| Detail | Silniční vývoj - ZDZ spol. s r.o. | 64507181 | | | Detail |
| Detail | Siluett plast, s.r.o. | 29115361 | | | Detail |
| Detail | Silvafortis s.r.o. | 23880139 | | | Detail |
| Detail | SILVAGRO s.r.o. | 27476162 | Another legal entity | CZ052 | Detail |
| Detail | Silvan Špicar | 73030406 | Another entity | CZ080 | Detail |
| Detail | Silverton s.r.o. | 24283410 | | | Detail |
| Detail | S I M A T , akciová společnost | 43001211 | | | Detail |
| Detail | Simbit Enterprises s.r.o. | 07177810 | | | Detail |
| Detail | ŠIMEK proficentrum s.r.o. | 25247301 | Another legal entity | CZ032 | Detail |
| Detail | SIMEXA s.r.o. | 17545196 | | | Detail |
| Detail | Simona Plast-Technik s.r.o. | 25496344 | Czech Republic | CZ042 | Detail |
| Detail | Simona Zagora | 03605108 | Another legal entity | CZ020 | Detail |
| Detail | Šimon Růžička | 23547464 | | | Detail |
| Detail | Simple Lift s.r.o. | 04352246 | | | Detail |
| Detail | Simply LED, s.r.o. | 17464307 | | | Detail |
| Detail | Simply Pro Security s.r.o. | 06655947 | | | Detail |
| Detail | SimulationsDienstleistungsZentrum GmbH | | | | Detail |
| Detail | SimulPlast, s.r.o. | 27809862 | | | Detail |
| Detail | Simuverse GmbH | | | | Detail |
| Detail | SimVR s.r.o. | 18043356 | | | Detail |
| Detail | Šindler, důlní a stavební společnost s.r.o. | 00204382 | | | Detail |
| Detail | SINOPORT s.r.o. | 09080341 | | | Detail |
| Detail | "sinpps s.r.o." | 62584332 | | | Detail |
| Detail | Sintech-Energy s.r.o. | 09204300 | | | Detail |
| Detail | SINTEX, a.s. | 25298496 | | | Detail |
| Detail | SinuCraft s.r.o. | 22179569 | | | Detail |
| Detail | S - Invest CZ s.r.o. | 25526171 | | | Detail |
| Detail | S - Invest CZ tender s.r.o. | 09980229 | | | Detail |
| Detail | SIOT Trade s.r.o. | 28970535 | | | Detail |
| Detail | SISKO spol. s r. o. | 47155558 | | | Detail |
| Detail | SIS RENEWABLES s.r.o. | 08721815 | | | Detail |
| Detail | SITA B.V. - organizační složka pro Českou republiku | 70899061 | | | Detail |
| Detail | SITAP, s.r.o. | 45195404 | Another legal entity | CZ071 | Detail |
| Detail | SITEL, spol. s r.o. | 44797320 | | | Detail |
| Detail | SITEMAN s.r.o. | 21246041 | | | Detail |
| Detail | SITEQ s.r.o. | 09445536 | | | Detail |
| Detail | Sitewell s.r.o. | 25007203 | | | Detail |
| Detail | SITEZ s.r.o. | 28662814 | | | Detail |
| Detail | Sitkeys s.r.o. | 17866715 | | | Detail |
| Detail | SIVAK TECH s.r.o. | 23884916 | | | Detail |
| Detail | SIWECO, s.r.o. | 25999664 | | | Detail |
| Detail | SIZ s.r.o. | 27265480 | | | Detail |
| Detail | SK9, s.r.o. | 28751035 | | | Detail |
| Detail | SK ANNABERG z.s. | 26670852 | Another legal entity | CZ080 | Detail |
| Detail | Skanska a.s. | 26271303 | Another entity | CZ | Detail |
| Detail | Skanska Transbeton, s.r.o. | 60471778 | Another entity | CZ010 | Detail |
| Detail | S K A - T E C spol. s r.o. | 45274975 | | | Detail |
| Detail | SK Baník Libušín, z.s. | 48705888 | Another entity | CZ020 | Detail |
| Detail | SK Březolupy, z.s. | 48491993 | Czech Republic | CZ072 | Detail |
| Detail | SK BÝŠŤ, z.s. | 46494430 | Another legal entity | CZ052 | Detail |
| Detail | SK Design, s.r.o. | 25330551 | | | Detail |
| Detail | SK Dynamo České Budějovice akademie, z.s. | 47234199 | Another legal entity | CZ031 | Detail |
| Detail | SK Horní Staré Město, z.s. | 47466596 | Another entity | CZ052 | Detail |
| Detail | SK Hrachovec, z.s. | 68898525 | Another entity | CZ072 | Detail |
