| OSOptimum Services & Solutions Bucharest, RomaniaEnergy, Utilities & Waste Treatment | Installation services (except software) | |
| ADAqua D&P Technologies Cluj-Napoca, RomaniaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Stații De Epurare Epurarea Apelor Uzate Protecția Mediului | |
| ODOil Depol Constanța, RomaniaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Depolizare Rezervoare Bioremediere Sol Colectare Ulei Uzat | |
| UPUMEB Power Bucuresti, RomaniaEnergy, Utilities & Waste Treatment | Installation services (except software) Generatoare Electrice Service Generatoare Vanzari Generatoare | |
| ENElectric Network Bucuresti, RomaniaEnergy, Utilities & Waste Treatment | Installation services (except software) Distribuție Energie Electrică Rețele Electrice Conectare La Rețea | |
| G-GENEREKO - The official company LinkedIn site Voluntari, RomaniaEnergy, Utilities & Waste Treatment | Installation services (except software) Power Systems Hybrid Power Systems Alternators | |
| SSantura Câmpineanca, RomaniaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Fose Septice Stații De Epurare Mini Stații De Epurare | |
| ETEnergy Trade Activ S.A. Bucuresti, RomaniaEnergy, Utilities & Waste Treatment | Installation services (except software) Energie Electrica Furnizor De Energie | |
| 1C1st Criber RomaniaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Rezervoare Fibră Sticlă Rezervoare PP/PE Stații De Epurare | |
| RERIG ENERGY CONSULTANTS RomaniaEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Oil & Gas Power & Renewable Energy Engineering & Construction | |