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

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

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

Shows the health of the player's current bodyguard.

Dynamic mount macro generator

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

Adds team information to PetBattleTeams Addon

Generate a macro with random mounts

Shows the source of an item as a tooltip

Pet Battle Lite Frame

Don't underestimate your little critters!

Interface-central mount management

One-click smart mounting.

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

Pet Theory

A Mount and Companion manager