The Companions are the equivalent to the Fighters Guild in earlier Elder Scrolls games.
The Companions are a group of mercenaries, soldiers and fighters who take on contracts for the people of Skyrim. Their headquarter is the mead hall Jorrvaskr, located in Whiterun.
The Companion questline consists six quest and gives you the ability to become a werewolf.
To join the Companions you have to talk to Kodlak Whitemane in Jarrvaskr.
Joining brings following Benefits:
- Master-level trainers in Smithing, Heavy Armor and Two-handed
- Expert-level trainers in One-handed, Block and Archery
- Access to Skyforge Steel weapons
- Never-ending supply of Radiant quests.