U. S. Steel Košice, s.r.o.
- Steel producer is one of the largest Slovak companies. Site lists products, responsible business programs, contacts and subsidiaries.
- http://www.usske.sk/

Interenergoresurs Ltd.
- Creates, develops and commercializes the newest ecological and conservation energy of technologies.
- http://web.viapvt.sk/pminter/

Applied Precision Ltd
- Research, development and production of measuring devices for the electricity distribution industry.
- http://www.appliedp.sk/

Sachs Slovakia, a.s. Trnava
- Manufactures clutches and torque converters in Trnava, Slovakia.
- http://www.sachs.sk/