Tveito Maskin AS - Lunde

Telemark Grunn & Betong As - Gvarv

Rørleggermestern AS - Gvarv

SL Entreprenør AS - Skien

Betonmast Telemark AS - Skien

Maskinentreprenør Ingar Løver As -

TP Anleggsteknikk AS -

Sikane bygg - Siljan

Kaasa maskin AS - Gvarv

Isobygg Telemark - Vestfold AS - Gvarv