- Ansaldo Nucleare
- AREN
- AUTOMATICA S.A
- BIS NIMB
- CANDU ENERGY
- ELCOMEX IEA
- ENERGONUCLEAR
- ENERGOTECH
- EXE Green Holding
- General Electric
- GENERAL TURBO
- ICSI – Rm. Valcea
- IFIN-HH
- IMSAT
- KHNP
- Kinectrics Nuclear Romania
- MARSH SRL
- MATE FIN SRL
- ROSEAL SA
- SC TIAB SA
- SN “NUCLEARELECTRICA” SA
- TEN Bucureşti
- UNIFY CO LTD SRL
- UTI Group
- WALTER TOSTO FECNE
- ADS Solutions
- ALTIMATE SA
- Canadian Nuclear Partners
- CCTI – Centrul de Cercetari in Termodinamica si Informatica
- CERTSIGN SA
- COMPCONTROL
- Concelex
- Constructii Erbasu SA
- Electroproiect SA
- Framatome
- Industrial Montaj SRL
- RATEN
- Rom Weld Concept SRL
- ROMELECTRO
- SC Bureau VERITAS Romania
- SC Reinvent Energy SRL
- Tecnatom
- Trident Servicii si Mentenanta SA
- UTI Facility Management SA