode

 ElectroLead

 Emanating Fist Electronics

 EMS

 ESE

 ETI

 Euro-Music

 Eurotec

 Excel

 FAL (Future Amplification Limited)

 Flynn Amps

 Foxx Amplification

 Fredric Effects

 Frequency Central

 Fret-King

 Fret-Ware

 Frontline

 Futuristic Sounds

 FuzzFaceless Pedals

 Fuzztronics

 G.B.

 Gary Hurst

 Gas FX

 Ghost Effects

 Giant Mouse

 Gigsounds

 Gimp FX

 GLX

 Gojira Effects

 Gough Electronics

 Green Carrot Pedal Company

 Guitar Tech

 Guru Electronics

 H&H Electronics

 Hayden

 Hello Sailor Effects

 Highfield

 Hoxton Owl

 Hudson Electronics UK

 Hutchins

 IMP - Ibstock Magnetic Pickups

 IMP - International Music Products

 Ironman Effects

 JamSonix

 JEI (Jennings Electronic Industries)

 Jennings Electronic Developments

 JHS - Hornby Skewes

 Jimmy Bean

 JMI Amplification

 Joe Meek

 Johnny Brook

 JR Electronics

 Karma FX Pedals

 Kimbara

 Knight Audio Technologies (KAT)

 LAB Effects

 Ladipo

 Langtronics

 Lard Effects

 Lateral Sound

 Lazy J Projects

 Looperstar

 LoveMuffin Pedals

 Lovetone

 M Design Haus

 M&M Electronics

 MacBeth Studio Systems

 MadeByMike

 Magnetic Effects

 Mammoth Sound

 Mango Amps

 MarkOne Audio

 Marque

 Marshall

 Monika

 Monkey FX

 Moonphase LTD

 Mutronics

 MW Hand-Built Pedals

 MWFX

 My Dad Is Iggy

 Myrtle Pedals

 Napalm Pedals

 NFX Pedals

 Nine Of Swords

 Noise Custom Guitar Systems

 North Effects

 Oakley Sound Systems

 Old Sound Technologies

 Orange

 Origin Effects

 Owen Electronics

 Owen James Originals

 Paisley Tubby Effects

 Park

 Partheus

 Pedal Projects

 Pete Cornish

 Petronics

 Pickletech FX

 Pigdog

 Pigeon FX

 PNP Music

 Powertran

 Pro'Traffic

 R.M.S. Audio Technologies

 Rainger FX

 Rayder

 Raygun FX

 Retro-Electro Effects

 RetroTone Audio

 RoaK Efx

 Roberts

 Robotron

 Roger Mayer Electronics

 Rogue Sound

 Rothwell Audio Products

 RotoSound

 Rouch Effects

 Rouse Electronics

 Saturnine Pedals

 Selmer

 Shaftesbury

 ShapeShifter Pedals

 SharpFX

 Sharptone FX

 SJ Audio Devices

 Sleeping Dog FX

 SM Fuzz

 Sonic Bomber

 Sonic Electronix

 Sonuus

 Sound City

 Sound Lab

 Squirrel Audio

 Stanley-FX

 Stone

 Stone Box Audio

 Stone Deaf FX

 Storm

 SuperKing

 Swift Pedals

 SynthRestore

 The Gig Rig

 Thurlby Electronics

 TNA

 Top Gear

 Trace Elliot

 Trucker Side FX

 TwinStomp

 V8V

 Valvette

 Vintage Pedal Workshop

 Voltage Pickups

 Vox

 Walt Byrd

 Watson

 WEM / Watkins Electric Music

 Williams Audio

 Wilsic Sound

 Wing Music

 Zap Instruments

 Zed FX

 Zenta

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