Other meter manufacturers
These meters were made by companies that were unable to compete with GE, Westinghouse, Sangamo, and Duncan.
| Early models | Diamond Meter Co. | Columbia Meter Co. | Stanley Instrument Co. | Other models |
| Gardiner lamp-hour | Type C | Type D | Stanley D | Federal Electric |
| Fuller lamp-hour | Type D | Type C1 | Stanley Model G | Holcomb & Hoke A |
| Edison chemical | Type E (early) | Type C3 | Stanley Model H (early) | SEMCO 1 |
| Thomson lamp-hour | Type E (late) | SA | Stanley Model H (late) | Stewart-Warner |
| Siemens & Halske | Type F (DC) | Roller-Smith S3 | ||
| Type F (DC/AC) | ||||
| Type H | ||||
| standard |