| Name | Type | Country |
|---|---|---|
| SITTA Silleria de Oficina S.L.L | Enterprise | Spain |
| Smart Innovation Norway | Enterprise | |
| Smart signs | Enterprise | Spain |
| Sociedad de Ciencias Aranzadi | Foundation | Spain |
| Sociedad de desarrollo de Santa Cruz de Tenerife | Enterprise | Spain |
| SONAE CENTER SERVIÇOS II, S.A. | Enterprise | Portugal |
| South West College | University | United Kingdom |
| Spanish Chapter of the IEEE Education Society | Association | |
| SPARTA TECHNOLOGIES LTD | Enterprise | United Kingdom |
| SPRI | Public administration | Spain |