| Detail | JR stavby CZ, s.r.o. | 26875080 | | | Detail |
| Detail | JSF stavební s.r.o. | 05568714 | | | Detail |
| Detail | JS-import s.r.o. | 06575552 | | | Detail |
| Detail | J&S stav s.r.o. | 29314674 | | | Detail |
| Detail | JUBAR PLUS CZ, s.r.o. | 04915712 | | | Detail |
| Detail | Jubilejní Masarykova základní škola a mateřská škola Sedliště | 61963607 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Jubosa s.r.o. | 02045192 | | | Detail |
| Detail | JUDr. Bc. Marcela Lafek, advokátní kancelář | 08825661 | | | Detail |
| Detail | JUDr. DOMINIK FOJTŮ, advokát | 05416507 | | | Detail |
| Detail | JUDr. Jaromír Štůsek - advokát | 73628301 | | | Detail |
| Detail | JUDr. Jindřich Vítek, advokát | 63622777 | | | Detail |
| Detail | JUDr. Jiří Pokorný, Ph.D., advokát | 86944312 | | | Detail |
| Detail | JUDr. Kamil Jelínek, advokátní kancelář | 88120872 | | | Detail |
| Detail | JUDr. Kateřina Krylová | 40572340 | | | Detail |
| Detail | JUDr. Marcela Káňová, Ph.D., advokát | 06873596 | | | Detail |
| Detail | JUDr. Milan Kocík | 01865757 | | | Detail |
| Detail | JUDr. Pavel Zajíc, advokát | 64128831 | | | Detail |
| Detail | JUDr. Pavla Martínková, advokátka | 71464069 | | | Detail |
| Detail | JUDr. Petr Suchomel, advokát | 11930098 | Another entity | CZ010 | Detail |
| Detail | JUDr. Zdeňka Novotná | 06305199 | Another entity | CZ031 | Detail |
| Detail | JUKO petfood s.r.o. | 27714250 | | | Detail |
| Detail | Jules Verne IO s.r.o. | 24981371 | | | Detail |
| Detail | Julius Oláh | 49738593 | | | Detail |
| Detail | JUMING s.r.o. | 25920219 | Another entity | CZ | Detail |
| Detail | JUMP FAMILY s.r.o. | 01918532 | Another entity | CZ042 | Detail |
| Detail | JUMP-TANDEM s.r.o. | 27705587 | | | Detail |
| Detail | Junák - český skaut, středisko Dýmka Habartov, z. s. | 62638726 | Another entity | CZ | Detail |
| Detail | Junák - český skaut, středisko Ležáky Skuteč, z. s. | 15054179 | Another legal entity | CZ053 | Detail |
| Detail | Junák - český skaut, středisko Moravská Orlice Moravské Budějovice, z. s. | 60418648 | Another legal entity | CZ063 | Detail |
| Detail | Junák - český skaut, středisko Oheň Most, z. s. | 41324919 | Another legal entity | CZ | Detail |
| Detail | Junák - český skaut, středisko Střela Plzeň, z. s. | 49777998 | Another entity | CZ032 | Detail |
| Detail | Junák - český skaut, z. s. | 00409430 | Another legal entity | CZ010 | Detail |
| Detail | JUREX VOS, s.r.o. | 12895679 | | | Detail |
| Detail | Justiční akademie | 70961808 | Czech Republic | | Detail |
| Detail | JUSTITIA CONSULTING PARTNERS, s.r.o. | 04549431 | Territorial self-governing unit or its contributory organization | CZ010 | Detail |
| Detail | JUST IT Solutions s.r.o. | 29298466 | Another legal entity | CZ064 | Detail |
| Detail | JUSTMEAT s.r.o. | 09160973 | Another legal entity | CZ053 | Detail |
| Detail | Juta Agency s.r.o. | 04496833 | | | Detail |
| Detail | JUVENFORM s.r.o. | 27806596 | | | Detail |
| Detail | JVAgro Morava s.r.o. | 26826411 | | | Detail |
| Detail | JVK Energy s.r.o. | 22136584 | | | Detail |
| Detail | JV logistika s.r.o. | 07258054 | Another entity | CZ053 | Detail |
| Detail | JVP Praha a.s. | 64949125 | Czech Republic | CZ01 | Detail |
| Detail | JV PROJEKT VH s.r.o. | 26917581 | | | Detail |
| Detail | JVV GINKGO s.r.o. | 25219456 | | | Detail |
| Detail | JV Zahrady s.r.o. | 23014130 | | | Detail |
