Affiliations with the Letter S
- S & T Company -- Egypt
- Sabanci University -- Turkey
- Sabic Europe -- Netherlands
- SAC Life Science Group -- United Kingdom
- Saehan Industries, Inc. -- Korea
- Saga University -- Japan
- Sagami Chemical Research Center -- Japan
- Salford University -- United Kingdom
- Samsung General Chemicals -- Korea
- Samsung Total Petrochemicals Co., Ltd. -- Korea
- Sandia National Laboratories -- United States
- Sangster Research Laboratories -- Canada
- Sankyo Co., Ltd. -- Japan
- Sanofi Aventis - Chinoin -- Hungary
- Santa Catarina Federal University -- Brazil
- Santen Oy -- Finland
- São Paulo State University -- Brazil
- Saratov State University -- Russia
- Sasol Polymers, PTC -- South Africa
- Schering AG -- Germany
- Schlumberger Technology Corporation -- United States
- Schlumberger, Inc. -- Brazil
- Schlumberger, Inc. -- Canada
- Science for Development -- United Kingdom
- Science University of Tokyo -- Japan
- ScienceSoft, Inc. -- Belarus
- Scientific & Trading Co. -- Egypt
- SciTe, B.V. -- Netherlands
- Scripps Research Institute -- United States
- Scuola Normale Superiore di Pisa Federico II -- Italy