A total of 24 experts – most of them high-ranking representatives of national nuclear supervisory authorities – are inspecting ENSI in the period from 21 November to 2 December 2011:
- Jean Christophe Niel, France (ASN),
Team Leader with overall responsibility for the IRRS mission in Switzerland - Eric Leeds, USA (NRC), Deputy Team Leader
- Marta Ziakova, Slovakia (UJD), IRRS Reviewer
- Gustaf Loewenhielm, Sweden (SSM), IRRS Reviewer
- Lamberto Matteocci, Italy (ISPRA), IRRS Reviewer
- Petteri Tiipana, Finland (STUK), IRRS Reviewer
- Miroslav Jakeš, Czech Republic (SÚJB), IRRS Reviewer
- An Wertelaers, Belgium (FANC), IRRS Reviewer
- Gennadiy Samokhin, Russia (SECNRS), IRRS Reviewer
- Thomas Wildermann, Germany (UMBW), IRRS Reviewer
- Sukho Lee, South Korea (KINS), IRRS Reviewer
- Aurelie Wawresky, France (ASN), IRRS Reviewer
- Eliana Amaral, Brazil (CNEN), IRRS Reviewer
- Steve Whittingham, UK (DFT), IRRS Reviewer
- Bruce A. Watson, USA (NRC), IRRS Reviewer
- Vladimir Jurina, Slovakia (UVZSR), IRRS Reviewer
- Malgorzata Sneve, Norway (NRPA), IRRS Reviewer
- Raul Dos Santos, Brazil (CNEN), IRRS Reviewer
- Peter Uhrik, Slovakia (UJD), Observer
- Adriana Nicic, IAEA Team Coordinator
- James Torrens Stewart, Deputy IAEA Team Coordinator
- Ivan Lux, IAEA Review Area Facilitator
- Peter Zombori, IAEA Review Area Facilitator
- Martyn O. Ubani, IAEA Administrative Assistant