| Detail | MAMSplus, s.r.o. | | | | Detail |
| Detail | Mamutov FUN, s. r. o. | 04202490 | | | Detail |
| Detail | MAMUT - THERM s.r.o. | 26885263 | | | Detail |
| Detail | MANAG, a.s. | 47906898 | | | Detail |
| Detail | MANDS International s.r.o. | 25586769 | | | Detail |
| Detail | manica s.r.o. | 02405474 | | | Detail |
| Detail | MANIFOLD GROUP s.r.o. | 26348764 | | | Detail |
| Detail | MANLOMKA s.r.o. | 27834425 | | | Detail |
| Detail | MANOSTAV Litoměřice s.r.o. | 09892214 | | | Detail |
| Detail | MantaAero s.r.o. | 10761268 | | | Detail |
| Detail | MAN Truck & Bus Czech Republic s.r.o. | 46965904 | | | Detail |
| Detail | Manu Inno s.r.o. | 03322220 | | | Detail |
| Detail | MAPA architekti s.r.o. | | | | Detail |
| Detail | MAP Building s.r.o. | 14385961 | | | Detail |
| Detail | MAPECO MOST a.s. | 25028685 | Another entity | CZ042 | Detail |
| Detail | MapKart s.r.o. | 25572822 | | | Detail |
| Detail | MAPO ambulance s.r.o. | 27790771 | | | Detail |
| Detail | Mapo Art s.r.o. | 09476113 | | | Detail |
| Detail | MAPODOS s.r.o. | 21676259 | | | Detail |
| Detail | MAPO pharma s.r.o. | 02689944 | | | Detail |
| Detail | MARATI s.r.o. | 03176100 | | | Detail |
| Detail | Marbes s.r.o. | 29108373 | | | Detail |
| Detail | Marcela Pešatová | 60244861 | | | Detail |
| Detail | Marcel Bubeník | 87081601 | | | Detail |
| Detail | Marcel Byrtus | 17942021 | | | Detail |
| Detail | Marco Dell'Agli Valletti | | | | Detail |
| Detail | Marek Adamec | 04923316 | | | Detail |
| Detail | Marek Balnar | 03156001 | Another entity | CZ080 | Detail |
| Detail | Marek Bašta | 63949521 | | | Detail |
| Detail | Marek Bořík | 76365646 | | | Detail |
| Detail | Marek Brhel | 07181680 | | | Detail |
| Detail | Marek Burdík | 01074237 | | | Detail |
| Detail | Marek Hodaň | 05397898 | | | Detail |
| Detail | Marek Lokajíček | 86802135 | | | Detail |
| Detail | Marek Pajer | 63329549 | Another entity | CZ | Detail |
| Detail | Marek Paneš | 05773458 | Another entity | CZ010 | Detail |
| Detail | Marek Procházka | 73400769 | | | Detail |
| Detail | Marek Schuster | 65406150 | | | Detail |
| Detail | Marek Vyleťal | 73641391 | | | Detail |
| Detail | MAREX INVESTMENT a.s. | 27528162 | | | Detail |
| Detail | Margita Kubjatková - MARGITA | 30550173 | Another entity | SK031 | Detail |
| Detail | MARHOLD a.s. | 15050050 | | | Detail |
| Detail | Mariana Halmanová | 86645544 | | | Detail |
| Detail | Marián Drobný | 73669610 | | | Detail |
| Detail | Marián Kaleta | 73364410 | Another entity | CZ080 | Detail |
| Detail | Marian Parzyk | 70323828 | | | Detail |
| Detail | Marián Steiger | 06019706 | | | Detail |
| Detail | Marián Šuba | 75197189 | | | Detail |
| Detail | MARINE s.r.o. | 42197058 | | | Detail |
| Detail | Marius Pedersen a.s. | 42194920 | | | Detail |
| Detail | Mark2 Corporation Czech a.s. | 25719751 | | | Detail |
| Detail | MARK BETON s.r.o. | 02302420 | Another legal entity | CZ032 | Detail |
| Detail | Markéta Faryová | 17568889 | | | Detail |
| Detail | Markéta Košařová | 21180008 | | | Detail |
| Detail | MARKETIN digital services, s.r.o. | 21746117 | | | Detail |
| Detail | Marketup s.r.o. | 25850504 | | | Detail |
| Detail | MARO Kralovice spol. s r. o. | 45357595 | | | Detail |
