Public Sector

• Financial Administration of the Slovak Republic
• Ministry of Defence of the Slovak Republic
• Ministry of Foreign Affairs of the Slovak Republic
• Ministry of Health of the Slovak Republic
• Ministry of Environment of the Slovak Republic
• Ministry of Interior of the Slovak Republic
• National Health Information Centre
• National Bank of Slovakia
• Slovak National Security Authority
• Slovak Hydrometeorological Institute
• National Nature Conservancy Institute
• The Constitutional Court of the Slovak Republic

Universities

• Military Academy of General Milan Rastislav Štefánik
• Slovak Medical University in Bratislava
• Matej Bel University in Banská Bystrica 
• Pavol Jozefa Šafárik University in Košice 
• University of Veterinary and Pharmacy in Košice

Private Sector

Financial Sector

• Tatra banka, a.s.
• Všeobecná úverová banka, a.s.                                     
• Generali Poisťovňa, a.s.

Telecommunication

• Slovak Telekom, a.s.
• Slovanet, a.s.
• TTC Teleport, s. r. o.
• SWAN, a.s.

Transportation

• Letisko Košice - Airport Košice, a.s.
• Železnice Slovenskej republiky - Railways of the Slovak Republic

Industry

• Magneti Marelli Slovakia, s. r. o.
• Plzeňský Prazdroj Slovensko, a.s.
• Jaguar Land Rover Slovakia s.r.o.
• Nafta, a.s.

Utilities

• Slovenský plynárenský priemysel, a. s. - Slovak Gas Industry
• Transpetrol, a. s.
• Slovenská elektrizačná prenosová sústava, a.s.
• OKTE, a.s.                                                               
• SPP CNG s.r.o.