• 

  Crystek Corporation

• 

  DETECTOR ELECTRONICS CORP.

• 

  Digital Equipment Corporation DEC

• 

  Ecoroll

• 

  Edcore

• 

  ELECTRO INSULATION CORPARATION

• 

  ESS Corp

• 

  ESTIC CORPORATION

• 

  Falk Corporation

• 

  Filmtec (Dow Corning)