| Detail | Obec Zářecká Lhota | 00279820 | Territorial self-governing unit or its contributory organization | CZ053 | Detail |
| Detail | Obec Zbenice | 00663042 | Another entity | CZ020 | Detail |
| Detail | Obec Zborovice | 00287920 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Obec Zbraslav | 00282910 | Another entity | CZ | Detail |
| Detail | Obec Zbraslavice | 00236641 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Zbýšov | 00236659 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Zdechovice | 00274623 | Territorial self-governing unit or its contributory organization | CZ053 | Detail |
| Detail | Obec Zdětín | 00600105 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Obec Zdíkov | 00250872 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obec Zhoř | 00573655 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | Obec Zlatá Koruna | 00246212 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Obec Zlobice | 00287954 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Obec Zlonín | 00241067 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Zubčice | 00246221 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obec Zubří | 00842656 | Territorial self-governing unit or its contributory organization | CZ063 | Detail |
| Detail | Obec Zvíkov | 00581968 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obec Zvoleněves | 00235181 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Žabčice | 00282936 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Žádovice | 00285510 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Žákovice | 00600890 | Territorial self-governing unit or its contributory organization | CZ071 | Detail |
| Detail | Obec Žalany | 00266655 | Territorial self-governing unit or its contributory organization | CZ042 | Detail |
| Detail | Obec Žampach | 00279854 | Territorial self-governing unit or its contributory organization | CZ053 | Detail |
| Detail | Obec Žáravice | 00274640 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Obec Žatčany | 00282944 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Žďár | 00640034 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Žďár | 00583952 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obec Ždírec | 00287008 | Territorial self-governing unit or its contributory organization | CZ063 | Detail |
| Detail | Obec Želenice | 00875520 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Želešice | 00282952 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Želetice | 00285544 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Želiv | 00249483 | Territorial self-governing unit or its contributory organization | CZ063 | Detail |
| Detail | Obec Žeranovice | 00287971 | Another entity | CZ072 | Detail |
| Detail | Obec Žerčice | 00238953 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Žermanice | 00494259 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Obec Žernovice | 00583162 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obec Žerotice | 00104051 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Žerůtky | 00636703 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Obec Žichlínek | 00279862 | Territorial self-governing unit or its contributory organization | CZ053 | Detail |
| Detail | Obec Žichovice | 00256374 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | Obec Žíšov | 00667331 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obec Žitenice | 00264725 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Obec Žiželice | 00235962 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Žižice | 00235211 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Žižkovo Pole | 00268569 | Territorial self-governing unit or its contributory organization | CZ063 | Detail |
| Detail | Obec Žlebské Chvalovice | 15054233 | Czech Republic | CZ | Detail |
| Detail | Obec Žleby | 00236691 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Obec Žlutava | 00284734 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Obecní lesy Lipová - lázně, s.r.o. | 25872150 | Another legal entity | CZ071 | Detail |
| Detail | Obecní lesy Svatá Maří | 72559471 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Obecný zájem, z.ú. | 26643715 | Another legal entity | CZ | Detail |
| Detail | Obchodní akademie a Střední odborná škola logistická, Opava, příspěvková organizace | 47813083 | State contributory organization | CZ080 | Detail |
