| Ditta | Cantone | NAP | luogo | Sito web | |
|---|---|---|---|---|---|
| marratec engineering gmbh | Argovia | 5023 | Biberstein | www.marratec.ch | |
| Sanitas Troesch AG | Berna | 2504 | Biel | www.sanitastroesch.ch | |
| Gschwend Architekten GmbH | Berna | 2502 | Biel/Bienne | www.gschwendarchitekten.ch | |
| Prona AG | Berna | 2502 | Biel/Bienne | www.prona.ch |
|
| eicher+pauli Biel AG | Berna | 2502 | Biel/Bienne | www.eicher-pauli.ch | |
| Joulia SA | Berna | 2503 | Biel/Bienne | www.joulia.com |
|
| AIRcond SA | Ticino | 6934 | Bioggio | www.aircond.ch | |
| Kurt Büchler AG | Turgovia | 9220 | Bischofszell | www.buechler-bedachungen.ch | |
| Meyer Conseils & Constructions Sàrl | Vaud | 1807 | Blonay | www.meyercc.ch |
|
| InfraBlow.Siegrist GmbH | Berna | 3065 | Bolligen | www.infrablow.ch | |
| swisspor AG | Argovia | 5623 | Boswil | ||
| JORIS Réalisations SA | Vallese | 1946 | Bourg-St-Pierre | www.acjoris.ch | |
| H.P. Holzer AG | Berna | 3533 | Bowil | www.holzerkaminbau.ch | |
| Röthlisberger Zimmerei AG | Berna | 3533 | Bowil | www.roethlisberger-zimmerei.ch | |
| Scherler SA | Ticino | 6932 | Breganzona | www.scherler.swiss | |
| Energys Sàrl | Vaud | 1817 | Brent | www.energys.ch | |
| Flück Haustechnik AG | Berna | 3855 | Brienz | www.flueck-haustechnik.ch | |
| Wyler Holzbau AG | Berna | 3855 | Brienz | www.wylerholzbau.ch | |
| AMC GmbH | Vallese | 3900 | Brig | ||
| Josef Zehnder AG | Vallese | 3900 | Brig - Glis |
