| Firma | Kanton | PLZ | Ort | Webseite | |
|---|---|---|---|---|---|
| GVM Assainissements Sàrl | Neuenburg | 2022 | Bevaix | www.gvmassainissements.ch | |
| Fabio Trisconi Architettura Sagl | Tessin | 6710 | Biasca | www.trisconiarchitettura.ch | |
| UNICA ARCHITEKTUR AG | Solothurn | 4562 | Biberist | www.unica.ch |
|
| marratec engineering gmbh | Aargau | 5023 | Biberstein | www.marratec.ch | |
| Sanitas Troesch AG | Bern | 2504 | Biel | www.sanitastroesch.ch | |
| Gschwend Architekten GmbH | Bern | 2502 | Biel/Bienne | www.gschwendarchitekten.ch | |
| Prona AG | Bern | 2502 | Biel/Bienne | https:www.prona.ch |
|
| eicher+pauli Biel AG | Bern | 2502 | Biel/Bienne | www.eicher-pauli.ch | |
| Joulia SA | Bern | 2503 | Biel/Bienne | www.joulia.com |
|
| AIRcond SA | Tessin | 6934 | Bioggio | www.aircond.ch | |
| MOGGIO ENGINEERING SA | Tessin | 6934 | Bioggio | www.moggioengineering.ch | |
| Kurt Büchler AG | Thurgau | 9220 | Bischofszell | www.buechler-bedachungen.ch | |
| Meyer Conseils & Constructions Sàrl | Waadt | 1807 | Blonay | www.meyercc.ch |
|
| InfraBlow.Siegrist GmbH | Bern | 3065 | Bolligen | www.infrablow.ch | |
| swisspor AG | Aargau | 5623 | Boswil | ||
| JORIS Réalisations SA | Wallis | 1946 | Bourg-St-Pierre | www.acjoris.ch | |
| H.P. Holzer AG | Bern | 3533 | Bowil | www.holzerkaminbau.ch | |
| Röthlisberger Zimmerei AG | Bern | 3533 | Bowil | www.roethlisberger-zimmerei.ch | |
| Scherler SA | Tessin | 6932 | Breganzona | www.scherler.swiss | |
| Energys Sàrl | Waadt | 1817 | Brent | www.energys.ch |
