Strebor's Corsairs
A loose pirate organization named for a now long dead captain, based on the island of Threepwood. Exact numbers are hard to come by but they number in hundreds at least, alarmists claim there are easily over a thousand of them.
Though they could field quite a fleet, the individual ships are quite independent and the crews are as much competitors as they are brothers in arms. Tavern fights are a daily occurrence and crews have no problem turning one over on another if it means more loot for them. Lethal combat between them is quite rare though; they realize they need each other to survive.
The countries around the Sarodin Sea have regularly tried to eradicate them, so far without success.