There are 4 organization entries on Hoth. These codex entries are not required for any achievements, and two are faction or class specific.
This cannot be obtained by any characters.
Faction: Empire
Class: Bounty Hunter - Imperial Agent - Sith Inquisitor - Sith Warrior
This codex is under construction.
The Hailstorm Brotherhood codex entry obtained from a conversation.
Codex type: Organizations
Codex location: Hoth: Glacial Fissure: Chilling Death Spire
Codex coordinates: 399, -9
Faction: Both
Class: Bounty Hunter - Imperial Agent - Jedi Consular - Jedi Knight - Sith Inquisitor - Sith Warrior - Smuggler - Trooper
Associated Achievement: None
Special Requirements: You must progress the mission 'Razing the Ice Fortress' as an Imperial character or 'Give them an Inch' as a Republic character to gain access to this codex entry
The White Maw codex entry debris.
Codex type: Organizations
Codex location: Hoth: The Starship Graveyard
Codex coordinates: 1864, 146
Faction: Both
Class: Bounty Hunter - Imperial Agent - Jedi Consular - Jedi Knight - Sith Inquisitor - Sith Warrior - Smuggler - Trooper
Associated Achievement: None