| IGips group SlovakiaFacility Management | Installation services (except software) | |
| ZZSDis Bratislava, SlovakiaEnergy, Utilities & Waste Treatment | Installation services (except software) Distribúcia Elektriny Prevádzka Distribučnej Sústavy Distribučné Územie | |
| SSSIAD Slovakia Bratislava, SlovakiaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Technické Plyny Špeciálne Plyny Plynové Zmesi | |
| FSFENEGA, S.R.O. Kračúnovce, SlovakiaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Recyklácia Kovových Odpadov Likvidácia Elektrických Zariadení Výkup Kovov | |
| ESEUROWATER Slovakia&Czech republic Bratislava - Jarovce, SlovakiaEnergy, Utilities & Waste Treatment | Installation services (except software) Úprava Vody Kotlová Voda Povrchová Úprava | |
| EEnergio Banská Bystrica, SlovakiaEnergy, Utilities & Waste Treatment | Installation services (except software) Chladenie Adiabatické Chladenie Priemyselné Chladenie | |
| QQi-quant Čakajovce, SlovakiaReal Estate | | |
| SESES ENERGY, a.s. Tlmače, SlovakiaEnergy, Utilities & Waste Treatment | Installation services (except software) Construction work Montážne Práce Kotly Elektrárne | |
| AVAquatec VFL s.r.o. Dubnica nad Váhom, SlovakiaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Construction work Čistiarne Odpadových Vôd Domové Čistiarne Odpadových Vôd Podzemné Plastové Nádrže | |
| ESELTRA, s.r.o. Košice, SlovakiaEnergy, Utilities & Waste Treatment | Installation services (except software) Construction work Pevných Trakčných Zariadeniach Silnoprúdovej Elektrotechniky Elektrifikácie | |