| Name | Account holder number (AIB code) | Type | Authorized issuing body |
| AKZ INFRA, s. r. o. | 20XAKZINF8 | Supplier | OKTE |
| Arcos FM SK, s.r.o. | 20XARCOSF6 | Supplier | OKTE |
| AUTONOVA, s. r. o. | 20XAUTNOVV | Producer | OKTE |
| Axpo Solutions AG | 20XAXPOSK3 | Supplier | OKTE |
| BAUER IRRIGATION, spol. s.r.o. | 20XBAUIRIW | Producer | OKTE |
| Bidfood Slovakia s. r. o. | 20XBIDFODS | Producer | OKTE |
| BILLA s.r.o. | 20XBILLAAC | Producer | OKTE |
| Bóna LABELS, s.r.o. | 20XBONLAB[ | Producer | OKTE |
| Calmit, spol. s r.o. | 20XCALMITN | Producer | OKTE |
| CBA VEREX, a.s. | 20XCBAVERG | Supplier | OKTE |
| CBA VEREX, a.s. | 20XCBAVERG | Producer | OKTE |
| CD - profil s.r.o. | 20XCDPROFB | Producer | OKTE |
| CEMMAC a.s. | 20XCEMMACG | Producer | OKTE |
| CHETRA SK, s. r. o. | 20XCHETRAZ | Producer | OKTE |
| CHETRA SK, s. r. o. | 20XCHETRAZ | Auction participant | OKTE |
| CHYOSLA - STAV, s.r.o. | 20XCHYOSL2 | Producer | OKTE |
| CHYOSLA - STAV, s.r.o. | 20XCHYOSL2 | Supplier | OKTE |
| CTP Energy SK, spol. s r. o. | 20XCTPNRGS | Supplier | OKTE |
| ČEZ, a.s. | 20XCEZCZAS | Supplier | OKTE |
| ČEZ, a.s. | 20XCEZCZAS | Auction participant | OKTE |
| Delta Electronics (Slovakia), s.r.o. | 20XDELTAEI | Supplier | OKTE |
| Delta Electronics (Slovakia), s.r.o. | 20XDELTAEI | Auction participant | OKTE |
| DHOLLANDIA CENTRAL EUROPE s.r.o. | 20XDHCEEUP | Producer | OKTE |
| Didaktik, družstvo | 20XDIDADR3 | Producer | OKTE |
| Domäsko s.r.o. | 20XDOMSKOF | Supplier | OKTE |
| Domäsko s.r.o. | 20XDOMSKOF | Producer | OKTE |
| Dopravný podnik mesta Žiliny s.r.o. | 20XDOPMZA7 | Producer | OKTE |
| Druhá levická kontrolná spol. s r.o. | 20XDRLEKOM | Producer | OKTE |
| Duslo, a.s. | 20XDUSLASZ | Supplier | OKTE |
| Duslo, a.s. | 20XDUSLASZ | Auction participant | OKTE |
| Duslo Energy s.r.o. | 20XDUSLENX | Supplier | OKTE |
| Econ KF s.r.o. | 20XECONKF[ | Producer | OKTE |
| EDS International SK, s. r. o. | 20XEDSISKW | Supplier | OKTE |
| EDS International SK, s. r. o. | 20XEDSISKW | Auction participant | OKTE |
| EKOM spol. s r. o. | 20XEKOMSPK | Supplier | OKTE |
| EKOM spol. s r. o. | 20XEKOMSPK | Producer | OKTE |
| Elektroenergetické Služby, s. r. o. | 20XELENRG9 | Supplier | OKTE |
| Elektroenergetické Služby, s. r. o. | 20XELENRG9 | Auction participant | OKTE |
| ELGAS, s.r.o. | 20XELGASK4 | Supplier | OKTE |
| ELGAS, s.r.o. | 20XELGASK4 | Auction participant | OKTE |
| encare, s.r.o. | 20XENCARER | Supplier | OKTE |
| encare, s.r.o. | 20XENCARER | Auction participant | OKTE |
| Energie Inak s.r.o. | 20XENRGIN9 | Supplier | OKTE |