| Detail | SKILL s.r.o. | 48039039 | | | Detail |
| Detail | SKINA s.r.o. | 22524258 | | | Detail |
| Detail | SKI Vítkovice - Bílá z.s. | 70632219 | Another legal entity | CZ080 | Detail |
| Detail | SK JSMEINLINE, z. s. | 07465921 | | | Detail |
| Detail | SK Kladno, z. s. | 16979770 | Another entity | CZ020 | Detail |
| Detail | SK Líšeň | 13691732 | Another legal entity | CZ064 | Detail |
| Detail | Sklostroj Turnov CZ, s.r.o. | 60111739 | Another entity | CZ051 | Detail |
| Detail | SKL RECYKLOSTAV s.r.o. | 29010161 | Another entity | CZ02 | Detail |
| Detail | Škoda Auto a.s. | 00177041 | Another entity | CZ020 | Detail |
| Detail | Škoda Auto Vysoká škola z.ú. | 29142890 | Another legal entity | CZ020 | Detail |
| Detail | ŠKODA JS a.s. | 25235753 | | | Detail |
| Detail | ŠKODA TRANSPORTATION a.s. | 62623753 | | | Detail |
| Detail | SK Olbramovice z.s. | 47082275 | Another legal entity | CZ020 | Detail |
| Detail | SKOLENKA s.r.o. | 03929591 | | | Detail |
| Detail | Školky - Montano, spol. s r.o. | 47546131 | | | Detail |
| Detail | Školní interiéry s.r.o. | 26857596 | Czech Republic | CZ | Detail |
| Detail | Školní jídelna Česká Skalice | 06494528 | Territorial self-governing unit or its contributory organization | CZ052 | Detail |
| Detail | Školní jídelna Jablunkov, Lesní 190, příspěvková organizace | 70640068 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Školní sportovní klub Bílovec,z.s. | 26626161 | Another entity | CZ080 | Detail |
| Detail | Školní statek, Opava, příspěvková organizace | 00098752 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | SK Olympie Dolní Břežany z.s. | 49855212 | Another legal entity | CZ020 | Detail |
| Detail | SKOS s.r.o. | 62027077 | | | Detail |
| Detail | SK PETŘÍN PLZEŇ z.s. | 00479250 | Another entity | CZ032 | Detail |
| Detail | S&K PUBLIC spol. s r.o. | 46902589 | | | Detail |
| Detail | ŠKRAMPAL spol. s r.o. | 26055554 | | | Detail |
| Detail | SK Řečkovice, z.s. | 44962100 | State contributory organization | CZ064 | Detail |
| Detail | SKR stav, s.r.o. | 26961474 | | | Detail |
| Detail | SK Slavoj Volyně, z.s. | 62519719 | Another legal entity | CZ031 | Detail |
| Detail | SK Sokol Zlatníky, z.s. | 47002638 | Another entity | CZ020 | Detail |
| Detail | SK SPARTAK Příbram, spolek | 61904899 | Another entity | CZ020 | Detail |
| Detail | SK Sportino z. s. | 03757218 | Another entity | CZ080 | Detail |
| Detail | SKS s.r.o. | 43420117 | | | Detail |
| Detail | SK Starý Plzenec z.s. | 45330581 | Another entity | CZ032 | Detail |
| Detail | SK stavby - zámečnictví a.s. | 09305394 | | | Detail |
| Detail | SK stavitel plus s.r.o. | 18025731 | | | Detail |
| Detail | SK Strakonice 1908, z.s. | 22890947 | Another legal entity | CZ031 | Detail |
| Detail | S - Kunststofftechnik s.r.o. | 25901443 | Another legal entity | CZ | Detail |
| Detail | Skymat s.r.o. | | | | Detail |
| Detail | SKYNER s.r.o. | 01612875 | | | Detail |
| Detail | Skypartners by Energylink s.r.o. | 25000781 | | | Detail |
| Detail | SLADOVNY SOUFFLET ČR, a.s. | 26173174 | Another legal entity | CZ071 | Detail |
| Detail | SLAP cz s.r.o. | 26041651 | | | Detail |
| Detail | Slatinné lázně Třeboň s.r.o. | 25179896 | Another legal entity | CZ031 | Detail |
| Detail | Slavia pojišťovna a.s. | 60197501 | | | Detail |
| Detail | Slemr Spedition s.r.o. | 22802819 | Another legal entity | CZ042 | Detail |
| Detail | Slévárna Chomutov s.r.o. | 22113665 | | | Detail |
