UniDataRecovery can recover data from Unix OS, as well as from Other Operating Systems.

Here is a list of some of the file systems based on the platform:
Intel Platforms

Unix Operating systems including: 

SCO OpenServer and Xenix,

UnixWare from Novell and SCO,

Solaris,

Linux with ext2fs, xfs, reiserfs & jfs filesystems on standalone & RAID volumes,

BSD-based systems such as FreeBSD, OpenBSD and NetBSD, BSDI,

LynxOS,

QNX.

Non-Intel Platforms

Unix Systems including: 

Solaris on Sun/SPARC equipment, with ufs and Veritas VxFS filesystems

HPUX on Hewlett-Packard workstations with hfs and Veritas VxFS filesytems on standalone and LVMvolumes,

IRIX on SGI workstations with efs and xfs filesystems,

VMS & OpenVMS running on Compaq & DEC equipment using ODS filesystems.