Over time, we have more or less evaluated all the leading Full Disk Encryption (FDE) products for our customers and have a short list of the following:
Check Point Full Disk Encryption
Microsoft BitLocker Drive Encryption
Symantec PGP Whole Disk Encryption
McAfee Endpoint Encryption
WinMagic SecureDoc Disk Encryption
Sophos SafeGuard Enterprise
These products have pros and cons depending on your business requirements. We have the experience to deploy these products correctly with the appropriate key management systems and recovery options enabled.
We can advise you how to scale these products and how to achieve compliance (for your particular business) with them.
There are more products out there and we can help you find alternatives to this short list if your requirements are even more specialized.
Contact us for more in-depth details and information.