Medlemmer Lonar Skogsdrift AS Brødrene Vatnebryn AS Varme & Bad AS Geoenergi AS Brødrene Høyset ANS MT-Anlegg AS Vest-Telemark Pukkverk AS Strand Bygg og Anlegg AS Veidekke Industri AS GEOM Hokksund Massesenter Service Partner Kopstad AS
