| Detail | ZRIA, a.s. | 63080303 | Another legal entity | CZ072 | Detail |
| Detail | ZŠ Karla Vokáče | 47694815 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | ZŠ Praha 7, Strossmayerovo nám. 4, P7 | 61389838 | Territorial self-governing unit or its contributory organization | CZ010 | Detail |
| Detail | ZULIP s.r.o. | 27696537 | Another legal entity | CZ072 | Detail |
| Detail | ZUNI Care s.r.o. | 23139960 | | | Detail |
| Detail | ZVÁNOVEC a.s. | 26026279 | | | Detail |
| Detail | ZVVZ ENGINEERING, a.s. | 25696882 | | | Detail |
| Detail | Zymestic Solutions, a.s. | 08071128 | Another legal entity | CZ010 | Detail |
| Detail | ŽĎAS, a.s. | 46347160 | Another entity | CZ063 | Detail |
| Detail | Železárny Štěpánov, spol. s r.o. | 46992651 | Another legal entity | CZ064 | Detail |
| Detail | Železářství Fiala s.r.o. | 25578693 | | | Detail |
| Detail | Železářství Říha, s.r.o. | 14200538 | | | Detail |
| Detail | Železniční společnost Tanvald o.p.s. | 25474481 | Another legal entity | CZ051 | Detail |
| Detail | Židovské muzeum v Praze | 60459263 | Another entity | CZ010 | Detail |
| Detail | Živá voda, z. s. | 26996391 | Another legal entity | CZ052 | Detail |
| Detail | Živé nemovitosti, spol. s r.o. | 08629030 | | | Detail |
| Detail | ŽLTC Brno, z.s. | 13692534 | Another legal entity | CZ064 | Detail |
| Detail | Žoček Jiří, Ing. | 14908930 | | | Detail |
| Detail | 1. Soukenická s.r.o. | 26440971 | | | Detail |
| Detail | 1. Vodohospodářská společnost, s.r.o. | 47551917 | | | Detail |
| Detail | 1. VOX a.s. | 27204987 | Another legal entity | CZ | Detail |
| Detail | 1.PF, s.r.o. | 26169410 | | | Detail |
| Detail | 1.PLASTCOMPANY, spol. s r.o. | 29316359 | | | Detail |
| Detail | 1.SERVIS-ENERGO, s.r.o. | 49786393 | | | Detail |
| Detail | 1.VZPPP s.r.o. | 29193290 | Another entity | CZ064 | Detail |
| Detail | 1.Žďárská plynařská a vodařská, a.s. | 25531328 | | | Detail |
| Detail | 100MEGA Distribution s.r.o. | 60707968 | | | Detail |
| Detail | 14l15 Baťův institut, příspěvková organizace | 72563346 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | 15. přední hlídka Royal Rangers Mariánské Lázně | 68782004 | Another entity | CZ032 | Detail |
| Detail | 2H comp s.r.o. | 26189747 | | | Detail |
| Detail | 2K CONSULTING s.r.o. | 29451990 | | | Detail |
| Detail | 2MH servis s.r.o. | 24226050 | Another legal entity | CZ052 | Detail |
| Detail | 2P Gastro spol. s r.o. | 02120356 | | | Detail |
| Detail | 2P SERVIS s.r.o. | 28049390 | | | Detail |
| Detail | 2P stavební s.r.o. | 08318883 | | | Detail |
| Detail | 2PRnet s.r.o. | 21354073 | | | Detail |
| Detail | 2.základní škola Napajedla, příspěvková organizace | 70941572 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | 2918 s.r.o. | 09080139 | | | Detail |
| Detail | 3 Energy SK, s. r. o. | | | | Detail |
| Detail | 3 Tech., s.r.o. | 26922207 | | | Detail |
| Detail | 3. základní škola, Rakovník, Okružní 2331 | 47013991 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | 3ADVOKÁTI s.r.o. | 06799515 | | | Detail |
| Detail | 3D Manufaktura s.r.o. | 09021833 | | | Detail |
| Detail | 3D Profil s.r.o. | 23286431 | | | Detail |
| Detail | 3Dees Industries s.r.o. | 05997577 | Another legal entity | CZ010 | Detail |
| Detail | 3GENES distribution a.s. | 19584491 | | | Detail |
| Detail | 3gon Positioning s.r.o. | 07724861 | | | Detail |
| Detail | 3K značky s.r.o. | 25056271 | | | Detail |
| Detail | 3L studio s.r.o. | 25462644 | | | Detail |
| Detail | 3M - mont s.r.o. | 09533117 | | | Detail |
