| Detail | ELMONTA s.r.o. | 07126590 | | | Detail |
| Detail | ELMONT-RONEX, s.r.o. | 08299455 | | | Detail |
| Detail | ELMOSEIN.cz s.r.o. | 24304891 | | | Detail |
| Detail | Elmoz Czech, s.r.o. | 47544929 | Czech Republic | CZ | Detail |
| Detail | ELNAD CZ spol. s r.o. | 27820564 | | | Detail |
| Detail | E - logistic s.r.o. | 02655667 | | | Detail |
| Detail | ELOS Technologies s.r.o. | 28327691 | | | Detail |
| Detail | ELPO s.r.o. | 26005221 | Sector contracting authority | CZ053 | Detail |
| Detail | ELPREMO, spol. s r.o. | 42869951 | | | Detail |
| Detail | Elpro - Energo s.r.o. | 25101129 | | | Detail |
| Detail | ELPROJEKT Group s.r.o. | 23969300 | | | Detail |
| Detail | ELPROMAT s.r.o. | 25537326 | | | Detail |
| Detail | ELRO Czech, s.r.o. | 04669754 | Czech Republic | CZ | Detail |
| Detail | ELRON CZ s.r.o. | 26387841 | Another entity | CZ01 | Detail |
| Detail | ELSI CZ s.r.o. | 06859101 | | | Detail |
| Detail | ELSOX s.r.o. | 24293644 | | | Detail |
| Detail | ELTE Holding a.s. | 46708111 | | | Detail |
| Detail | ELTODO, a.s. | 45274517 | | | Detail |
| Detail | ELTODO OSVĚTLENÍ, s.r.o. | 25751018 | | | Detail |
| Detail | ELTOM, s.r.o. | 25837117 | | | Detail |
| Detail | ELTRAF, a.s. | 46357483 | | | Detail |
| Detail | ELTRANS Liberec, s.r.o. | 25026313 | | | Detail |
| Detail | ELVIA - PRO,spol.s r.o. | 45243042 | | | Detail |
| Detail | Elvineo SC s.r.o. | 22522778 | | | Detail |
| Detail | ELVITECH s.r.o. | 06788840 | | | Detail |
| Detail | ELWACO s.r.o. | 29258979 | Another entity | CZ072 | Detail |
| Detail | ELZA Předměřice, s.r.o. | 27486630 | Another entity | CZ052 | Detail |
| Detail | ELZY servis s.r.o. | 28148002 | | | Detail |
| Detail | ELZY, spol. s r.o. | 42408571 | | | Detail |
| Detail | EMADO PARDUBICE, s.r.o. | 25297571 | | | Detail |
| Detail | EMADO, s.r.o. | 64827518 | | | Detail |
| Detail | EMBA, spol. s r. o. | 15044572 | | | Detail |
| Detail | EmbedIT s.r.o. | 17139708 | | | Detail |
| Detail | EMBEFOR s.r.o. | 06138900 | | | Detail |
| Detail | EMEA s.r.o. | 26898101 | | | Detail |
| Detail | Emerson Process Management, s.r.o. | 60487071 | | | Detail |
| Detail | EMET inovation s.r.o. | 24722979 | Another legal entity | CZ | Detail |
| Detail | Emil Frey ČR, s.r.o. | 45805270 | | | Detail |
| Detail | EMOS spol. s r.o. | 19014104 | | | Detail |
| Detail | EMPORIO group s.r.o. | 25475401 | | | Detail |
| Detail | EMU design s.r.o. | 03863743 | | | Detail |
| Detail | EMV oplocení s.r.o. | 07091621 | | | Detail |
| Detail | ENCO group, s.r.o. | 26828570 | | | Detail |
| Detail | Endokrinologický ústav | 00023761 | State contributory organization | CZ010 | Detail |
| Detail | Endress + Hauser Czech s.r.o. | 25708368 | | | Detail |
| Detail | Endum CZ s.r.o. | 03852024 | Another entity | CZ080 | Detail |
| Detail | ENERGA s.r.o., odštěpný závod | 21060959 | | | Detail |
| Detail | Energetická komunita Stolové hory, z. s. | 19486588 | Another legal entity | CZ052 | Detail |
| Detail | Energetická montážní společnost Liberec, s.r.o. | 62743325 | | | Detail |
| Detail | Energetické opravny, a.s. | 25040707 | | | Detail |
| Detail | Energetické společenství ORP Beroun, z.s. | 23616822 | Another legal entity | CZ020 | Detail |
| Detail | Energeticko-technický inovační klastr, z.s. | 02487641 | Another legal entity | CZ053 | Detail |
| Detail | Energeticko - vodárenský inovační klastr z.s. | 05365376 | Another entity | CZ053 | Detail |
