| Detail | MATTECH, s.r.o. | 47973064 | Another entity | CZ080 | Detail |
| Detail | Matteva s.r.o. | 07502435 | | | Detail |
| Detail | MATURE TEPLICE s.r.o. | 60490420 | Czech Republic | CZ042 | Detail |
| Detail | Matyáš Differenz | 23671262 | | | Detail |
| Detail | Matyáš Malát | 21697337 | | | Detail |
| Detail | MAX CARS Training s.r.o. | 01381521 | | | Detail |
| Detail | MAXPROGRES, s.r.o. | 25307126 | | | Detail |
| Detail | MAX SERVISNÍ CENTRUM s.r.o. | 15051927 | Another legal entity | CZ010 | Detail |
| Detail | MAZÁK Invest s.r.o. | 01385623 | Czech Republic | CZ | Detail |
| Detail | Mazel a partneři, advokátní kancelář, s.r.o. | 08164258 | | | Detail |
| Detail | Mazurová Eva, MgA. | 70772851 | | | Detail |
| Detail | MBE Partners s.r.o. | 23557621 | | | Detail |
| Detail | MBG, spol. s r. o. | 47973773 | Another legal entity | CZ071 | Detail |
| Detail | MBL CZ s.r.o. | 03549518 | | | Detail |
| Detail | MBL spol. s r.o. | 26312956 | | | Detail |
| Detail | mBlue Czech, s.r.o. | 24193119 | | | Detail |
| Detail | MCA atelier s.r.o. | 27418634 | | | Detail |
| Detail | MCAE Systems, s.r.o. | 60755431 | | | Detail |
| Detail | McCANN-ERICKSON PRAGUE spol. s r.o., INTERNATIONAL ADVERTISING AGENCY | 17046041 | Czech Republic | CZ | Detail |
| Detail | MC elektro, s.r.o. | 27775968 | | | Detail |
| Detail | MCI SERVIS s.r.o. | 27718158 | Another entity | CZ072 | Detail |
| Detail | MCK COMMERCE LTD - pobočka | 04985842 | | | Detail |
| Detail | MCnet, s.r.o. | 25394720 | | | Detail |
| Detail | M Computers s.r.o. | 26042029 | | | Detail |
| Detail | M.C.O.M. s.r.o. | 63216221 | | | Detail |
| Detail | M.C.TRITON, spol. s r.o. | 49622005 | | | Detail |
| Detail | MCU KOLOSEUM, o.p.s. | 25405080 | Another legal entity | CZ051 | Detail |
| Detail | MD4U s.r.o. | 22066063 | | | Detail |
| Detail | M&D Building Group s.r.o. | 22443673 | | | Detail |
| Detail | M-DOST s.r.o. | 09862021 | Czech Republic | CZ010 | Detail |
| Detail | MDP GEO, s.r.o. | 25588303 | | | Detail |
| Detail | MDS projekt s.r.o. | 27487938 | | | Detail |
| Detail | MDS solution s.r.o. | 07674856 | | | Detail |
| Detail | MD technik, s.r.o. | 06798926 | | | Detail |
| Detail | MEANDER PROJEKT s.r.o. | 28968255 | | | Detail |
| Detail | MEAPFORNI SRL | | | | Detail |
| Detail | MEAS Prog. s.r.o. | 26728613 | | | Detail |
| Detail | MEBSTER s.r.o. | 06947549 | Another legal entity | CZ010 | Detail |
| Detail | MEDATRON, spol. s r.o. | 65277996 | | | Detail |
| Detail | MEDEON s.r.o. | 26288371 | | | Detail |
| Detail | MEDESA care s.r.o. | 63323818 | | | Detail |
| Detail | MEDESA s.r.o. | 64254577 | | | Detail |
| Detail | MEDEXIM Ostrava s.r.o. | 60777621 | Another legal entity | CZ080 | Detail |
| Detail | MEDIA AGE s.r.o. | 26977958 | | | Detail |
| Detail | MediaCall, s.r.o. | 24198013 | | | Detail |
| Detail | Media CZ s.r.o. | 00671487 | | | Detail |
| Detail | MEDIA EFEKT, s.r.o. | 25518640 | Czech Republic | CZ064 | Detail |
| Detail | MEDIAL spol. s r.o. | 14892901 | | | Detail |
| Detail | MEDIA MARKET s.r.o. | 40767213 | | | Detail |
| Detail | MEDIAN, s.r.o. | 48587001 | | | Detail |
| Detail | MediaStream, s.r.o. | 27111920 | Czech Republic | CZ | Detail |
| Detail | MEDIA TRADING CZ s.r.o. | 27224961 | | | Detail |
