• ABAX AS
  • Alf I Larsen AS
  • Alingsås Plåtmaskiner AB
  • Alumeco Norge AS
  • Alunor Metall AS
  • Astrup AS
  • Aurubis Finland
  • BECONOR AS
  • Benders Norge AS
  • Bertel O. Steen Vare-Last-Buss AS
  • Birger N. Haug AS (i samarbeid med Nissan Nordic)
  • Bygg og Bevar
  • Cordel Norge AS
  • Duri Fagprofil AS
  • Exvent AS
  • Flexit AS
  • Frimann-Berner AS
  • Grøvik Verk AS
  • Icopal AS
  • If
  • Isola ASKAMI, Kalix Mekaniska Industrier AB
  • Kjell Olsen Maskinforretning AS
  • Lindab AS
  • Lonevåg Beslagfabrikk AS
  • Mittet AS Avd. Vegsund
  • Monier AS, Avd. DrammenOLBI AS
  • Opplæringskontoret for Ventilasjons og blikkenslagerfaget avd Oslo og Omegn
  • Oslo Liftutleie AS
  • Otovo AS
  • P. Meidell AS
  • Plannja AS
  • Prefa GmbH Alu-Dächer und -Fassaden
  • RHEINZINK
  • RMIG as
  • Roald & Sønn AS
  • RSA Bil Oslo
  • SFS intec AS
  • Siga Cover Ag
  • Skarpnes as
  • Spanish Slate Quarries UK Ltd
  • SSAB Svensk Stål AS
  • Stålprofil AS / Stålprofil Sør AS
  • Systemair AS
  • Taksenteret Oslo AS
  • Tata Steel Norway Byggsystemer ASTelenor Norge AS
  • U-nite Fasteners Technology AB
  • VBL
  • Veidrift AS
  • Ventistål AS
  • Vest Vind Media AS
  • VM BUILDING SOLUTIONS Scandinavia A/S
  • Östberg Norge AS