| Don Stikvoort SIM3 Senior Trainer and Auditor, creator of SIM3, author of SIM3 v1 and v2 |  | Auditor since 11 April 2017 SIM3 Senior Trainer since 11 November 2019 |
| Klaus-Peter Kossakowski SIM3 Senior Trainer and Auditor, inspiration for SIM3 v1, author of SIM3 v2 |  | Auditor since 11 April 2017 SIM3 Senior Trainer since 11 November 2019 |
| Mirosław Maj SIM3 Senior Trainer and Auditor, author of SIM3 v2 |  | Auditor since 11 April 2017 SIM3 Senior Trainer since 11 November 2019 |
