The Seekers' Guild is an organization of adventurers from all over Eos that vow to seek the truth of the world, explore its' depths, and fight corruption.
The Guild is based in a giant airship named The Voyager, though it also has a small building in Barthe which serves as the ship's home station.
Although the Guild stands up for good moral values, it is seen by most mainlanders as nothing more than a band of pirates with a fancier ship. This is likely because the Guild's main source of income, like many organizations from The Free City of Barthe, is piracy. So they are technically not wrong.