- Siemens – solutions in the area of energy production, transmission and distribution;
- ABB – solutions in the area of technology for electric power industry and automatization;
- Tolyattinsky tranformator, Ltd., – development and manufacture of power transformers and autotransformers;
- The "Electroschit" group of companies (Samara) – manufacture of electrical equipment 0.4 - 220 kv;
- "Alyans-Electro" Research and Production Company – manufacture of high-voltage equipment up to 220 kv and higher, for electrical currents up to 4000 amp;
- "Energomash - Uralelectrotyazhmash" CJSC – manufacture of power electrical equipment for generating, transmission, distribution and consumption of energy;
- "Pilot plant "Gidromontazh" OJSC – manufacture of multisided metal poles for high-voltage transmission lines of 35 to 500 kv;
- "Avtomatika" Production and Commercial Firm – manufacture of low-voltage and high-voltage equipment up to 35 kv.
All the equipment and technological solutions produced by these companies are intended for various operating conditions, are characterized by a high degree of complexity, are often implemented on the basis of in-house designing for special conditions of construction and are intended for general as well as specialized application.