• 

  Electroswitch (formerly OAK GRIGSBY)

• 

  Parker Herl

• 

  Peerles

• 

  Peerless Electric

• 

  Peerless-Patterson

• 

  Peerless Pump

• 

  Perle

• 

  POWERLD

• 

  PowerLogic

• 

  Scheuerle