| 4finance | LV | Latvia |
| AB Facility, Plc. | CZ | Prague |
| AERO Vodochody AEROSPACE Plc. | CZ | Central Bohemian Region |
| AGC Automotive Czech, Plc. | CZ | Ustí Region |
| AGC Glass Europe ltd. | BE | Walloon Region |
| AGC Warszawa, Plc. | PL | Macovian Province |
| AL INVEST Břidličná, Plc. | CZ | Moravian-Silesian Region |
| Arcelor Mittal Ostrava, Plc. | CZ | Moravian-Silesian Region |
| Belje d.d. | HR | Croatia |
| Bilfinger MCE Slaný Ltd. | CZ | Central Bohemian Region |
| Bílovec Municipal Authority | CZ | Moravian-Silesian Region |
| BONATRANS GROUP, Plc. | CZ | Moravian-Silesian Region |
| BorsodChem | Other | Hungary |
| Bratislava - Staré Mesto District Authority | SK | Bratislava Region |
| Bratislava Municipal Authority | SK | Bratislava Region |
| Bratislava Regional Authority | SK | Bratislava Region |
| Bratislava – Petržalka District Authority | SK | Bratislava Region |
| Bratislava – Ružinov District Authority | SK | Bratislava Region |
| Brno St. Ann University Hospital | CZ | South Moravian Region |
| Bruntal Municipal Authority | CZ | Moravian-Silesian Region |
| Bureau of the Constitutional Court of the Slovak Republic | SK | Košice Region |
| Bystřice pod Hostýnem Municipal Authority | CZ | Zlín Region |
| ČD Cargo, Plc. | CZ | Prague |
| ČD – Telematika, Plc. | CZ | Prague |
| Central Military Hospital in Prague | CZ | Prague |
| Česká Pojištovna, Plc. (Czech Insurance) | CZ | Prague |
| Česká Spořitelna, Plc. (Czech Savings Bank) | CZ | Prague |
| Česká telekomunikační infrastruktura Plc. | CZ | Prague |
| České Radiokomunikace, Plc. (Czech Radiocommunications) | CZ | Prague |
| Českomoravská stavební spořitelna, Ltd. (Czech Moravian Building Society) | CZ | Prague |
| Cheb Municipal Authority | CZ | Karlovy Vary Region |
| CHEMES, Plc. Humenné | SK | Prešov Region |
| CMC Zawiercie, Plc. | PL | Silesian Province |
| Coal Services, Plc. | CZ | Ustí Region |
| Conbelts Sulore, Ltd. | PL | Silesian Province |
| Crocodille ČR Ltd. | CZ | Prague |
| CZC.cz Ltd. | CZ | Central Bohemian Region |
| Czech Agricultural University in Prague | CZ | Prague |
| Czech Radio | CZ | Prague |
| Czech Railways, Plc. | CZ | Prague |
| Dąbrowska Fabryka Maszyn Elektrycznych Damel SA | PL | Silesian Province |
| DataCentrum | SK | Bratislava Region |
| DENSO MANUFACTURING CZECH Ltd. | CZ | Liberec Region |
| District of Těrlicko | CZ | Moravian-Silesian Region |
| DT Points and Bridges, Plc. | CZ | Olomouc Region |
| E.ON Czech Republic, Ltd. | CZ | South Bohemian Region |
| ENGIE Services Ltd. | SK | Bratislava Region |
| ENGIE Services Plc. | CZ | Prague |
| ESET, Ltd. | SK | Bratislava Region |
| FCC Czech Republic, Ltd. | CZ | Prague |
| FoodCare Ltd. | CZ | Ustí Region |
| Frenštát pod Radhoštěm Municipal Authority | CZ | Moravian-Silesian Region |
| FTT Wolbrom, Plc. | PL | Lesser Poland Province |
| GCE, Ltd. | CZ | Vysočina Region |
| General University Hospital in Prague | CZ | Prague |
| Górnośląskie Przedsiębiorstwo Wodociągów S.A. | PL | Silesian Province |
| Górnośląskie Towarzystwo Lotnicze, Plc. | PL | Silesian Province |
| HAMZA Specialised Sanatorium for Children and Adults in Luže | CZ | Pardubice Region |
| HERN Ltd. | SK | Žilina Region |
| Heureka Shopping Ltd. | CZ | Central Bohemian Region |
| HOCHTIEF Polska Plc. | PL | Macovian Province |
| Holice Municipal Authority | CZ | Pardubice Region |
| Hoop Polska, Ltd. | PL | Lesser Poland Province |
| I.D.C. Holding, Plc. | SK | Bratislava Region |
| Infotea Ltd. | CZ | Ustí Region |
