| 1 | | Gemmistrasse 20 | Salgesch | CH | | Shipping Company, Demolition Contractor, Excavating Contractor, Real Estate, Road Construction Company, Services, Warehouse | +41 274517171 | | Gerhard Constantin |
| 2 | | Aarburgerstrasse 176 | Olten | CH | | Construction Company | +41 622874300 | | Kevin Hammann |
| 3 | | Station-West 2a | Rothenburg | CH | | Steel Distributor | +41 2888080 | | Raphael Stocker |
| 4 | | Langgass 5 | Birrhard | CH | | Construction Company, Architect, Civil Engineer, Earth Works Company, Recycling Center | +41 564605300 | | Kevin Hammann |
| 5 | | Gartenstrasse 1 | Samnaun | CH | | Engineer, Civil Engineer, Surveyor | +41 812869700 | | Jenal Mario |
| 6 | | Schneckelerstrasse 12 | Füllinsdorf | CH | | Construction Company | +41 619058700 | | Kevin Hammann |
| 7 | | Margarethenstrasse 75 | Basel | CH | | Construction Company | +41 612278700 | | Kevin Hammann |
| 8 | | Quellenstrasse 37 | Rheinfelden | CH | | Construction Company | +41 618364300 | | Ruben Castillo |
| 9 | | Via Sorts 47 | Ilanz | CH | | Engineer, Civil Engineer, Land Surveyor | +41 812869700 | | Jenal Mario |
| 10 | | Spundisstrasse 23 | Chur | CH | | Engineer, Civil Engineer, Surveyor | +41 812869700 | | Robin Caprez |
| 11 | | Oberurmein 44 | Urmein | CH | | Engineer | +41 812869700 | | Jenal Mario |
| 12 | | Camenisch 26 | Andiast | CH | | Construction Company | +41 819362090 | | N/A |
| 13 | | Strandbadstrasse 90 | Wetzikon | CH | | Construction Company | +41 449315000 | | N/A |
| 14 | | Luzernstrasse 34 | Derendingen | CH | | Civil Engineer | +41 326813333 | N/A | Gerhard Mühlheim |
| 15 | | Alte Zugerstrasse 26 | Wädenswil | CH | | Construction Company | +41 432579200 | N/A | Beat Wüthrich |
| 16 | | Karlihofstrasse 7 | Malans | CH | | Road Construction Company | +41 813225127 | N/A | Beat Foser |
| 17 | | Grossmattenstrasse 2 | Uerkheim | CH | | Construction Company | +41 627397000 | N/A | Hannes Feucht |
| 18 | | In Gruben 22 | Schaffhausen | CH | | Civil Engineer, Engineer, Structural Engineer | +41 526330666 | N/A | Esther Tockner-Müller |
| 19 | | Hochstrasse 190 | Pfäffikon | CH | | Corporate Office | +41 432579420 | N/A | Patrick Nagy |
| 20 | | Industriestrasse 15 | Affoltern am Albis | CH | | Construction Company | +41 432579220 | N/A | N/A |