3Ware - SATA (Serial ATA) and SAS (Serial Attached SCSI) Hardware RAID controllers
LSI - SATA, SAS, SCSI RAID controllers
HP SmartArray - SATA, SAS, SCSI RAID Controllers
Dell Hardware Based RAID controllers for their servers..
All of the above companies manufacture Hardware based RAID controllers with good Linux Support.
Adaptec still has hardware based RAID controllers as well, but their productline is mixed between hardware based and FakeRAID, making it difficult to find what you are looking for.
You can get your current card to work using dmraid, or just using Linux software RAID.
Hardware based RAID controllers are NOT inexpensive but imho can have some definite benefits in the enterprise.