- Amptweaker
- Basic Audio
- BeatBuddy
- Beetronics
- Big Joe Stomp Box
- Black Volt Effects
- BMF Effects
- Bogner Pedals
- Bonfire Boost
- Buffalo FX
- CAST Engineering
- Catalinbread
- Chase Bliss
- Cioks
- Crazy Tube Circuits
- Cusack Music
- Dawner Prince Electronics
- Diezel
- Disaster Area Designs
- Earthquaker Devices
- Effectrode
- El Rey Effects
- Electro-Harmonix
- Empress
- Eventide
- Fairfield Circuitry
- Foxgear
- Fulltone
- GR Bass Effects
- Greenhouse Effects
- Greer Amps
- J. Rockett
- Jackson Audio
- Jetter Gear
- JHS Pedals
- Keeley Electronics
- Koll
- Lee Jackson
- Lehle
- Logsdon Audio
- Mad Professor
- Mesa Engineering
- Mission Engineering
- Mojo Hand FX
- One Control
- Origin Effects
- Pettyjohn Electronics
- Pigtronix
- ProAnalog Devices
- Rainger FX
- Recovery
- RMC
- RYRA
- Shin's Music
- Shin-ei
- Sonic Research
- Strymon
- Suhr Effects
- TC Electronics
- Terry Audio
- Vertex
- VL Effects
- Walrus Audio
- Wampler Pedals
