Routes prefix is en
First Essex employs branding on a few of its routes. The brand applied to a vehicle will be shown by a letter next to the fleet number. Generic (non branded) buses just display without a brand letter. Current brands are :-
| a = | Essex Airlink | |
| b = | Black | |
| c = | A Greener Essex | |
| e = | Essex | |
| g = | Ensignbus | |
| h = | Essex 100 | |
| s = | Shuttle | |
| u = | Livery from previous divison | |
| T = | Training | |