| Firma | Kanton | PLZ | Ort | Webseite | |
|---|---|---|---|---|---|
| swisspor Romandie SA | Freiburg | 1618 | Châtel-St-Denis | www.swisspor.ch | |
| Swissroc Group | Genf | 1208 | Genève | swissroc.ch/fr | |
| Sylvia Junge Architecte | Genf | 1226 | Thônex | www.sylvia-junge-architecte.ch | |
| System Evergreen AG | Tessin | 6976 | Castagnola | www.evergreen.swiss | |
| TAMA 3D Sàrl | Waadt | 1357 | Lignerolle | www.tama3d.ch | |
| taro architekten würenlingen ag | Aargau | 5303 | Würenlingen | www.taroarchitekten.ch | |
| TBF + Partner AG | Zürich | 8042 | Zürich | www.tbf.ch | |
| TEC2 AG | Luzern | 6030 | Ebikon | www.tec2.ch |
|
| TechCom electro ag | St. Gallen | 9200 | Gossau SG | www.techcom.ch | |
| Technica Architecture | Wallis | 1997 | Haute-Nendaz | www.mamaisonbois.ch | |
| Technitherm - Yannick Rossier Sàrl | Wallis | 1950 | Sion | www.technitherm.ch | |
| Technoswiss SA | Tessin | 6716 | Acquarossa | ||
| Tecnoprogetti SA | Tessin | 6528 | Camorino | www.tecnoprogetti.ch | |
| Tecnoservice Engineering SA | Freiburg | 1700 | Fribourg | www.tecnoservice.ch | |
| Tecnoservice Engineering SA | Wallis | 1920 | Martigny | www.tecnoservice.ch | |
| Tecnoservice Engineering SA | Neuenburg | 2000 | Neuchâtel | www.tecnoservice.ch | |
| TECSA | Wallis | 1964 | Conthey | www.tecsa.ch | |
| TECSA | Wallis | 1920 | Martigny | ||
| Tectom Koller | Thurgau | 8266 | Steckborn | www.tectom.ch | |
| TEKNOCAD Engineering SA | Freiburg | 1720 | Corminboeuf |