| Detail | MEDICA FILTER spol. s r.o. | 00669555 | | | Detail |
| Detail | Medicalc software s.r.o. | 26350513 | | | Detail |
| Detail | MEDICAL M spol. s r.o. | 47287128 | | | Detail |
| Detail | Medical Systems a.s. | 26853167 | | | Detail |
| Detail | Medicaltech s.r.o. | 27551202 | | | Detail |
| Detail | MEDICA Třinec, z.ú. | 05115841 | Another entity | CZ080 | Detail |
| Detail | MEDICCO s.r.o. | 24206539 | | | Detail |
| Detail | Medici - H International Medical Products, spol. s r.o. | 49621254 | | | Detail |
| Detail | MEDIC KRAL s.r.o. | 27372791 | Another legal entity | CZ | Detail |
| Detail | Mediclinic a.s. | 27918335 | | | Detail |
| Detail | MediCom, a.s. Praha | 00538078 | | | Detail |
| Detail | Medicontur CZ s.r.o. | 02400758 | | | Detail |
| Detail | MEDICOPROJECT, s.r.o. | 60703016 | | | Detail |
| Detail | MEDICROSS s. r. o. | 26845890 | | | Detail |
| Detail | Medicton Group s.r.o. | 27485391 | | | Detail |
| Detail | MEDIELGAS spol., s.r.o. | 48535826 | | | Detail |
| Detail | MEDIFINE a.s. | 27718948 | | | Detail |
| Detail | Mediform, spol. s r.o. | 49976770 | | | Detail |
| Detail | Medihome s.r.o. | 10974512 | | | Detail |
| Detail | MEDILAB ČR s.r.o. | 25944991 | Sector contracting authority | CZ052 | Detail |
| Detail | MeDiLa spol. s r.o. | 63217767 | Another legal entity | CZ053 | Detail |
| Detail | MEDILAS s.r.o. | 49713612 | | | Detail |
| Detail | MEDIMPLANT, s.r.o. | 47901071 | | | Detail |
| Detail | MEDIN, a.s. | 43378030 | | | Detail |
| Detail | Medinet s.r.o. | 47538198 | | | Detail |
| Detail | MEDIO BRAND s.r.o. | 24790524 | | | Detail |
| Detail | MEDIPRAX CB s.r.o. | 63886731 | | | Detail |
| Detail | Medirecord CZ s.r.o. | 27617262 | | | Detail |
| Detail | medisap,s.r.o. | 48029360 | | | Detail |
| Detail | MEDISCO Praha, s.r.o. | 63986621 | | | Detail |
| Detail | MEDISERVIS s.r.o. | 27201864 | | | Detail |
| Detail | Mediset-Chironax s.r.o. | 48200417 | | | Detail |
| Detail | MEDISTAR CZ spol. s r.o. | 25428292 | | | Detail |
| Detail | MEDISTA spol.s r.o. | 60199865 | | | Detail |
| Detail | MEDISTYL-PHARMA a.s. | 61855782 | | | Detail |
| Detail | MEDISUN profi s.r.o. | 02401045 | | | Detail |
| Detail | MEDISYNER s.r.o. | 24815349 | | | Detail |
| Detail | MEDITERRA s.r.o. | 49686356 | Czech Republic | CZ010 | Detail |
| Detail | MEDIVET INTERNATIONAL s.r.o. | 25106058 | | | Detail |
| Detail | Mediz, s.r.o. | 09995668 | | | Detail |
| Detail | MEDKONSULT, s. r. o. | 47679522 | | | Detail |
| Detail | Medline International CZ s.r.o. | 13959891 | | | Detail |
| Detail | Med Pavlík architekti s.r.o. | 05765871 | | | Detail |
| Detail | Medsol s.r.o. | 24201596 | Another entity | CZ | Detail |
| Detail | Medstav s.r.o. | 17082455 | | | Detail |
| Detail | MEDtechnic services s.r.o. | 03175651 | | | Detail |
| Detail | MEDTEC - VOP, spol. s r.o. | 64791319 | Another entity | CZ052 | Detail |
| Detail | Medtronic Czechia s.r.o. | 64583562 | | | Detail |
| Detail | MEDUNA vakuová kalírna s.r.o. | 28847555 | Another entity | CZ | Detail |
| Detail | MEFISTO s.r.o. | 49357948 | | | Detail |
| Detail | MEGATOP s.r.o. | 26967111 | | | Detail |
| Detail | MEIVA s.r.o. | 14356988 | | | Detail |
| Detail | MEKOS GROUP a.s. | 26821834 | | | Detail |
| Detail | Melies s.r.o. | 26204177 | | | Detail |