| Energie Inak s.r.o. | 20XENRGIN9 | Auction participant | OKTE |
| Energie2, a.s. | 20XENERG26 | Supplier | OKTE |
| Energie2, a.s. | 20XENERG26 | Auction participant | OKTE |
| ENERGY DISTRIBUTION a.s. | 20XENEDIS4 | Supplier | OKTE |
| ENERGY DISTRIBUTION a.s. | 20XENEDIS4 | Auction participant | OKTE |
| ENERGY DISTRIBUTION a.s. | 20XENEDIS4 | Producer | OKTE |
| ENERGY ONE, s. r. o. | 20XENEONE9 | Supplier | OKTE |
| Enery Solar SK 2 a.s. | 20XENERY2O | Producer | OKTE |
| Enery Solar SK 2 a.s. | 20XENERY2O | Supplier | OKTE |
| EP ENERGY TRADING, a.s., organizačná zložka | 20XEPETSKM | Supplier | OKTE |
| E-Power Supply s.r.o. | 20XEPWSPLF | Supplier | OKTE |
| ESCO Distribučné sústavy a.s. | 20XCEZDSA9 | Supplier | OKTE |
| EUROPA CENTER, s. r. o. | 20XEURCENV | Supplier | OKTE |
| EUROPA CENTER, s. r. o. | 20XEURCENV | Auction participant | OKTE |
| EUROPA SC a.s. | 20XEUROSCZ | Supplier | OKTE |
| EUROPA SC a.s. | 20XEUROSCZ | Auction participant | OKTE |
| Europapier Slovensko, s. r. o. | 20XEURPPRA | Producer | OKTE |
| EUROVIA SK, a.s. Košice | 20XEURVIA5 | Producer | OKTE |
| FENESTRA Sk, spol. s r.o. | 20XFENSTRN | Producer | OKTE |
| FINEZ s.r.o. | 20XFINEZAZ | Producer | OKTE |
| Franke Slovakia s.r.o. | 20XFRANKEB | Producer | OKTE |
| Gabor spol. s r.o. | 20XGABORSC | Producer | OKTE |
| GCT Glass and Crystal Trading s.r.o. | 20XGCTGCTL | Producer | OKTE |
| G&E Trading, a.s. | 20XGANDETX | Supplier | OKTE |
| GRAFOBAL, akciová spoločnosť | 20XGRAFBLD | Producer | OKTE |
| GRAND POWER, s.r.o. | 20XGRAPOWK | Producer | OKTE |
| GREEN ENERGY CEROVÁ, s.r.o. | 20XGRENCE8 | Producer | OKTE |
| green energy slovakia, s.r.o. | 20XGRENSLI | Producer | OKTE |
| Greenlogy a.s. | 20XGREENLX | Supplier | OKTE |
| Greenlogy a.s. | 20XGREENLX | Auction participant | OKTE |
| HEC Services II, s. r. o. | 20XHECSK2X | Supplier | OKTE |
| HEC Services II, s. r. o. | 20XHECSK2X | Auction participant | OKTE |
| HEC Services, s. r. o. | 20XHECSK1Z | Supplier | OKTE |
| HEC Services, s. r. o. | 20XHECSK1Z | Auction participant | OKTE |
| HOPI SK s.r.o. | 20XHOPISKW | Producer | OKTE |
| HORNBACH – Baumarkt SK spol. s r.o. | 20XHORNBA1 | Producer | OKTE |
| HTMAS s.r.o | 20XHTMAS1F | Supplier | OKTE |
| HTMAS s.r.o | 20XHTMAS1F | Auction participant | OKTE |
| HYDINA HOLDING, s.r.o. | 20XHYDHOLA | Producer | OKTE |
| HYDINA KUBUS s. r. o. | 20XHYDKUB[ | Producer | OKTE |
| HYDRO-ENERGY a.s. | 20XHYDENE3 | Producer | OKTE |
| HYKEMONT spol. s r.o. | 20XHYKMNTE | Producer | OKTE |
| IKEA Industry Slovakia s.r.o. | 20XIKEAING | OKTE | |
| ISTROCENTRUM s. r. o. | 20XISTROC9 | Supplier | OKTE |