| Detail | K200 s.r.o. | | | | Detail |
| Detail | K2 atmitec s.r.o. | 42767717 | | | Detail |
| Detail | K2 INDUSTRY, s.r.o. | 27528812 | | | Detail |
| Detail | K2 Lešení, s.r.o. | 28746694 | Another entity | CZ042 | Detail |
| Detail | K2 Machine s.r.o. | 28822978 | Another legal entity | CZ053 | Detail |
| Detail | K2S Facility, spol. s r.o. | 04561325 | | | Detail |
| Detail | K2 Solartech s.r.o. | 17224501 | | | Detail |
| Detail | K2 stavební Moravia s.r.o. | 28573994 | | | Detail |
| Detail | k3nn3t s.r.o. | 17419735 | | | Detail |
| Detail | K3 SPORT, s.r.o. | 26830248 | Another legal entity | CZ | Detail |
| Detail | KABEL 1 informační technologie s.r.o. | 28967747 | | | Detail |
| Detail | KABELOVÉ BUBNY A BEDNY, s.r.o. | 46969691 | Another legal entity | CZ063 | Detail |
| Detail | KABEL TRADE PRAHA s.r.o. | 25613383 | | | Detail |
| Detail | KABILA Group s.r.o. | 24273406 | | | Detail |
| Detail | KABLANĚ, spol. s r.o. | 49284886 | Another entity | CZ053 | Detail |
| Detail | KABLIK NET s.r.o. | 06127533 | | | Detail |
| Detail | Kabr.cz s.r.o. | 29146330 | Another entity | CZ042 | Detail |
| Detail | Kácení Šarapatka s.r.o. | 06667490 | | | Detail |
| Detail | KACUR STAVBY s.r.o. | 10696466 | | | Detail |
| Detail | KADAŇKA stav s.r.o. | 05388651 | | | Detail |
| Detail | KAD&B s.r.o. | 09629483 | | | Detail |
| Detail | Kadlec - elektronika, s.r.o. | 25518402 | | | Detail |
| Detail | KADMARSTAV s.r.o. | 28654242 | | | Detail |
| Detail | KA-EM Gastrotechnik s.r.o. | 01402242 | | | Detail |
| Detail | KaeM TECH s.r.o. | 10907599 | | | Detail |
| Detail | KAHAA ATELIER s.r.o. | 09046097 | | | Detail |
| Detail | KaHa Hranice s.r.o. | 26835703 | | | Detail |
| Detail | KAHIM stavby s.r.o. | 28565746 | Czech Republic | CZ080 | Detail |
| Detail | Kaiser & spol. CZ s.r.o. | 47536161 | | | Detail |
| Detail | KAISER s.r.o. | 26733102 | Another legal entity | CZ020 | Detail |
| Detail | K a K stavoinvesta, s.r.o. | 46966218 | | | Detail |
| Detail | KAK zakázkový servis s.r.o. | 06294863 | | | Detail |
| Detail | KALAHA a.s. | 25562151 | | | Detail |
| Detail | Kalcit s.r.o. | 26245311 | Another entity | CZ064 | Detail |
| Detail | Kalin, spol. s r.o. | 25607782 | | | Detail |
| Detail | KALTMEYER s.r.o. | 25753681 | | | Detail |
| Detail | KALVEI, s.r.o. | 60720832 | | | Detail |
| Detail | KAMEBA s.r.o. | 21493081 | | | Detail |
| Detail | KÁMEN ENGINEERING s.r.o. | 47455560 | Another legal entity | CZ052 | Detail |
| Detail | Kamenolom KUBO s.r.o. | 25447581 | | | Detail |
| Detail | KAMENOLOMY ČR s.r.o. | 49452011 | Another legal entity | CZ | Detail |
| Detail | Kamila Vojtová | 48283681 | | | Detail |
| Detail | Kamil Elšík | 41580125 | | | Detail |
| Detail | Kamil Gellner | 14857979 | Another entity | CZ042 | Detail |
| Detail | Kamil Jůzl | 72616181 | | | Detail |
| Detail | Kamil Kublák | 65493656 | Another entity | CZ080 | Detail |
| Detail | Kamil Maralík | 08656258 | | | Detail |
| Detail | Kamil Mrva Architects & partners s.r.o. | 22277811 | | | Detail |
| Detail | Kamil Mrva Architects, s.r.o. | 28647611 | | | Detail |
| Detail | KAMI PROFIT, s.r.o. | 35943301 | | | Detail |
| Detail | KAMI PROFIT, s.r.o. | | | | Detail |
| Detail | KAMI PROFIT, s.r.o., odštěpný závod | 05264758 | | | Detail |
| Detail | KAMON Plzeň s.r.o. | 21508674 | | | Detail |
| Detail | KAMPI OFFICE s.r.o. | 25344170 | | | Detail |
