| IDIzoelektro d.o.o. Limbuš, SloveniaEnergy, Utilities & Waste Treatment | Electrical machinery, apparatus, equipment and consumables; lighting Odvodniki Prenapetosti Podporni Izolatorji Natezni Izolatorji | |
| KIKolektor Igin, Power Engineering Systems Ljubljana - Črnuče, SloveniaEnergy, Utilities & Waste Treatment | Electrical machinery, apparatus, equipment and consumables; lighting Construction work Gradnja In Rekonstrukcija Elektroenergetskih Naprav Srednja In Visoka Napetost Inženiring | |
| RDRUDIS d.o.o. Trbovlje Trbovlje, SloveniaEnergy, Utilities & Waste Treatment | Industrial machinery Construction work Čiščenje Dimnih Plinov Učinkovita Raba Energije Hidroenergetika | |
| CACEPS a.s. SloveniaEnergy, Utilities & Waste Treatment | Industrial machinery Construction structures and materials; auxiliary products to construction (except electric apparatus) | |
| CDCHRONOS, d.o.o. Ljubljana, SloveniaEnergy, Utilities & Waste Treatment | Electrical machinery, apparatus, equipment and consumables; lighting Energetske Naprave Proizvodnja Energija | |
| RResalta Ljubljana, SloveniaEnergy, Utilities & Waste Treatment | Electrical machinery, apparatus, equipment and consumables; lighting Industrial machinery Energetska Učinkovitost Dekarbonizacija Upravljanje Energetskih Storitev | |
| ELEnergetika Ljubljana d.o.o. Ljubljana, SloveniaEnergy, Utilities & Waste Treatment | Industrial machinery Construction structures and materials; auxiliary products to construction (except electric apparatus) Distribucija Plina Soproizvodnja Toplotne Energije Soproizvodnja Električne Energije | |
| E3E 3, energetika, ekologija, ekonomija, d.o.o. Nova Gorica, SloveniaEnergy, Utilities & Waste Treatment | Electrical machinery, apparatus, equipment and consumables; lighting Industrial machinery Dobava Električne Energije Proizvodnja Električne Energije Obnovljivi Viri | |
| HDHidroenergija d.o.o. Ljubljana, SloveniaEnergy, Utilities & Waste Treatment | Industrial machinery Construction work Hidroelektrarne Vodne Turbine Inženiring | |
| SCSAT Control Cerklje na Gorenjskem, SloveniaEnergy, Utilities & Waste Treatment | Electrical machinery, apparatus, equipment and consumables; lighting Construction work | |