| Detail | MELKOV-WH s.r.o. | 17671973 | | | Detail |
| Detail | Melon s.r.o. | 26865726 | | | Detail |
| Detail | MeMed CZ s.r.o. | 24702722 | | | Detail |
| Detail | MENCL GROUP, s.r.o. | 14166011 | | | Detail |
| Detail | Mendelova střední škola, Nový Jičín, příspěvková organizace | 00845027 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | MENE Industry s.r.o. | 61171344 | | | Detail |
| Detail | MENERT spol. s r.o. | | | | Detail |
| Detail | MENHIR Praha, s.r.o. | 27615219 | Another entity | CZ010 | Detail |
| Detail | MENS SANA, z.ú. | 65469003 | Another entity | CZ080 | Detail |
| Detail | MENTARI green s.r.o. | 13997696 | | | Detail |
| Detail | MENZO, a.s. | 28203526 | | | Detail |
| Detail | Meopta - optika, s.r.o. | 47677023 | Another legal entity | CZ071 | Detail |
| Detail | Mepabuild s.r.o. | 09348239 | | | Detail |
| Detail | MěPOS, příspěvková organizace | 00562238 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | MERAT s.r.o. | 04817711 | | | Detail |
| Detail | MERCED a.s. | 25668820 | | | Detail |
| Detail | MERCI, s.r.o. | 46966447 | Another legal entity | CZ064 | Detail |
| Detail | MERCON, s.r.o. | 46576274 | | | Detail |
| Detail | MERIDA CZECH, s.r.o. | 25509136 | | | Detail |
| Detail | Merida Hradec Králové, s.r.o. | 49815288 | | | Detail |
| Detail | MERIIS, s.r.o. | 26210240 | | | Detail |
| Detail | MERIT GROUP a.s. | 64609995 | | | Detail |
| Detail | MERKURIA - ARTES a.s. | 15062465 | Another legal entity | CZ052 | Detail |
| Detail | MERKUR TOYS s.r.o. | 25997386 | Another legal entity | CZ | Detail |
| Detail | Merligo s.r.o. | 23385383 | | | Detail |
| Detail | MEROPS spol. s r.o. | 25394282 | | | Detail |
| Detail | Mesarc s.r.o. | 22129421 | | | Detail |
| Detail | MESIT asd, s.r.o. | 60709235 | | | Detail |
| Detail | MESSA Invest s.r.o. | 25319540 | | | Detail |
| Detail | Messer Technogas s.r.o. | 40764788 | | | Detail |
| Detail | MeŠ - STAVBY s.r.o. | 27833828 | | | Detail |
| Detail | Město Adamov | 00279889 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Město Aš | 00253901 | Territorial self-governing unit or its contributory organization | | Detail |
| Detail | Město Bakov nad Jizerou | 00237418 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Město Bavorov | 00250945 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Město Bechyně | 00252069 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | Město Bělá nad Radbuzou | 00253235 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | Město Bílina | 00266230 | Territorial self-governing unit or its contributory organization | CZ042 | Detail |
| Detail | Město Bílovec | 00297755 | Territorial self-governing unit or its contributory organization | CZ080 | Detail |
| Detail | Město Blansko | 00279943 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |
| Detail | Město Blovice | 00256455 | Territorial self-governing unit or its contributory organization | CZ032 | Detail |
| Detail | Město Bor | 00259713 | Territorial self-governing unit or its contributory organization | CZ | Detail |
| Detail | Město Brandýs nad Labem-Stará Boleslav | 00240079 | Territorial self-governing unit or its contributory organization | CZ020 | Detail |
| Detail | Město Břeclav | 00283061 | Territorial self-governing unit or its contributory organization | CZ064 | Detail |