| Biral AG | 147 |
| Elcotherm AG, Basel, Vilters | 22 |
| Elcotherm AG, Bern, Vilters | 50 |
| Elcotherm AG, Central, Vilters | 50 |
| Elcotherm AG, Jura, Vilters | 23 |
| Elcotherm AG, Ost, Vilters | 161 |
| Elcotherm AG, Romandie 1, Vilters | 86 |
| Elcotherm AG, Romandie 2, Vilters | 47 |
| Elcotherm AG, Süd, Vilters | 57 |
| Elcotherm AG, Zürich, Vilters | 130 |
| Hoval AG | 425 |
| Meier Tobler AG, Schwerzenbach | 1350 |
| Sigmatic AG, Sursee | 55 |
| Wilo Schweiz AG, Rheinfelden | 30 |
| Ygnis AG, Bern, Ruswil | 4 |
| Ygnis AG, Central, Ruswil | 40 |
| Ygnis AG, Ost, Ruswil | 2 |
| Ygnis AG, Romandie 1, Ruswil | 6 |
| Ygnis AG, Romandie 2, Ruswil | 5 |
| Ygnis AG, Zürich, Ruswil | 6 |
