The following ANAB-accredited certification bodies have completed the ISO/IEC 20000-1:2018 transition. Additional information can be found in Heads Up 427:
| BSI Assurance UK Limited | 2019/05/28 |
| CEPREI Certification Body | 2019/11/13 |
| Certification Association "Russian Register" | 2019/09/05 |
| CESI Certification Co., Ltd. | 2019/11/13 |
| National Quality Assurance, USA | 2019/08/03 |
| Perry Johnson Registrars, Inc. | 2019/09/04 |
| SRI Quality System Registrar | 2019/08/12 |