| ISTROCENTRUM s. r. o. | 20XISTROC9 | Auction participant | OKTE |
| Jadrová energetická spoločnosť Slovenska, a. s. | 20XJADROE6 | Supplier | OKTE |
| Jadrová energetická spoločnosť Slovenska, a. s. | 20XJADROE6 | Producer | OKTE |
| Jozef Figeľ - KOV-NZPÚ | 20XJOFIKOC | Producer | OKTE |
| JP-AUTO, s. r. o. | 20XJPAUTOS | Producer | OKTE |
| JT - PARTNER, s.r.o. | 20XJTPART5 | Producer | OKTE |
| KAFFEX, spoločnosť s ručením obmedzeným | 20XKAFFEXT | Producer | OKTE |
| KLF-ENERGETIKA, a.s. | 20XKLFENEE | Supplier | OKTE |
| KMF SLOVAKIA, s.r.o. | 20XKMFSLKI | Supplier | OKTE |
| KMF SLOVAKIA, s.r.o. | 20XKMFSLKI | Producer | OKTE |
| KORD SIPOX a.s. | 20XKORDSIP | Supplier | OKTE |
| KORD SIPOX a.s. | 20XKORDSIP | Producer | OKTE |
| KOVOTVAR, výrobné družstvo | 20XKOVTVRM | Producer | OKTE |
| KRON ENERGY, s. r. o. | 20XKROENE5 | Supplier | OKTE |
| KRON ENERGY, s. r. o. | 20XKROENE5 | Auction participant | OKTE |
| KRONOSPAN, s.r.o. | 20XKRNSPN2 | Producer | OKTE |
| LAMA energy a. s. - organizačná zložka | 20XLAMAEAH | Supplier | OKTE |
| Leitech s. r. o. | 20XLEITEC5 | Producer | OKTE |
| Lindner Immo Slovakia s.r.o. | 20XLINIMSG | Supplier | OKTE |
| Lindner Immo Slovakia s.r.o. | 20XLINIMSG | Auction participant | OKTE |
| Liptovská vodárenská spoločnosť, a.s. | 20XLIPVODE | Producer | OKTE |
| LMT, a. s. | 20XLMT0ASY | Producer | OKTE |
| LYRA GROUP s.r.o. | 20XLYRAGRO | Producer | OKTE |
| MAGNA ENERGIA a.s. | 20XMAGNAES | Supplier | OKTE |
| MAGNA ENERGIA a.s. | 20XMAGNAES | Auction participant | OKTE |
| Marian Škopek - PROFIMAL | 20XMSPROFV | Producer | OKTE |
| Martinus, s.r.o. | 20XMRTNSSV | Producer | OKTE |
| MedAgro, s. r. o. | 20XMEDAGRR | Producer | OKTE |
| Medline Assembly Slovakia s.r.o. | 20XMEDLINL | Producer | OKTE |
| MET Slovakia, a.s. | 20XMETSLOA | Supplier | OKTE |
| MET Slovakia, a.s. | 20XMETSLOA | Auction participant | OKTE |
| METRO Cash & Carry SR s.r.o. | 20XMETROCT | Producer | OKTE |
| Metsa Tissue Slovakia s.r.o. | 20XMETSSAH | Supplier | OKTE |
| MINERÁLNE VODY a.s. | 20XMINVODH | Producer | OKTE |
| MINITÜB SLOVAKIA spol. s r.o. | 20XMINTUBB | Producer | OKTE |
| Mondi SCP, a.s. | 20XMONSCP5 | Supplier | OKTE |
| Mondi SCP, a.s. | 20XMONSCP5 | Producer | OKTE |
| Mondi SCP, a.s. | 20XMONSCP5 | Auction participant | OKTE |
| Muehlbauer Technologies s.r.o. | 20XMUEHLBN | Producer | OKTE |
| MVE OPÁTSKE, spol. s r.o | 20XMVEOPAF | Producer | OKTE |
| MVE OPÁTSKE, spol. s r.o | 20XMVEOPAF | Auction participant | OKTE |
| MVE Želiezovce s. r. o. | 20XMVEZELI | Producer | OKTE |
