The following ANAB-accredited certification bodies have completed the ISO 50001:2018 transition. Additional information can be found in Heads Up 420:
| ABS Quality Evaluations, Inc. | 2019/08/08 |
| Advanced Waste Management Systems | 2019/05/31 |
| BSI Assurance UK Limited | 2019/05/31 |
| Certification Association "Russian Register" | 2019/06/06 |
| CWB Registration, A Division of CWB Industry Solutions, Ltd. | 2019/11/06 |
| DEKRA Certification, Inc. | 2019/08/01 |
| DQS Inc. | 2019/07/01 |
| Orion Registrar, Inc. | 2019/07/30 |
| QMI-SAI Canada Limited (SAI Global) | 2019/07/01 |
| SGS Certification and Business Enhancement, a Division of SGS North America Inc. | 2019/07/01 |
| The Standards Institution of Israel, Quality and Certification Division | 2019/08/19 |
