| Detail | BRIKLIS, spol. s r.o. | 43833497 | Another legal entity | CZ031 | Detail |
| Detail | BRIKWOOD s.r.o. | 28817923 | Another entity | CZ063 | Detail |
| Detail | Brněnská diecéze Církve československé husitské | 62160974 | Another legal entity | CZ064 | Detail |
| Detail | BRNIE, s.r.o. | 05448981 | Another legal entity | CZ064 | Detail |
| Detail | BROMIL s.r.o. | 28162692 | Czech Republic | CZ020 | Detail |
| Detail | B:TECH, a.s. | 05615348 | Another entity | CZ | Detail |
| Detail | Buďánka, z.ú. | 05822238 | Another legal entity | CZ010 | Detail |
| Detail | Budějovický Budvar, národní podnik, Budweiser Budvar, National Corporation, Budweiser Budvar, Entreprise Nationale | 00514152 | Another entity | CZ031 | Detail |
| Detail | BUILD LINE s.r.o. | 03809081 | Another entity | CZ010 | Detail |
| Detail | Bunge Czech s.r.o. | 24148032 | Another legal entity | CZ042 | Detail |
| Detail | BuranTeatr z.ú. | 27052460 | Another legal entity | CZ064 | Detail |
| Detail | BUSINESS INFORMATION SYSTEMS & SERVICES BISS, s.r.o. | 25284746 | Another legal entity | CZ053 | Detail |
| Detail | BVS HK s.r.o. | 25923579 | Another entity | CZ052 | Detail |
| Detail | Bydlení Lužec n. C, spol. s r. o. | 19258828 | Another legal entity | CZ052 | Detail |
| Detail | Bytop Zákupy s.r.o. | 22030531 | Another legal entity | CZ051 | Detail |
| Detail | Bytová správa Malé Svatoňovice | 60150645 | Territorial self-governing unit or its contributory organization | CZ052 | Detail |
| Detail | Bytová správa Ministerstva vnitra, s.p.o. | 65737393 | State contributory organization | | Detail |
| Detail | Bytové družstvo BYTSTAV Choceň | 25938185 | Another entity | CZ053 | Detail |
| Detail | Bytové družstvo Cvikovská 3 | 25655591 | Another legal entity | CZ010 | Detail |
| Detail | Bytové družstvo Zubatého 1 | 01791931 | Another legal entity | CZ010 | Detail |
| Detail | CANNONEER group s.r.o. | 27959147 | Another entity | CZ010 | Detail |
| Detail | Čáp CZ s.r.o. | 28761928 | Another entity | CZ010 | Detail |
| Detail | CAPITAL REFRACTORIES s.r.o. | 25881728 | Another legal entity | CZ080 | Detail |
| Detail | CARBIDE, s.r.o. | 25524879 | Another legal entity | CZ063 | Detail |
| Detail | CARLING, spol. s r. o. | 45477680 | Another legal entity | CZ064 | Detail |
| Detail | Carpe Orbis, z. s. | 05211727 | Another legal entity | CZ | Detail |
| Detail | CARRY TECH INDUSTRIES s.r.o. | 27300242 | Another legal entity | CZ | Detail |
| Detail | Carter\reproplus s.r.o. | 49356828 | Another legal entity | CZ010 | Detail |
| Detail | CasInvent Pharma, a.s. | 09684221 | Czech Republic | CZ064 | Detail |
| Detail | CASRI (Vědecké a servisní pracoviště tělesné výchovy a sportu) | 49366378 | State contributory organization | CZ010 | Detail |
| Detail | CCOE s.r.o. | 04422066 | Another legal entity | CZ010 | Detail |
| Detail | Cecemínsko | 71199845 | Another legal entity | CZ020 | Detail |
| Detail | CECHO - BOHUMIL CEMPÍREK s.r.o. | 27680703 | Another entity | CZ | Detail |
| Detail | CEDR - komunitní spolek | 26590735 | Another entity | CZ042 | Detail |
| Detail | Cemex Czech Republic s.r.o. | 27892638 | Another entity | CZ010 | Detail |
| Detail | C-energy s.r.o. | 25106481 | Another entity | CZ031 | Detail |
| Detail | Centrála cestovního ruchu Olomouckého kraje, s.r.o. | 08658251 | Another legal entity | CZ071 | Detail |
| Detail | Centrální nákup Plzeňského kraje, příspěvková organizace | 72046635 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | Centrální polytechnické dílny, z.s. | 02058774 | Another legal entity | CZ053 | Detail |
| Detail | Centrální školní jídelna Litoměřice, Svojsíkova 7 | 46768793 | Territorial self-governing unit or its contributory organization | CZ042 | Detail |
| Detail | CENTRA STAV s.r.o. | 25247107 | Czech Republic | CZ01 | Detail |
| Detail | Centrum ÁČKO, příspěvková organizace | 00851710 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Centrum aplikovaného výzkumu a dalšího vzdělávání, o.p.s. | 28154975 | Another legal entity | CZ031 | Detail |
| Detail | Centrum BAZALKA, o.p.s. | 26064073 | Another legal entity | CZ031 | Detail |
| Detail | Centrum Český Krumlov a.s. | 28818164 | Another legal entity | CZ010 | Detail |
| Detail | Centrum denních služeb Čtyřlístek, z.ú. | 09657452 | Another legal entity | CZ041 | Detail |
| Detail | Centrum experimentálního divadla, příspěvková organizace | 00400921 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | CENTRUM HYDRAULICKÉHO VÝZKUMU spol. s r.o. | 28645413 | Another legal entity | CZ071 | Detail |
| Detail | Centrum kardiovaskulární a transplantační chirurgie Brno | 00209775 | State contributory organization | CZ064 | Detail |
| Detail | Centrum Kociánka | 00093378 | State contributory organization | CZ064 | Detail |
