WowAce

Tracks rare drops, including companions and mounts

Find five Ephemeral Crystals, get a pink hippogryph

Collectinator is an addon which will scan your pets and mounts and provide information on how to obtain them.

Add-on that shows which mounts can be farmed this week

mount and companion manager

Auto and random summon highly customizable for your pets and mounts, with Data Broker support.

Add-on that shows which battle pets can be farmed this week

Shows the health of the player's current bodyguard.

Shows the source of an item as a tooltip

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

Generate a macro with random mounts

Pet Battle Lite Frame

Dynamic mount macro generator

Interface-central mount management

Adds team information to PetBattleTeams Addon

The One-Key-Mount™ — Simple to use, configured with Rock

One-click smart mounting.

Don't underestimate your little critters!

Pet Theory

Allows you to customise which companions are chosen by the "/randompet" command.