| Detail | Maropyll s.r.o. | 07183682 | | | Detail |
| Detail | MARPAL s.r.o. | | Another entity | SK | Detail |
| Detail | Marq software s.r.o. | 17374286 | | | Detail |
| Detail | MarS a.s. | 48152366 | | | Detail |
| Detail | MARSTEP s.r.o. | 07219822 | Another entity | CZ | Detail |
| Detail | MARTECH Teplo s.r.o. | 10782401 | Another legal entity | CZ01 | Detail |
| Detail | MARTIA a.s. | 25006754 | Another legal entity | CZ | Detail |
| Detail | Marti a.s. | | | | Detail |
| Detail | Marti a.s. - organizační složka ČR | 29032342 | | | Detail |
| Detail | Martina HOVORKOVÁ | 11213710 | | | Detail |
| Detail | Martina Jandáková | 66766443 | | | Detail |
| Detail | Martina Křížová | 75764687 | | | Detail |
| Detail | MARTINA SCHULMEISTEROVÁ | 63334127 | | | Detail |
| Detail | Martin Biemann | 19733291 | Another entity | CZ | Detail |
| Detail | Martin Bříza | 61204862 | Another entity | CZ053 | Detail |
| Detail | Martin Čech | 71818936 | | | Detail |
| Detail | Martin Čermák | 74129511 | Another entity | CZ051 | Detail |
| Detail | Martin Černosta | 13836757 | | | Detail |
| Detail | Martin Čuda | 48775533 | | | Detail |
| Detail | Martin Culka | 87332558 | | | Detail |
| Detail | Martin Dědek | 21280754 | | | Detail |
| Detail | Martines interiéry, s.r.o. | 28584953 | | | Detail |
| Detail | Martin Farka | | Another entity | CZ031 | Detail |
| Detail | Martin Havránek | 45613770 | | | Detail |
| Detail | Martin Hirth | 49496581 | Another legal entity | CZ020 | Detail |
| Detail | Martin Hlaváč | 23687231 | Another entity | CZ080 | Detail |
| Detail | MARTINICE GROUP s.r.o. | 24815799 | Another legal entity | CZ020 | Detail |
| Detail | Martin Jelínek | 88316823 | | | Detail |
| Detail | Martin Jiras | 62428535 | | | Detail |
| Detail | Martin Kapela | 67426531 | Another entity | CZ020 | Detail |
| Detail | Martin Koloušek | 03243168 | | | Detail |
| Detail | Martin Kořínek | 66106737 | | | Detail |
| Detail | Martin Košťál | 09172335 | | | Detail |
| Detail | Martin Kryš | 60976021 | | | Detail |
| Detail | Martin Lainz | 66307520 | | | Detail |
| Detail | Martin Linhart | 49858190 | Another entity | CZ020 | Detail |
| Detail | Martin Michálek | 42567980 | | | Detail |
| Detail | Martin Mojžíšek | 01730878 | | | Detail |
| Detail | Martin Mydlář | 66120306 | | | Detail |
| Detail | Martin Neruda Architektura s.r.o. | 22053018 | | | Detail |
| Detail | Martin Odehnal | 03713971 | | | Detail |
| Detail | Martin Páv | 88915018 | | | Detail |
| Detail | Martin Plíhal | 60145315 | | | Detail |
| Detail | Martin Průša, PAMS | 42423627 | | | Detail |
| Detail | Martin Seifert | 13237365 | | | Detail |
| Detail | Martin Slavíček | 64680665 | | | Detail |
| Detail | Martin Spáčil | 04998693 | | | Detail |
| Detail | Martin Stanislav | 14307316 | | | Detail |
| Detail | Martin Štěpánek | 09592075 | Another entity | CZ053 | Detail |
| Detail | Martin Štěpánek | 42941270 | | | Detail |
| Detail | MARTIN UHER bus, s.r.o. | 14367971 | Another legal entity | CZ020 | Detail |
| Detail | Martin Václav Bezucha | 14412845 | | | Detail |
| Detail | Martin Velek | | | | Detail |
| Detail | Martin Votruba | 42362997 | Another entity | CZ031 | Detail |
| Detail | Martin Žáček | 14069393 | | | Detail |
| Detail | Martin Žatečka | 04188047 | | | Detail |
