P...

 La Playa Distributing / LPD Music

 McPherson Stompboxes

 P3 Pedals

 Pacificustom Pedals

 PAiA

 Paisley Tubby Effects

 PAL

 Palmer

 Palmer Hardware

 Panic Pedals

 Panther

 Panussis Electronics

 Paolo Mazza

 Paraclete Productions

 Park

 Partheus

 Passion For Music

 Patina Pedals

 Paul Lenders Guitarsystems

 Paul Trombetta Design

 Pax

 PDX-EFX Portland Pedal Effects

 Peak

 Pearl

 Peavey

 PEC

 Pedal Diggers

 Pedal Enclosures

 Pedal Monsters

 Pedal Pad

 Pedal Projects

 Pedal Tank

 PedalDoctor FX

 Pedalflex

 Pedalman

 Pedals By Tone

 Pedals Of Babylon

 Pedaltrain

 PedalWorX

 Pedrone

 Pefftronics

 PEI (Progressive Electronics Inc.)

 Penfar FX

 Penny Pedals

 PepTone

 Perfect Square Electronics

 Pete Cornish

 Peterson Tuners

 Petronics

 PEWaves

 Pfeiffer Electronics

 PH Pedals

 Phantom FX

 Pharaoh

 Phase One Technologies

 Phase-In

 PHI Electronics

 Phoenix Custom Electronics

 Phosphene Audio

 Photogenic

 Pick Boy

 Pickletech FX

 Pierce Custom Electronics

 Piezo

 Pigdog

 Pigeon FX

 PiggyFX

 Pignose

 Pigtronix

 Pimp my Guitar (PmG)

 Piod

 Pirate Pedals

 Pitch Black Electronics

 PitchMaster

 PJ Pedals

 PK Effects

 Plan-9

 Planet Waves

 Play Mate

 PlayTech

 PLC

 PLH

 Plosive Electronics

 Plug & Play Amplification

 Plugged It!

 Plum Crazy FX

 Plush FX pedals (by Fuchs)

 Pluto Music Systems

 Plutoneium

 PMG - Professional Music Gear

 PMP - Professional Music Products

 PMS

 PMT

 PNP Music

 Podals

 Polaris

 Poly Sound

 Polytone

 Popp Effects

 Port City Amps

 PortaSound

 POS

 Pour Hommes (by Rex Bogue)

 Power

 Power City

 Power Pedals

 Powertran

 PowerVoice

 PPG

 PR Series Percussion

 Precinct

 Prescription Electronics

 Presonus

 Primitive FX

 Private Label FX

 Pro Analog

 Pro Co

 Pro Drive

 Pro Stage Gear

 Pro Tone Pedals

 Pro'Traffic

 Pro-Effects

 Pro/Watt

 Probes Pedals

 Proel

 Profi-Sound

 Profile+

 ProFxPedals

 Properboy

 Prophecysound

 Prostage

 Providence

 ProXON Custom Analog Effects

 Prune Works

 Psionic Audio

 PSK

 Psychederhythm

 Psychobox

 PUE

 Puffhandy

 PulseWave Electronics

 Purdy

 Purple Spaceship

 Push+Pull Pedals

 Puzzle Pedals

 PWB Electronics

 Pyle Pro Guitar

 Roberto Pistolesi