| Name | EDRPOU Code | Accreditation | |
|---|---|---|---|
| JV "PPC" | 20041662 | TSO | – |
| KP "PAVLOGRADTRANSENERGO" PMR | 43022284 | TSO | – |
| LLC "AXPO UKRAINE" | 41952114 | TSO | – |
| LLC "Blagogaz Zbut" | 41849377 | TSO | – |
| LLC "BUSINESS ALLIANCE" | 32266443 | TSO | – |
| LLC "Centrenergy" | 40447654 | TSO | UGS |
| LLC "CHERNIGIVGAS ZBUT" | 39576385 | TSO | – |
| LLC "CRAFT ENERGY" | 40008157 | TSO | UGS |
| LLC "CRESC" | 42102122 | TSO | – |
| LLC "D. Trading" | 42751799 | TSO | UGS |
| LLC "DE TRADING" | 42699760 | – | – |
| LLC "EKOTEHNOINVEST" | 34933742 | TSO | UGS |
| LLC "ENERGY TRADE GROUP" | 36716332 | TSO | UGS |
| LLC "ERNERING" | 39726263 | TSO | – |
| LLC "ERU Trading" | 40371329 | TSO | UGS |
| LLC "EURO-ENERGOGAS" | 36136028 | TSO | – |
| LLC "EX ENERGY" | 43549389 | TSO | – |
| LLC "Gas supplying company "Naftogas Trading" | 42399676 | TSO | UGS |
| LLC "GAS TSO OF UKRAINE" | 42795490 | TSO | – |
| LLC "GASENERGO-TRADE" | 42827548 | TSO | – |
| LLC "GASENERGOTRADE" | 41735582 | TSO | UGS |
| LLC "GAZ OPTIMUM" | 43520328 | TSO | UGS |
| LLC "GAZ-OIL TRADE" | 43832517 | TSO | UGS |
| LLC "GAZGOSP COMPANY" | 42577614 | – | UGS |
| LLC "GAZODOBUVNA" | 42573667 | TSO | – |
| LLC "GAZPROMENERGO" | 38703896 | TSO | UGS |
| LLC "GAZPROMPOSTACH HOUSING" | 44148530 | TSO | UGS |
| LLC "Inkorgas" | 37044944 | TSO | UGS |
| LLC "KHERSON REGION ENERGY SUPPLY COMPANY" | 42117825 | TSO | – |
| LLC "KIROVOGRADSKA REGIONAL ENERGY SUPPLY COMPANY" | 42132581 | TSO | – |
| LLC "KYIV REGION ESCO" | 42094646 | TSO | – |
| LLC "LETR" | 41200257 | TSO | UGS |
| LLC "NEW ENERGY PROJECTS" | 44207632 | TSO | UGS |
| LLC "ONK-GRUP" | 37872468 | TSO | UGS |
| LLC "PROMENERGO DNIPRO" | 42929751 | TSO | – |
| LLC "PROMGAZ CITY" | 41559270 | TSO | UGS |
| LLC "RIVNE REGIONAL ENERGY SUPPLY COMPANY" | 42101003 | TSO | – |
| LLC "RP-GROUP" | 41260164 | TSO | – |
| LLC "SKHIDGAZENERGO" | 42004898 | TSO | UGS |
| LLC "TEK" / LLC "TRADE ELECTRIC COMPANY" | 36530971 | TSO | UGS |
| LLC "TRANSGAZPROM" | 41334204 | TSO | – |
| LLC "U.COMMODITIES" | 42601505 | TSO | UGS |
| LLC "UKR GAS RESOURCE" | 41427817 | TSO | UGS |
| LLC "UKR-ALLIANCE ENERGY" | 42971138 | TSO | – |
| LLC "UKRAINE ENERGY" | 34528630 | TSO | – |
| LLC "Ukrainian Gas Trading" | 41764126 | TSO | – |
| LLC "UKRPOSTACH ENERGO" | 44322584 | TSO | UGS |
| LLC "United Energy" | 41963985 | TSO | – |
| LLC "YE Energy" | 38863790 | TSO | UGS |
| LLC "YUG-GAZ" | 30194498 | TSO | – |
| LLC "ZHYTOMYR REGIONAL ENERGY SUPPLYING COMPANY" | 42095943 | TSO | – |
| LLC "ZHYTOMІRGAS ZBUT" | 39577504 | TSO | – |
| LTD "SKAT-TRADE" | 39029755 | TSO | UGS |
| LTD "SOLDI INFINITY" | 43144891 | TSO | UGS |
| LTD "UKRENENERGOEXPORT" | 36994200 | TSO | UGS |
| PE "FIRM "ALPARI XXI" | 31441510 | TSO | – |