The following LTO manufacturers have developed drives that have been approved by TDCP on all three levels, unless otherwise indicated.
Quantum brands are: ATL Products, Certance (former tape business of Seagate Technology), Benchmark, Seagate, Archive, ADIC, M4 Data, Maynard, Irwin, and Cipher.
Tandberg Data brands are: Tandberg Data, Exabyte, and Ecrix.
Note: Exabyte library's ship either Tandberg Data, HP, or IBM LTO drives.