| innogy Czech Republic, Plc. | CZ | Prague |
| innogy Polska S.A. | PL | Macovian Province |
| Institute For Clinical and Experimental Medicine | CZ | Prague |
| Internet Mall, Plc. | CZ | Central Bohemian Region |
| Ivančice Hospital | CZ | South Moravian Region |
| JGL, Plc. | HR | Croatia |
| Johns Manville Slovakia, Plc. | SK | Trnava Region |
| Karviná – Ráj Hospital | CZ | Moravian-Silesian Region |
| KERAMOST, Plc. | CZ | Ustí Region |
| Knauf Insulation, Ltd. | SK | Banská Bystrica Region |
| Kofola Plc. | CZ | Moravian-Silesian Region |
| Kolonial.cz Ltd. | CZ | Central Bohemian Region |
| KORADO, Plc. | CZ | Pardubice Region |
| Košice Municipal Authority | SK | Košice Region |
| Košice – Krásna District Authority | SK | Košice Region |
| Královské Vinohrady University Hospital | CZ | Prague |
| Kravaře Municipal Authority | CZ | Moravian-Silesian Region |
| Kyjov Hospital | CZ | South Moravian Region |
| Kyjov Municipal Authority | CZ | South Moravian Region |
| LANEX, Plc. | CZ | Moravian-Silesian Region |
| Levice Municipal Authority | SK | Nitra Region |
| Liberec Regional Authority | CZ | Liberec Region |
| LINDE POHONY, Ltd. | CZ | South Bohemian Region |
| M - SILNICE, Plc. | CZ | Pardubice Region |
| MECOM Humenné, Plc. | SK | Prešov Region |
| MIBRAG | DE | Germany |
| Michalovce Psychiatric Hospital | SK | Košice Region |
| Milsy, Plc. | SK | Trenčín Region |
| Ministry of Economics of the Slovak Republic | SK | Bratislava Region |
| Ministry of Interior of the Slovak Republic | SK | Bratislava Region |
| MND Gas Storage, Plc. | CZ | South Moravian Region |
| MODUS Ltd. | CZ | Prague |
| Mondi Štětí, Plc. | CZ | Ustí Region |
| MS UTILITIES & SERVICES, Plc. | CZ | Moravian-Silesian Region |
| Na Bulovce Hostpital | CZ | Prague |
| Na Homolce Hostpital | CZ | Prague |
| Nitra Municipal Authority | SK | Nitra Region |
| Nové Město na Moravě Hospital | CZ | Vysočina Region |
| O2 Czech Republic Plc. | CZ | Prague |
| Odlewnia Żeliwa plc. | PL | Silesian Province |
| Office Depot Ltd. | CZ | Moravian-Silesian Region |
| OKK Koksovny Plc. | CZ | Moravian-Silesian Region |
| Opatovice Power Stations, Plc. | CZ | Pardubice Region |
| Orlová Municipal Authority | CZ | Moravian-Silesian Region |
| Ostrava Water and Sewerage, Plc. | CZ | Moravian-Silesian Region |
| OSTROJ, Plc. | CZ | Moravian-Silesian Region |
| Pars nova, Plc. | CZ | Olomouc Region |
| Pelhřimov Municipal Authority | CZ | Vysočina Region |
| Penta Investments, Plc. | SK | Bratislava Region |
| Pezinok Philipp Pinel Psychiatric Hospital | SK | Bratislava Region |
| Pivovary Lobkowicz Group, Plc. | CZ | Prague |
| Plzeňská energetika, Plc. | CZ | Plzeň Region |
| Plzeňská teplárenská, Plc. | CZ | Plzeň Region |
| Plzeňský Prazdroj, Plc. (Pilsner Urquell) | CZ | Plzeň Region |
| Počátky Municipal Authority | CZ | Vysočina Region |
| Port Lotniczy Łodż im. Władysława Reymonta, Ltd. | PL | Łódź Province |
| Prague 2 Municipal District Bureau | CZ | Prague |
| Prague 9 Municipal District Bureau | CZ | Prague |
| Prague Motol University Hospital | CZ | Prague |
| Prague ZOO | CZ | Prague |
| Pražská teplárenská Plc. | CZ | Prague |
| Prešov J.A.Reiman Hospital and Polyclinic | SK | Prešov Region |
| Przedsiębiorstwo Wodociągów i Kanalizacji Okręgu Częstochowskiego S. A. w Częstochowie | PL | Silesian Province |
| Psychiatric hospital Bohnice | CZ | Prague |
| Psychiatric hospital Havlíčkův Brod | CZ | Vysočina Region |
| Raiffeisenbank, Plc. | CZ | Prague |
| RAK RCz, Plc. | CZ | Prague |
