Wikipedia
Certance
Certance was a privately held company engaged in design and manufacture of computer tape drives.
Based in Costa Mesa, California, Certance designed and manufactured drives using a variety of tape formats, including Travan, DDS, and Linear Tape-Open computer tape drives. Certance was one of the three original technology partners, (Certance, IBM, and Hewlett Packard), that created the Linear Tape-Open technology.
In 2005 Certance was acquired by Quantum Corporation.