| ILO | Financial & Professional Services | 44 |
| World Meteorological Organization (WMO) | Water & Environment | 38 |
| HBD - Amt für Hochbauten (AHB) | Construction & Infrastructure | 29 |
| Fachstelle Beschaffungswesen Stadt Bern | Construction & Infrastructure | 23 |
| Unité soumissions - Département de l'aménagement, des constructions et de la mobilité (DACM) de la Ville de Genève | Construction & Infrastructure | 23 |
| Tiefbauamt Graubünden | Water & Environment | 22 |
| Hochbauamt, Baubereich B | Construction & Infrastructure | 20 |
| armasuisse Immobilien | Construction & Infrastructure | 16 |
| Ufficio federale delle strade USTRA, divisione infrastruttura stradale Est | Construction & Infrastructure | 16 |
| Office fédéral des routes OFROU, Division Infrastructure routière Ouest, filiale Estavayer-le-Lac | Construction & Infrastructure | 14 |
| WIPO | Financial & Professional Services | 13 |
| IOM | Sports, Recreation & Events | 12 |
| Services industriels de Genève (SIG) - Direction Achats | Construction & Infrastructure | 12 |
| Amt für Städtebau | Construction & Infrastructure | 11 |
| UN Secretariat | IT & Telecom | 11 |
| Commune de Bois-d'Amont | Construction & Infrastructure | 10 |
| Politische Gemeinde Gommiswald | Construction & Infrastructure | 10 |
| Rhätische Bahn AG | Construction & Infrastructure | 10 |
| Service des bâtiments de l'Etat de Neuchâtel - DOSP | Construction & Infrastructure | 10 |