Bademiljø Mesterrør AS - Levanger

Gåsbakk & Sønner AS - Mebygda

Moe montasje AS - Malm

KEM PROSJEKT AS - Malm

A3-BYGG BEITSTAD AS - Malm

Schankes -

Byggservice Trøndelag AS - Malvik

Hafsmo Anders -

Rørkompaniet EFT. AS - Vikhammer

Solberg maskin AS - Trondheim