• 

  Kerb Konus

• 

  B&K Precision

• 

  ABB KENT-TAYLOR

• 

  Ab Kihlstroms Manometerfabrik - no longer exists, alternative brand Messko

• 

  BK Mikro

• 

  B-K Vibro

• 

  DBK David-Baader

• 

  MOLYBKOMBIN

• 

  NBK

• 

  Nbk Nabeya Bi-tech Kaisha