• 

  Beckhoff

• 

  Conductix (formerly product of Bischoff-Hensel)

• 

  Böllhoff

• 

  Ew Hof

• 

  KALTHOFF

• 

  Bollhoff

• 

  Forsthoff

• 

  Hoffman

• 

  Hoffmann

• 

  Moenninghoff