| Firma | Kanton | PLZ | Ort | Webseite | |
|---|---|---|---|---|---|
| Bureau technique Joseph Bossert | Wallis | 1870 | Monthey 2 | ||
| abgottspon werlen architekten gmbh | Wallis | 3930 | Visp | www.abgottspon-werlen.ch | |
| Dénériaz Construction Bois SA | Wallis | 1950 | Sion | www.deneriaz.com | |
| Esprit Energie Sarl | Wallis | 1966 | Saxonne Ayent | www.energie-renouvelable.ch | |
| Avanthey S.A. | Wallis | 1870 | Monthey | www.avanthey.ch | |
| Ewald Gattlen AG | Wallis | 3930 | Visp | www.gattlen-e.ch | |
| H. BUCHARD S.A. | Wallis | 1920 | Martigny | www.buchardbois.ch | |
| Hallenbarter AG | Wallis | 3904 | Naters | www.hallenbarter.ch | |
| Technica Architecture | Wallis | 1997 | Haute-Nendaz | www.mamaisonbois.ch | |
| IMBODEN & PARTNER architekten fh | Wallis | 3930 | Visp | www.imboden-partner.ch | |
| Imwinkelried Lüftung und Klima AG | Wallis | 3930 | Visp | www.imwinkelried-group.ch | |
| JORIS Réalisations SA | Wallis | 1946 | Bourg-St-Pierre | www.acjoris.ch | |
| Josef Zehnder AG | Wallis | 3900 | Brig - Glis | ||
| Lauber IWISA AG | Wallis | 3904 | Naters | www.lauber-iwisa.ch | |
| Rhyner énergie Sàrl | Wallis | 1893 | Illarsaz | www.rhyner-energie.ch | |
| RTB Corvaglia Sàrl | Wallis | 1895 | Vionnaz | www.villartb.ch | |
| Sigma ingénierie & maintenance sa | Wallis | 1950 | Sion | ||
| TECSA | Wallis | 1964 | Conthey | www.tecsa.ch | |
| Valcalorie SA | Wallis | 1950 | Sion | www.valcalorie.ch | |
| Poujoulat Switzerland SA | Wallis | 3977 | Granges | www.poujoulat.ch |
