| PROBUGAS s.r.o. | 22023984 | Nový Bor | 10 September 2024 | Active |
| EP Commodities AG - odštěpný závod zahraniční právnické osoby | 21219869 | Praha | 2 March 2024 | Active |
| RESPECT ENERGY FUELS SPÓŁKA Z OGRANIZCONA ODPOWIEDZIALNOŚCIA Oddział w Czechach | 21299765 | Praha | 28 February 2024 | Active |
| Antilopa Energy s.r.o. | 19741707 | Praha | 20 September 2023 | Active |
| Trans Energo Group a.s. | 17931789 | Brno | 13 January 2023 | Active |
| MVM CEEnergy Zrt., odštěpný závod | 11681896 | Brno | 21 July 2021 | Ceased |
| UPTON ENERGY TRADING s.r.o. | 09857605 | Praha | 25 January 2021 | Active |
| BV POWER SOLUTION s.r.o. | 08164827 | Pardubice | 14 May 2019 | Active |
| Manta Energy a.s. | 07198205 | Praha | 8 June 2018 | Active |
| AZ Energies s.r.o. | 06742157 | Pardubice | 8 January 2018 | Active |
| GREAT NORTH CANADIAN HOLDINGS SE | 06162941 | Praha | 6 June 2017 | Active |
| MPTC s.r.o. v likvidaci | 05099951 | Brno | 20 May 2016 | Ceased |
| Brodská plynárenská s.r.o. | 04875001 | Praha | 4 March 2016 | Active |
| AZ Commodity Trade s.r.o. | 04778669 | Pardubice | 26 February 2016 | Active |
| VICCI energy s.r.o. v likvidaci | 04479777 | Praha | 13 October 2015 | Ceased |
| A-PLUS Energie obchodní, a.s. | 03695581 | České Budějovice | 8 January 2015 | Active |
| PT Koncept, a.s. | 03261816 | Praha | 5 August 2014 | Ceased |
| NRG komodity s.r.o. | 01729853 | Ústí nad Labem | 29 May 2013 | Active |
| FERTGAS Handels GmbH, organizační složka | 01480162 | Praha | 29 March 2013 | Active |
| Online energie s.r.o. | 29320968 | Brno | 8 February 2013 | Active |
| ENOI S.P.A., organizační složka | 24257419 | Praha | 23 August 2012 | Ceased |
| OBECNÍ PLYNÁRNA, s.r.o. | 28145127 | Český Krumlov | 14 February 2012 | Active |
| Karlovarská plynárenská s.r.o. | 29120951 | Jenišov | 26 September 2011 | Active |
| X Energie, s.r.o. v likvidaci | 24817872 | Praha | 2 March 2011 | Ceased |
| KOMTERM energy, s.r.o. | 24771970 | Praha | 1 December 2010 | Active |
| Mercuria Energy Trading SA, organizační složka | 29014174 | Praha | 13 January 2010 | Active |
| HALIMEDES, a.s. | 29015961 | Praha | 6 January 2010 | Active |
| Europe Easy Energy a.s. v likvidaci | 28603001 | Praha | 14 October 2009 | Ceased |
| EURO GAS HOLDING s.r.o. | 28708369 | Ústí nad Labem | 2 September 2009 | Ceased |
| CENTROPOL TRADING, s.r.o. | 27343031 | Ústí nad Labem | 4 January 2008 | Active |
| Slovácké Plynárny s.r.o. | 27742288 | Uherské Hradiště | 24 August 2007 | Active |
| ARMEX ENERGY a.s. | 27266141 | Děčín | 1 April 2005 | Active |
| CENTROPOL ENERGY, a.s. | 25458302 | Ústí nad Labem | 4 December 2002 | Active |
| Lumius, spol. s r.o. "v likvidaci" | 25911945 | Sviadnov | 26 June 2002 | Active |
| RWE Supply & Trading CZ, a.s. v likvidaci | 26460815 | Praha | 18 June 2001 | Ceased |
| PDI a.s. | 25758292 | Klíčany | 28 April 1999 | Active |
| eYello CZ, k.s. | 25054040 | Praha | 28 May 1996 | Active |
| Sytherm, společnost s ručením omezeným | 63144018 | Jablonec nad Nisou | 16 May 1995 | Active |
| innogy Energie, s.r.o. | 49903209 | Praha | 1 January 1994 | Active |
| Pražská plynárenská, a.s. | 60193492 | Praha | 31 December 1993 | Active |