LLC "Sigma" provides a full range of external and internal power supply voltage of any complexity from 0.4 to 330 kV: design, approval, construction, execution and commissioning works, maintenance of electrical networks and plants. Among them: 0.4-110 kV power lines, transformer substations 0.4 / 06/10/35 kV. Installation, reconstruction and repair of electrical equipment in voltage from 0.4 to 330 kW all power plants of JSC "TGC-1".
The company owns all the necessary specialized equipment, production base, has all the necessary permits for works, a highly skilled team of experts, which allows on time and with high quality jobs to cope with almost any task. The structure of our company also includes the construction unit. For 20 years the staff has gained experience in the application of new technologies, modern electrical materials.

For any questions please contact us:
By phone - 8(812) 540-78-70; 8(812) 740-74-43;
By e-mail -;
Open hours: Mon-Fri - From 10.00 to 18.00 without break.


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