| Detail | Martin Zelina | 65271963 | Another entity | CZ072 | Detail |
| Detail | Martin Žilák | 76345637 | | | Detail |
| Detail | MART-PLASTIC s.r.o. | 27532861 | Another entity | CZ053 | Detail |
| Detail | MaRvison s.r.o. | 09194991 | | | Detail |
| Detail | MARWEA Agency s.r.o. | 09534407 | | | Detail |
| Detail | MARY & POPP'S AGENCY, s.r.o. | 28822188 | | | Detail |
| Detail | Masarykova střední škola zemědělská a přírodovědná, Opava, příspěvková organizace | 47813130 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Masarykova základní škola Janovice nad Úhlavou okres Klatovy | 70873607 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | Masarykova základní škola, Stará Paka, okres Jičín | 70890072 | Territorial self-governing unit or its contributory organization | CZ052 | Detail |
| Detail | Masarykova základní škola Zásada, okres Jablonec nad Nisou, příspěvková organizace | 16389581 | State contributory organization | CZ051 | Detail |
| Detail | Masarykovo gymnázium, Střední zdravotnická škola a Vyšší odborná škola zdravotnická Vsetín | 00843351 | Territorial self-governing unit or its contributory organization | CZ072 | Detail |
| Detail | Masarykův onkologický ústav | 00209805 | State contributory organization | CZ064 | Detail |
| Detail | Maschinenring Česká republika s.r.o. | 03157164 | | | Detail |
| Detail | Mašek Daniel, Mgr., advokát | 47593687 | | | Detail |
| Detail | MASI-CO s.r.o. | 28402979 | | | Detail |
| Detail | MASKOP 99, spol. s r.o. | 47541717 | Another legal entity | CZ020 | Detail |
| Detail | Maso Brejcha s.r.o. | 26342545 | | | Detail |
| Detail | Maso Jičín s.r.o. | 48168408 | | | Detail |
| Detail | maso – uzeniny Gaube Miloslav s.r.o. | 02141990 | | | Detail |
| Detail | MasterDC s.r.o. | 26277557 | Another entity | CZ | Detail |
| Detail | MasterGun Czech, s.r.o. | 09001174 | Another entity | CZ | Detail |
| Detail | MASTER IT Technologies, a.s. | 27851931 | Another legal entity | CZ080 | Detail |
| Detail | MAT Domoušice s.r.o. | 24764582 | | | Detail |
| Detail | Matěj Baloun | 05903611 | Another entity | CZ031 | Detail |
| Detail | Matěj Jindra | 19941927 | | | Detail |
| Detail | MATĚJ ŘIČÁNEK, advokát | 87599953 | | | Detail |
| Detail | Matěj Šafr | 08892792 | | | Detail |
| Detail | Matěj Stropnický | | Another entity | CZ020 | Detail |
| Detail | Matěj Večeřa | 75894483 | | | Detail |
| Detail | MAT EMPORIO s.r.o. | 07524463 | | | Detail |
| Detail | MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s.r.o. | 25870807 | Another entity | CZ08 | Detail |
| Detail | Mateřská škola a Základní škola speciální NONA, o.p.s. | 25299140 | Another legal entity | CZ052 | Detail |
| Detail | Mateřská škola Bakov nad Jizerou, okres Mladá Boleslav | 70994986 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Mateřská škola Brušperk, Sportovní 520, příspěvková organizace | 75026431 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Mateřská škola Citice, příspěvková organizace | 75007100 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Mateřská škola HAPPY CHILD s.r.o. | 27613968 | Another entity | CZ010 | Detail |
| Detail | Mateřská škola Horní Jelení, příspěvková organizace | 60158115 | State contributory organization | CZ053 | Detail |