As of August 4, 2023
| Country name | Segment | Certified organization/ corporation/ site | Certification body | Certification number | Current certification effective up to: |
Date of initial certification for each site |
| Japan | － | OMRON Corporation Kusatsu Plant | BVC | JP022152 | 2025/2/28 | 2021/3/16 |
| OMRON Corporation Ayabe Plant | BVC | 4571003 | 2024/2/24 | 2021/2/25 | ||
| OMRON Corporation Yasu Plant | BVC | JP023457 | 2026/4/7 | 2020/4/8 | ||
| DMB | OMRON RELAY & DEVICES Corporation (2 sites) | JACO | WC01J0006 | 2024/11/10 | 2001/6/12 | |
| OMRON SWITCH & DEVICES Corporation | BVC | JP020686 | 2024/3/1 | 2021/3/2 | ||
| OMRON TAIYO CO.,LTD. | BVC | JP023117 | 2025/12/22 | 2019/12/23 | ||
| SSB | OMRON SOCIAL SOLUTIONS CO.,LTD.Yasu Office | JQA | JQA-OH0325 | 2026/7/30 | 2020/7/31 | |
| OMRON ASO CO., LTD. | BVC | JP020663 | 2024/12/24 | 2021/2/25 | ||
| HCB | OMRON HEALTHCARE Co., Ltd MATSUSAKA PLACE OF BUSINESS |
BVC | 4565697 | 2024/2/17 | 2021/2/18 | |
| Malaysia | DMB | OMRON Malaysia Sdn.Bhd. | BVC | MY009383 | 2026/1/29 | 2020/1/30 |
| Vietnam | HCB | OMRON HEALTHCARE MANUFACTURING VIETNAM CO., LTD. | BVC | VN007708 | 2024/2/1 | 2021/2/2 |
| Indonesia | － | P.T. OMRON Manufacturing of Indonesia | BVC | ID004092 | 2025/2/18 | 2022/2/19 |
| China (Shanghai) |
IAB | OMRON (Shanghai)Co.,Ltd. | CQC | 00120S33456R4L/3100 | 2023/12/28 | 2009/1/16 |
| China (Shenzhen) |
DMB | OMRON Electronic Components (Shenzhen) Ltd. | BVC | CN043292 | 2026/2/17 | 2020/2/18 |
| China (Shanghai) |
DMB | Shanghai OMRON Control Components.Co.,Ltd. | SQC | 04220S20068R1M | 2023/11/4 | 2018/11/29 |
| China (Dalian) |
HCB | OMRON (Dalian)Co.,Ltd. | BVC | CN038964 | 2025/1/15 | 2019/1/16 |