| Regional Water and Sewerage Ltd. based in Zawiercie | PL | Silesian Province |
| Rozbaleno.cz Ltd. | CZ | Central Bohemian Region |
| Šaľa Municipal Authority | SK | Nitra Region |
| Schwan Cosmetics CR, Ltd. | CZ | South Bohemian Region |
| Severní energetická Plc. | CZ | Ustí Region |
| Silgan Metal Packaging Szprotawa, Ltd. | PL | Lubusz Province |
| Silgan Metal Packaging Tczew, Ltd. | PL | Pomeranian Province |
| Śląskie Wesołe Miasteczko | PL | Silesian Province |
| Slovak Forestry Commission | SK | Banská Bystrica Region |
| Slovak Health Spa Piešťany, Plc. | SK | Trnava Region |
| Slovalco, Plc. | SK | Banská Bystrica Region |
| Snina Municipal Authority | SK | Prešov Region |
| South Moravian Region Road and Highway | CZ | South Moravian Region |
| ST. NICOLAUS – trade, Plc. | SK | Bratislava Region |
| Statutory City of Havirov | CZ | Moravian-Silesian Region |
| Statutory City of Most | CZ | Ustí Region |
| Statutory City of Olomouc | CZ | Olomouc Region |
| Šternberk Municipal Authority | CZ | Olomouc Region |
| SUEZ Využití zdrojů, Plc. | CZ | Prague |
| SYNTHOS Kralupy Plc. | CZ | Central Bohemian Region |
| Synthos, Plc. | PL | Silesian Province |
| Szczyrkowski Ośrodek Narciarski | PL | Silesian Province |
| Szpital św. Michała, SA | SK | Bratislava Region |
| T.Bata Regional Hospital | CZ | Zlín Region |
| Tábor Municipal Authority | CZ | South Bohemian Region |
| TATRA, Plc. | CZ | Moravian-Silesian Region |
| TEDOM, Plc. | CZ | Vysočina Region |
| TEKO, Plc. | SK | Košice Region |
| Teva Operations Poland, Ltd. | PL | Macovian Province |
| TGM Hodonin Hospital | CZ | South Moravian Region |
| Tišnov Municipal Authority | CZ | South Moravian Region |
| TON, Plc. | CZ | Zlín Region |
| Topvar Breweries, Plc. | SK | Banská Bystrica Region |
| Toyota Peugeot Citroën Automobile Czech, Ltd. | CZ | Central Bohemian Region |
| Transpetrol, Plc. | SK | Bratislava Region |
| Transport Authority Košice, Plc. | SK | Košice Region |
| Trenčín Air Repairer, Plc. | SK | Trenčín Region |
| Uloženka Ltd. | CZ | Central Bohemian Region |
| UNIPETROL RPA, Ltd. | CZ | Ustí Region |
| United Energy Plc. | CZ | Ustí Region |
| University Hospital Plzeň | CZ | Plzeň Region |
| Valašské Klobouky Municipal Authority | CZ | Moravian-Silesian Region |
| Valašské Meziříčí Municipal Authority | CZ | Moravian-Silesian Region |
| VESUVIUS Czech Republic, Plc.VESUVIUS RCz SA | CZ | Moravian-Silesian Region |
| VIADRUS, Plc. | CZ | Moravian-Silesian Region |
| VIVANTIS, Plc. | CZ | Central Bohemian Region |
| Vodohospodářské stavby Teplice, Ltd. (Water Structure) | CZ | Ustí Region |
| Vyškov Hospital | CZ | South Moravian Region |
| Wienerberger brick industry, Plc. | CZ | South Bohemian Region |
| Wikov Industry, Plc. | CZ | Prague |
| Wüstenrot, Plc. | CZ | Prague |
| Žamberk Municipal Authority | CZ | Pardubice Region |
| Západoslovenská energetika, Plc. (East Slovak Energy) | SK | Košice Region |
| Západoslovenská energetika, Plc. (West Slovak Energy) | SK | Bratislava Region |
| Žďár nad Sázavou Municipal Authority | CZ | Vysočina Region |
| Železničná spoločnosť Cargo Slovakia, Plc. (Railway Company) | SK | Bratislava Region |
| Železničná spoločnost Slovensko, Plc. (Railway Company) | SK | Bratislava Region |
| Želiezovce Municipal Authority | SK | Nitra Region |
| Znojmo Hospital | CZ | South Moravian Region |
| Znojmo Municipal Authority | CZ | South Moravian Region |
| Żory Municipal Authority | PL | Silesian Province |
| ŽOS TRADING, Ltd. | SK | Žilina Region |
| ŽOS Trnava, Plc. | SK | Trnava Region |