| Detail | Obchodní akademie a Vyšší odborná škola sociálně právní, Ostrava, příspěvková organizace | 00602086 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Obchodní akademie a Vyšší odborná škola Valašské Meziříčí | 00843504 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Obchodní akademie, Český Těšín, příspěvková organizace | 60337320 | State contributory organization | CZ080 | Detail |
| Detail | Obchodní akademie Kroměříž | 63458730 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Obchodní akademie, Ostrava-Poruba, příspěvková organizace | 00602094 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Obchodní akademie Tomáše Bati a Vyšší odborná škola ekonomická Zlín | 00566411 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Obchodní akademie, Vyšší odborná škola a Jazyková škola s právem státní jazykové zkoušky Uherské Hradiště | 60371731 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Oblastní charita Jičín | 73633755 | Czech Republic | CZ | Detail |
| Detail | Oblastní charita Kutná Hora | 49543547 | Another legal entity | CZ020 | Detail |
| Detail | Oblastní charita Nové Hrady u Skutče | 60102411 | Another legal entity | CZ053 | Detail |
| Detail | Oblastní charita Ostrov | 49753185 | Another legal entity | CZ041 | Detail |
| Detail | Oblastní muzeum a galerie v Mostě, příspěvková organizace | 00080730 | Territorial self-governing unit or its contributory organization | | Detail |
| Detail | Oblastní muzeum v Děčíně, příspěvková organizace | 00360210 | Territorial self-governing unit or its contributory organization | | Detail |
| Detail | Oblastní muzeum v Litoměřicích, příspěvková organizace | 00360635 | Territorial self-governing unit or its contributory organization | | Detail |
| Detail | Oborová zdravotní pojišťovna zaměstnanců bank, pojišťoven a stavebnictví | 47114321 | Another legal entity | CZ | Detail |
| Detail | Obvodní soud pro Prahu 1 | 00024384 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 10 | 00024473 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 2 | 00024392 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 3 | 00024406 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 4 | 00024414 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 5 | 00024422 | Czech Republic | CZ | Detail |
| Detail | Obvodní soud pro Prahu 6 | 00024431 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 7 | 00024449 | Czech Republic | | Detail |
| Detail | Obvodní soud pro Prahu 8 | 00024457 | Czech Republic | CZ010 | Detail |
| Detail | Obvodní soud pro Prahu 9 | 00024465 | Czech Republic | | Detail |
| Detail | OCCO Vision s.r.o. | 21030561 | Another legal entity | CZ020 | Detail |
| Detail | Ocelové konstrukce Záhrobí s.r.o. | 10779922 | Another entity | CZ020 | Detail |
| Detail | OCTÉ Electric Czech s.r.o. | 22796347 | Another legal entity | CZ042 | Detail |
| Detail | Očenášek - Mikulka, spol. s r.o. | 26971305 | Another legal entity | CZ071 | Detail |
| Detail | Odborné učiliště a Praktická škola, Nový Jičín, příspěvková organizace | 00601594 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Odborné učiliště a Základní škola Holešov | 47935910 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Odborné učiliště Kelč | 00843318 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | ODEMON spol. s r.o. | 26251825 | Another legal entity | CZ072 | Detail |
| Detail | Odpadové centrum Východního Slovácka s.r.o. | 22314784 | Another legal entity | CZ072 | Detail |
| Detail | Odpadové hospodářství svazku obcí | 11650796 | Another entity | CZ071 | Detail |
| Detail | Odpadové hospodářství svazku obcí Šternbersko s.r.o. | 11810971 | Another legal entity | CZ071 | Detail |
| Detail | OEZ s.r.o. | 49810146 | Another legal entity | CZ053 | Detail |
| Detail | OFFROADSPORT a.s. | 27596192 | Another legal entity | CZ | Detail |
| Detail | OK LANDSCAPE MANAGEMENT s.r.o. | 28148673 | Another legal entity | CZ031 | Detail |
| Detail | O.K. SERVIS BioPro, s.r.o. | 62914511 | Another legal entity | CZ010 | Detail |
| Detail | OK Stavby s.r.o. | 26763982 | Another entity | CZ020 | Detail |
| Detail | O.K. Trans Service, s.r.o. | 06697631 | | | Detail |
| Detail | OK ZAHRADY s.r.o. | 28768655 | Another legal entity | CZ052 | Detail |
| Detail | OKD, a.s. | 05979277 | Another legal entity | CZ080 | Detail |
| Detail | OKK Koksovny, a.s. | 47675829 | Another legal entity | CZ080 | Detail |
| Detail | Okresní hospodářská komora Hodonín | 48532312 | Another legal entity | CZ064 | Detail |
| Detail | Okresní hospodářská komora Jihlava | 48910805 | Another legal entity | CZ063 | Detail |
| Detail | Okresní hospodářská komora Liberec | 48289027 | Another legal entity | CZ051 | Detail |
| Detail | Okresní hospodářská komora Mladá Boleslav | 46355049 | Another legal entity | CZ020 | Detail |