Medlemmer Hallingdal Bergboring AS Vestnorsk Brønnboring Drift AS Kristoffersen AS Graving og Sprenging AS Langvann Maskin og Utemiljø AS Terminalen Entreprenør AS Nyvoll Maskin AS Maskinentreprenør Steffen Berge AS Fiære Entreprenør AS Askøy Riggboring & Anlegg AS