| MVM CEEnergy Slovakia s.r.o. | 20XMFGKSKG | Supplier | OKTE |
| MVM CEEnergy Slovakia s.r.o. | 20XMFGKSKG | Auction participant | OKTE |
| NAFTA a.s. | 20XNAFTASA | Producer | OKTE |
| Naftogaz Slovakia s.r.o. | 20XNFTGAZK | Supplier | OKTE |
| Obchodné centrum ZORA, spol. s r.o. | 20XOCZORA4 | Supplier | OKTE |
| OFZ, a.s. | 20XOFZSVKA | Supplier | OKTE |
| OFZ, a.s. | 20XOFZSVKA | Auction participant | OKTE |
| OKTE, a.s. | 20XOKTEAS5 | Market operator | OKTE |
| Oxygene, s. r. o. | 20XOXYGEN[ | Producer | OKTE |
| PASPOL SK, spol. s r.o. | 20XPASPOLR | Supplier | OKTE |
| Peikko Slovakia s.r.o. | 20XPEIKKO7 | Producer | OKTE |
| Poľnohospodárske družstvo Trnava | 20XPODRTTF | Producer | OKTE |
| Pow-en a. s. | 20XPOWENAS | Supplier | OKTE |
| Pow-en a. s. | 20XPOWENAS | Auction participant | OKTE |
| Power Solutions, s.r.o. | 20XPOWSOLJ | Supplier | OKTE |
| Power Solutions, s.r.o. | 20XPOWSOLJ | Auction participant | OKTE |
| PP LAND, s.r.o. | 20XPPLANDF | Producer | OKTE |
| PPA POWER DS, s.r.o. | 20XPPAPDSA | Supplier | OKTE |
| PPA POWER DS, s.r.o. | 20XPPAPDSA | Producer | OKTE |
| Priemyselný park Poprad, s.r.o. | 20XPPPSROX | Supplier | OKTE |
| PRP, s.r.o. | 20XPRPSROL | Producer | OKTE |
| Red Forest, s. r. o. | 20XREDFORK | Supplier | OKTE |
| Red Forest, s. r. o. | 20XREDFORK | Auction participant | OKTE |
| RESPECT ENERGY SPÓLKA AKCYJNA | 20XRESENEE | Supplier | OKTE |
| RESPECT ENERGY SPÓLKA AKCYJNA | 20XRESENEE | Auction participant | OKTE |
| Rettenmeier Tatra Timber, s.r.o. | 20XRETATIZ | Producer | OKTE |
| RIGHT POWER, a.s. | 20XRIGPOW3 | Supplier | OKTE |
| RIGHT POWER, a.s. | 20XRIGPOW3 | Auction participant | OKTE |
| RODACH, s.r.o. | 20XRODACH[ | Producer | OKTE |
| RR Slovakia a.s. | 20XRRSVK1B | Producer | OKTE |
| Saneca Pharmaceuticals a. s. | 20XSANECAP | Producer | OKTE |
| Schaeffler Kysuce, spol. s r.o. | 20XSCHFRKA | Producer | OKTE |
| SCHINDLER ESKALÁTORY, s.r.o. | 20XSCHESKB | Producer | OKTE |
| SL - TRADE, s.r.o. | 20XSLTRADL | Producer | OKTE |
| Slovenská Grafia a.s. | 20XSKGRAFG | Producer | OKTE |
| Slovenské elektrárne - energetické služby, s.r.o. | 20XSELENSE | Supplier | OKTE |
| Slovenské elektrárne - energetické služby, s.r.o. | 20XSELENSE | Auction participant | OKTE |
| Slovenské elektrárne, a.s. | 20XSLOELER | Producer | OKTE |
| Slovenské elektrárne, a.s. | 20XSLOELER | Supplier | OKTE |
| Slovenské elektrárne, a.s. | 20XSLOELER | Auction participant | OKTE |
| Slovenský plynárenský priemysel, a.s. | 20XSPPAASJ | Supplier | OKTE |
| Slovenský plynárenský priemysel, a.s. | 20XSPPAASJ | Auction participant | OKTE |