| Detail | Energetický regulační úřad | 70894451 | Czech Republic | CZ063 | Detail |
| Detail | ENERGETIKA Ružomberok , spol. s r.o. | | | | Detail |
| Detail | ENERGETIKA TŘINEC, a.s. | 47675896 | Another legal entity | CZ080 | Detail |
| Detail | ENERGICO s.r.o. | 21646589 | | | Detail |
| Detail | ENERGIE AG BOHEMIA s.r.o. | 63908298 | Another legal entity | CZ010 | Detail |
| Detail | Energie AG Teplo Bohemia s.r.o. | 25072251 | Another legal entity | CZ020 | Detail |
| Detail | ENERGIE DIRECT, s.r.o. | 29237980 | | | Detail |
| Detail | ENERGIE Holding a.s. | 27594301 | Another legal entity | CZ042 | Detail |
| Detail | ENERGIE Prodej s.r.o. | 23066598 | | | Detail |
| Detail | Energie - stavební a báňská a.s. | 45146802 | | | Detail |
| Detail | Energie Teplárny Brno, s.r.o. | 19767447 | Another legal entity | CZ | Detail |
| Detail | Energie Vault s.r.o. | 17430984 | Another entity | CZ010 | Detail |
| Detail | Energie ze slunce s.r.o. | 14312638 | | | Detail |
| Detail | Energocentrum Vítkovice, a. s. | 03936040 | Another entity | CZ | Detail |
| Detail | ENERGOFOREST s.r.o. | 27606953 | Another entity | CZ031 | Detail |
| Detail | Energo IPT s.r.o. | 25583026 | Another legal entity | CZ064 | Detail |
| Detail | ENERGO KD s.r.o. | 48951412 | Another legal entity | CZ020 | Detail |
| Detail | Energomontáže Votroubek s.r.o. | 28791274 | | | Detail |
| Detail | ENERGON Grid, s.r.o. | 25727362 | | | Detail |
| Detail | ENERGOSERVIS ŠVAMONT, spol. s r.o. | 45144214 | | | Detail |
| Detail | ENERGOSPOL, s.r.o. | 26077078 | | | Detail |
| Detail | Energotrans, a.s. | 47115726 | Another entity | CZ | Detail |
| Detail | Energovod CZ, a.s. | 04155637 | | | Detail |
| Detail | ENERG-SERVIS a.s. | 25551132 | | | Detail |
| Detail | Energy Benefit Centre a.s. | 29029210 | | | Detail |
| Detail | Energy expert consulting, s.r.o. | 14391091 | | | Detail |
| Detail | Energylink s.r.o. | 05868513 | | | Detail |
| Detail | EnergySim s.r.o. | 01512129 | | | Detail |
| Detail | Energy Support, s.r.o. | 26328623 | | | Detail |
| Detail | ENERKOM Růže, z.s. | 17265134 | Territorial self-governing unit or its contributory organization | CZ031 | Detail |
| Detail | ENERKOM Slovácko, z. s. | 19317468 | Another entity | CZ072 | Detail |
| Detail | ENERKOM Šumavsko, z.s. | 18010679 | Another legal entity | CZ031 | Detail |
| Detail | Enerwise Advisory s.r.o. | 24395765 | | | Detail |
| Detail | ENESA a.s. | 27382052 | | | Detail |
| Detail | ENETEP s.r.o. | 25475681 | | | Detail |
| Detail | ENEX GROUP s.r.o. | 27223663 | Another legal entity | CZ | Detail |
| Detail | ENGEL s.r.o. | 46979727 | Another entity | CZ064 | Detail |
| Detail | Enjoy Production s.r.o. | 24208736 | Another legal entity | CZ | Detail |
| Detail | Enjoy Trade, s.r.o. | 26950707 | Czech Republic | CZ | Detail |
| Detail | ENKI, o.p.s. | 25173154 | Another legal entity | CZ031 | Detail |
| Detail | Ennill, spol. s r.o. | 01883089 | | | Detail |
| Detail | enovation services s.r.o. | 24751731 | | | Detail |
| Detail | enovation s.r.o. | 27909751 | Another legal entity | CZ010 | Detail |
| Detail | Enprom, s.r.o. | 04816820 | | | Detail |
| Detail | EnShield ES s.r.o. | 09763252 | | | Detail |
| Detail | EnShield Power s.r.o. | 21046468 | | | Detail |
| Detail | Entity Systems s.r.o. | 10730249 | Another entity | CZ010 | Detail |