• 

  Crowcon

• 

  Times Microwave Systems

• 

  BBC Brown Boveri

• 

  Harowe (API Delevan/Danaher/Dynapar)

• 

  Arrow

• 

  Arrow Pneumatics

• 

  Begerow

• 

  Browning

• 

  David Brown

• 

  Marki Microwave