| Nazwa spółki | Nazwa giełdowa | Ticker | ISIN |
|---|---|---|---|
| S4E SA | S4E | S4E | PLS4E0000015 |
| Sadovaya Group SA | SADOVAYA | SGR | LU0564351582 |
| Sakana SA | SAKANA | SKN | PLSAKAN00010 |
| Sanok Rubber Company SA | SANOK | SNK | PLSTLSK00016 |
| Santander Bank Polska SA | BZWBK | SPL | PLBZ00000044 |
| Sanwil SA | SANWIL | SNW | PLSANWL00012 |
| SAP SE | SAP | DE0007164600 | |
| Satis Group SA | ADVPL | STS | PLADVPL00029 |
| Saule Technologies SA | BLUPREIPO | SLT | PLBLMPI00017 |
| Scanway SA | SCANWAY | SCW | PLSCWAY00018 |
| Scope Fluidics SA | SCOPEFLUIDICS | SCP | PLSCPFL00018 |
| SDS Optic SA | SDSOPTIC | SDS | PLSDSOP00013 |
| Seco/Warwick SA | SECOWARWICK | SWG | PLWRWCK00013 |
| Sedivio SA | EC2SA | SED | PLEC20000010 |
| Seko SA | SEKO | SEK | PLSEKO000014 |
| Selena FM SA | SELENA | SEL | PLSELNA00010 |
| Selvita SA | SELVITCRO | SLV | PLSLVCR00029 |
| Serinus Energy plc | KULCZYKOIL | SEN | JE00BNNMKT29 |
| Sescom SA | SESCOM | SES | PLSESCM00013 |
| Sevenet SA | SEVENET | SEV | PLSVNET00019 |
| SFD SA | SFDSA | SFD | PLSFD0000013 |
| Sfinks Polska SA | SFINKS | SFS | PLSFNKS00011 |
| Sheepyard SA | DRKENDY | SHY | PLDRKND00010 |
| Shoper SA | SHOPER | SHO | PLSHPR000021 |
| Siemens AG | SIEMENS | DE0007236101 | |
| Silvair Inc. | SILVAIR | SVRS | USU827061099 |
| Silvano Group AS | SILVANO | SFG | EE3100001751 |
| SimFabric SA | SIMFABRIC | SIM | PLSMFBC00016 |
| Simteract SA | SIMTERACT | SMT | PLSMTRC00013 |
| Skarbiec Holding SA | SKARBIECHOL | SKH | PLSKRBH00014 |
| Skotan SA | SKOTAN | SKT | PLSKTAN00010 |
| Skyline Investment SA | SKYLINE | SKL | PLSKLNW00011 |
| Sleepz AG | BMP | SLZ | DE000A2E3772 |
| Śnieżka SA | ŚNIEŻKA | SKA | PLSNZKA00033 |
| Softblue SA | SOFTBLUE | SBE | PLSFTBL00012 |
| Software Mansion SA | SOFTMANSION | SWM | PLSFTMN00015 |
| Soho Development SA | 04PRO | SHD | PLNFI0400015 |
| Solar Company SA | SOLAR | SOL | PLSLRCP00021 |
| Solar Innovation SA | TABLEO | SIN | PLTABLO00012 |
| Sonel SA | SONEL | SON | PLSONEL00011 |
| Sonka SA | SONKA | SOK | PLSNK0000012 |
| Sopharma AD | SOPHARMA | SPH | BG11SOSOBT18 |
| Space Fox Games SA | SPACEFOX | FOX | PLSPFXG00014 |
| Spark VC SA | REKLAMOFON | SPK | PLRKLMF00010 |
| SpyroSoft SA | SPYROSOFT | SPR | PLSPRSF00011 |
| Stalexport Autostrady SA | STALEXPORT | STX | PLSTLEX00019 |
| Stalprodukt SA | STALPRODUKT | STP | PLSTLPD00017 |
| Stalprofil SA | STALPROFIL | STF | PLSTLPF00012 |
| Standrew SA | STANDREW | STD | PLSTNDR00019 |
| Starhedge SA | HARDEX | SHG | PLHRDEX00021 |