| Symbol | Name | Country | Exchange |
|---|---|---|---|
| BMI | Badger Meter, Inc. | US | NYSE |
| HOKCF | The Hong Kong and China Gas Company Limited | US | OTC |
| SMS | Smart Metering Systems Plc | UK | LSE |
| 0003 | Hong Kong and China Gas Co Ltd | HK | HK |
| 0384 | China Gas Holdings Ltd | HK | HK |
| 057540 | Omnisystem Co.Ltd | KR | KQ |
| PMSB | Permskaya Energosbytovaya OAO | RU | MCX |
| RTGZ | Gazprom Gazoraspredeleniye | RU | MCX |
| 002849 | Zhejiang Viewshine Intelligent Meter Co Ltd | CN | SHE |
| 300514 | Shenzhen Friendcom Technology Development Co Ltd | CN | SHE |
| 8917 | Hsin Tai Gas Co Ltd | TW | TWO |