| SlovTan Contract Tannery spol. s r.o. | 20XSLVTANJ | Producer | OKTE |
| SOVA Nest, s. r. o. | 20XEMMREAY | Producer | OKTE |
| Spanner SK, k.s. | 20XSPANSK4 | Producer | OKTE |
| Spilatex, s. r. o. | 20XSPILAT8 | Producer | OKTE |
| Spilatex, s. r. o. | 20XSPILAT8 | Auction participant | OKTE |
| SSE - MVE, s.r.o. | 20XSSEMVE9 | Producer | OKTE |
| STADREKO, s.r.o. | 20XSTADREZ | Producer | OKTE |
| Stredoslovenská energetika, a.s. | 20XSSENAS4 | Trader | OKTE |
| Stredoslovenská energetika, a.s. | 20XSSENAS4 | Auction participant | OKTE |
| Stredoslovenská energetika, a.s. | 20XSSENAS4 | Supplier | OKTE |
| t&at solutions s. r. o. | 20XTATSOLI | OKTE | |
| TBB, a. s. | 20XTBB0ASQ | Producer | OKTE |
| TBB, a. s. | 20XTBB0ASQ | Auction participant | OKTE |
| Thyssenkrupp Materials Slovakia spol. s r.o. | 20XTHYMAT1 | Producer | OKTE |
| Torreol, s. r. o. | 20XTOREOL[ | Supplier | OKTE |
| Torreol, s. r. o. | 20XTOREOL[ | Auction participant | OKTE |
| Ulstrup Plast s.r.o. | 20XULSTRP1 | Producer | OKTE |
| VeCom SK, a.s. | 20XVECOMS1 | Supplier | OKTE |
| VeCom SK, a.s. | 20XVECOMS1 | Auction participant | OKTE |
| V-Elektra Slovakia, a.s. | 20XVELESKU | Supplier | OKTE |
| V-Elektra Slovakia, a.s. | 20XVELESKU | Auction participant | OKTE |
| Veolia Utilities Žiar nad Hronom, a.s. | 20XVEUTZHI | Supplier | OKTE |
| Veolia Utilities Žiar nad Hronom, a.s. | 20XVEUTZHI | Auction participant | OKTE |
| Veolia Utilities Žiar nad Hronom, a.s. | 20XVEUTZHI | Producer | OKTE |
| VODOHOSPODÁRSKA VÝSTAVBA, ŠTÁTNY PODNIK | 20XVVBSKKI | Supplier | OKTE |
| VODOHOSPODÁRSKA VÝSTAVBA, ŠTÁTNY PODNIK | 20XVVBSKKI | Producer | OKTE |
| VODOHOSPODÁRSKA VÝSTAVBA, ŠTÁTNY PODNIK | 20XVVBSKKI | Auction participant | OKTE |
| Volvo Group Slovakia, s.r.o. | 20XVOLVGRW | Producer | OKTE |
| VUJE, a. s. | 20XVUJEASI | Producer | OKTE |
| Východoslovenská energetika, a.s. | 20XVSENASJ | Supplier | OKTE |
| Východoslovenská energetika, a.s. | 20XVSENASJ | Auction participant | OKTE |
| Wolf street one, s.r.o. | 20XWOLFSON | Producer | OKTE |
| Základná škola Juraja Fándlyho v Seredi | 20XZSFANDT | Producer | OKTE |
| Združenie rodičov Spoločnej nemecko-slovenskej školy v Bratislave | 20XZRSKOLJ | Producer | OKTE |
| ZSE Energia, a.s. | 20XZSEENEG | Supplier | OKTE |
| ZSE Energia, a.s. | 20XZSEENEG | Producer | OKTE |
| ZSE Energia, a.s. | 20XZSEENEG | Auction participant | OKTE |
| ZSE MVE, s. r. o. | 20XZSEMVEW | Producer | OKTE |
| Železiarne Podbrezová a.s. skrátene ŽP a.s. | 20XZELPODK | Producer | OKTE |
| Železiarne Podbrezová a.s. skrátene ŽP a.s. | 20XZELPODK | Auction participant | OKTE |