| 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 |
| Detail | Slévárna Kuřim, a.s. | 29291721 | Another entity | CZ064 | Detail |
| Detail | SLÉVÁRNA, spol. s r.o. | 45539367 | Another entity | CZ052 | Detail |
| Detail | Slévárny Třinec, a.s. | 25830716 | Another entity | CZ080 | Detail |
| Detail | Slezská důlní díla a.s. | 04200667 | | | Detail |
| Detail | SLEZSKÉ STAVBY OPAVA s.r.o. | 48391212 | | | Detail |
| Detail | Slezské zemské muzeum | 00100595 | State contributory organization | CZ080 | Detail |
| Detail | SLIG Consulting, s. r. o. | 25587081 | Another legal entity | CZ064 | Detail |
| Detail | Slivkoff, s.r.o. | 26156377 | Another entity | CZ | Detail |
| Detail | SLORAMA, spol. s r.o. | | | | Detail |
| Detail | SLOUPSKÝ s.r.o. | 25844431 | Another legal entity | CZ071 | Detail |
| Detail | Slovácká pekárna s.r.o. | 14004755 | Another entity | CZ | Detail |
| Detail | Slovácké muzeum v Uherském Hradišti, příspěvková organizace | 00092126 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | SLOVENSKE ENERGETICKE STROJARNE, a.s. | | | | Detail |
| Detail | SLOVPUMP-TRADE, s.r.o. | 36029670 | | | Detail |
| Detail | Sludge s.r.o. | 08416788 | Another legal entity | CZ020 | Detail |
| Detail | SLUDO s.r.o. | 07716303 | | | Detail |
| Detail | Služba, výrobní družstvo | 00028819 | | | Detail |
| Detail | SLUŽBY LIŠOV, s.r.o. | 25157264 | Another legal entity | CZ | Detail |
| Detail | Služby Loučovice s.r.o. | 04825365 | Another legal entity | CZ031 | Detail |
| Detail | Služby města Bechyně, p.o. | 06678769 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Služby města Bzence, příspěvková organizace | 71217151 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | SLUŽBY MĚSTA JIHLAVY s.r.o. | 60727772 | Another legal entity | CZ063 | Detail |
| Detail | Služby města Jindřichův Hradec s.r.o. | 26043335 | Another legal entity | CZ031 | Detail |
| Detail | Služby města Napajedla, příspěvková organizace | 71240063 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Služby města Pardubic a.s. | 25262572 | Another legal entity | CZ053 | Detail |
| Detail | Služby města Slušovice, příspěvková organizace | 75158108 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Služby města Týniště nad Orlicí | 42885086 | Another entity | CZ052 | Detail |
| Detail | Služby Města Veselí nad Moravou | 46936777 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Služby městyse Pozlovice s.r.o. | 29218934 | Another legal entity | CZ072 | Detail |
| Detail | Služby obce Červená Voda, s.r.o. | 01582836 | Territorial self-governing unit or its contributory organization | CZ053 | Detail |
| Detail | Služby obce Město Albrechtice s.r.o. | 25844067 | Another entity | CZ080 | Detail |
| Detail | Služby Praha s.r.o. | 05073669 | Another entity | CZ | Detail |
