| Kowloon Motor Bus | Long Win Bus | Citybus | New World First Bus | MTR Bus | CLP Power |
There are currently 49 Enviro500 MMC buses owned by MTR Bus, including:
- 46 11.3-metre versions (purchased in four batches: 6+28+8+4), with fleet numbering prefixes following the 5 of Dennis Dart.
- Three 12-metre versions, with fleet numbering prefixes following the 8 of Enviro500.