| Ditta | Cantone | NAP | luogo | Sito web | |
|---|---|---|---|---|---|
| Pronto AG | San Gallo | 9000 | St. Gallen | www.pronto-ag.ch | |
| Basler & Hofmann AG | San Gallo | 9000 | St. Gallen | www.intep.com | |
| Hälg & Co. AG | San Gallo | 9001 | St. Gallen | ||
| pom+Consulting AG | San Gallo | 9001 | St. Gallen | www.pom.ch | |
| Vadea AG | San Gallo | 9008 | St. Gallen | www.vadea.ch | |
| diemenergie gmbh | San Gallo | 9010 | St. Gallen | www.diemenergie.ch | |
| art light GmbH | San Gallo | 9014 | St. Gallen | www.artlight.ch | |
| EgoKiefer AG | San Gallo | 9014 | St. Gallen | www.egokiefer.ch | |
| Pfister + Pfister | San Gallo | 9014 | St. Gallen | ||
| IEP Ingenieure AG | San Gallo | 9015 | St. Gallen | www.iep-ingenieure.ch | |
| Meier Tobler Lüftungshygiene AG | San Gallo | 9015 | St. Gallen | www.lueftungshygiene.ch | |
| HEFTI. HESS. MARTIGNONI. St. Gallen AG | San Gallo | 9015 | St. Gallen | www.hhm.ch | |
| EQUANS Services AG St. Gallen | San Gallo | 9016 | St. Gallen | www.equans.ch | |
| EIFFAGE SUISSE AG | San Gallo | 9016 | St. Gallen | ||
| Sanitas Troesch AG | San Gallo | 9016 | St. Gallen | ||
| Tiro Ofenbau AG | San Gallo | 9016 | St. Gallen | www.tiro.ch | |
| Klima Komfort GmbH | San Gallo | 9016 | St. Gallen | www.klimakomfort.ch | |
| Bauatelier Schwartz AG | San Gallo | 9016 | St. Gallen | www.bau-atelier.com | |
| Bauatelier Schwartz | San Gallo | 9036 | Grub | www.bau-atelier.com | |
| Schadegg O2-Care GmbH | Appenzello Esterno | 9042 | Speicher |
