- Sanghiang
- SEGALAB
- Sennereiverband Südtirol – Federazione latterie Alto Adige
- Seoul Dairy Co-op
- SILLIKER – MÉRIEUX NUTRISCIENCES
- SILLIKER France SAS
- Silliker Inc
- Silliker Mexico SA de CV
- SILLIKER Portugal SA
- SILLIKER SWITZERLAND
- Solico Kalleh Tehran
- State Chemical Laboratory of Greece A Division of Pireus
- State enterprise Pieno Tyrimai
- State University of Milan Dept Food Science Technology Dairy Laboratory
- Swiss Quality Testing Services (SQTS)
- Technical Services Lab
- TECSA Laboratorios
- Testing Laboratory for Milk and Dairy Products
- Thüringer Verband für Leistungs- und Qualitätsprüfungen in der Tierzucht e.V.
- Tsakalidis Analysis&Testing
- TÜV AUSTRIA LABS
- UADS
- University of Ljubljana Biotechnical Faculty Zootechnical Department Laboratory for Dairying
- University of Ljubljana, National Veterinary Institute, U Kranj
- University of Zagreb Faculty of Agriculture Department of Dairy Science Reference Laboratory for milk and Dairy products
- USDA AMS National Science Laboratory
- Veneto Agricoltura – Istituto per la Qualità e le Tecnologie Agroalimentari
- Veterinary Laboratory of Patras
- VetLab
- VETLAB
- VIMTA LABS LTD
- Vioanalysis Scientific Laboratory – Dimitriou Dimitrios & Co SA
- Westland Milk Products
- Wisconsin Center for Dairy Research Analytical Service
