Quoted Company
- S & U PLC
- S4 Capital PLC
- Sabien Technology Group PLC
- Sabre Insurance Group PLC
- Safe Harbour Holdings PLC
- SafeCharge International Group Ltd
- Safeland PLC
- Safestay PLC
- Safestore Holdings PLC
- Safestyle UK PLC
- Saga PLC
- Sage Group (The) PLC
- Sagicor Financial Corporation Ltd
- Sainsbury (J) PLC
- Salt Lake Potash Ltd
- SalvaRx Group PLC
- Samsung Electronics Co Ltd
- San Leon Energy PLC
- Sanderson Group PLC
- Sanditon Investment Trust PLC
- Sanne Group PLC
- Sareum Holdings PLC
- Savannah Petroleum PLC
- Savannah Resources PLC
- Savills PLC
- Sberbank of Russia
- Scancell Holdings PLC
- Scapa Group PLC
- Schlumberger Ltd
- Scholium Group PLC
- Schroder Asian Total Return Investment Company PLC
- Schroder AsiaPacific Fund PLC
- Schroder European Real Estate Investment Trust PLC
- Schroder Income Growth Fund PLC
- Schroder Japan Growth Fund PLC
- Schroder Oriental Income Fund Ltd
- Schroder Real Estate Investment Trust Ltd
- Schroder UK Mid Cap Fund PLC
- Schroders PLC
- Science Group PLC
- Science in Sport PLC
- Scientific Digital Imaging PLC
- SciSys Group PLC
- Scotgems PLC
- Scotgold Resources Ltd
- Scottish American Investment Company (The) PLC
- Scottish Investment Trust (The) PLC
- Scottish Mortgage Investment Trust PLC
- Scottish Oriental Smaller Companies Trust (The) PLC
- ScS Group PLC
- SDCL Energy Efficiency Income Trust PLC
- SDL PLC
- SDX Energy Inc.
- Sealand Capital Galaxy Ltd
- SEC S.p.A
- Secure Income REIT PLC
- Secure Property Development & Investment PLC
- Secure Trust Bank PLC
- Securities Trust of Scotland PLC
- Seeing Machines Ltd
- Segro PLC
- Seneca Global Income & Growth Trust PLC
- Seneca Growth Capital VCT PLC
- Senior PLC
- Sensyne Health PLC
- SEPLAT Petroleum Development Company PLC
- Sequoia Economic Infrastructure Income Fund Ltd
- Serabi Gold PLC
- Serco Group PLC
- Serica Energy PLC
- Serinus Energy PLC
- Severfield PLC
- Severn Trent PLC
- Severstal PJSC
- Shaftesbury PLC
- Shanta Gold Ltd
- Share PLC
- Shearwater Group PLC
- Shefa Yamim (A.T.M.) Ltd
- Sherborne Investors (Guernsey) B Ltd
- Sherborne Investors (Guernsey) C Ltd
- Shield Therapeutics PLC
- Shires Income PLC
- Shoe Zone PLC
- Shore Capital Group Ltd
- SIG PLC
- Sigma Capital Group PLC
- SigmaRoc PLC
- Silence Therapeutics PLC
- SIMEC Atlantis Energy Ltd
- SimiGon Ltd
- Simplybiz Group (The) PLC
- Sirius Minerals PLC
- Sirius Petroleum PLC
- Sirius Real Estate Ltd
- SkinBioTherapeutics PLC
- Slingsby (H.C.) PLC
- Smart (J.) & Co. (Contractors) PLC
- Smart Metering Systems PLC
- Smartspace Software PLC
- Smith & Nephew PLC
- Smith (DS) PLC
- Smiths Group PLC
- Smithson Investment Trust PLC
- Smurfit Kappa Group PLC
- SNGN Romgaz SA
- Societatea Energetica Electrica SA
- SOCO International PLC
- Softcat PLC
- SolGold PLC
- Solid State PLC
- Solo Oil PLC
- Somero Enterprises Inc
- Sopheon PLC
- Sophos Group PLC
- Sosandar PLC
- Sound Energy PLC
- South32 Ltd
- SpaceandPeople PLC
- Spectra Systems Corporation
- Spectris PLC
- Speedy Hire PLC
- Spinnaker Opportunities PLC
- Spirax-Sarco Engineering PLC
- Spire Healthcare Group PLC
- Spirent Communications PLC
- Spitfire Oil Ltd
- Sportech PLC
- Sports Direct International PLC
- Springfield Properties PLC
- SQN Asset Finance Income Fund Ltd
- SQN Secured Income Fund (The) PLC
- SRT Marine Systems PLC
- SSE PLC
- SSP Group PLC
- St James's Place PLC
- St Modwen Properties PLC
- St Peter Port Capital Ltd
- Staffline Group PLC
- Stagecoach Group PLC
- Standard Chartered PLC
- Standard Life Aberdeen PLC
- Standard Life Investments Property Income Trust Ltd
- Standard Life Private Equity Trust PLC
- Standard Life UK Smaller Companies Trust PLC
- Stanley Gibbons Group (The) PLC
- Starcom PLC
- Starcrest Education The Belt & Road Ltd
- Starvest PLC
- Starwood European Real Estate Finance Ltd
- StatPro Group PLC
- Stenprop Ltd
- Steppe Cement Ltd
- Sterling Energy PLC
- SThree PLC
- Stilo International PLC
- Stirling Industries PLC
- STM Group PLC
- Stobart Group Ltd
- Stock Spirits Group PLC
- Stranger Holdings PLC
- Strategic Equity Capital PLC
- Strategic Minerals PLC
- Stride Gaming PLC
- Strix Group PLC
- STV Group PLC
- Summerway Capital PLC
- Summit Germany Ltd
- Summit Therapeutics PLC
- Sumo Group PLC
- Sunrise Resources PLC
- Superdry PLC
- Supermarket Income REIT PLC
- Sure Ventures PLC
- Sureserve Group PLC
- Surface Transforms PLC
- Surgical Innovations Group PLC
- Sutton Harbour Holdings PLC
- SVM UK Emerging Fund PLC
- Swallowfield PLC
- Sylvania Platinum Ltd
- Symphony Environmental Technologies PLC
- Symphony International Holdings Ltd
- Synairgen PLC
- Syncona Ltd
- Synectics PLC
- Synnovia PLC
- Synthomer PLC
- SysGroup PLC
- System1 Group PLC