- assembly and maintenace of traction lines for the Slovak railways (ŽSR)

- assembly and maintenace for city trolleybus and tram routes

- assembly, repairs and maintenance of electrical equipment including lightning conductors in a supplier´s way, without the limitation of voltage,

- inspections of equipment and lightning conductors in OBJ. TR. A,

- electrical installations,

- assembly of cable television,

- engineering activities in building,

- performing transport constructions,

- performing engineering constructions,

- performing industrial constructions,

- performing housing and civil constructions,

- designing electrical equipment,

- assembly, maintenance and repairs of telecommunication equipment,

- assembly, repairs, maintenance, professional inspections and tests of electrical equipment, buildings with the danger of explosion of the equipment under 1000 V including lightning conductors,