John A. Carey

Plantronics, Inc. engages in the design, manufacture, and distribution of headsets, voice, video, and content sharing solutions. It operates through the Products and Services segments. The Products segment includes the firm's headsets, voice, and video product lines. The Services segment includes maintenance support on hardware devices, as well as professional, managed, and cloud services and solutions. The company was founded by Courtney Graham and Keith Larkin in 1961 and is headquartered in Santa Cruz, CA.

DTS, Inc. engages in the provision of audio solutions to consumer electronic devices. Its solutions enables recording, delivery, and playback of audio. The company was founded by Terry Beard in 1990 and is headquartered in Calabasas, CA.

E-MU Systems, Inc. develops digital audio products. It designs, manufactures and markets professional digital sampling systems, digital sample playback devices and sample-based synthesizers. Its products include digital audio systems, software instruments, USB audio and MIDI interfaces, speakers, upgrades and accessories as well as E-MU sound central. The company was founded by Dave Rossum and Scott Wedge in 1971 and is headquartered in Scotts Valley, CA.

Otari, Inc. manufactures professional audio and video equipment. Its products are used in the music recording, broadcasting, film production, and live music industries. The firm's audio products are analogs, digital recorders, and mixing consoles. The company's industrial products include cassettes, CD's duplication systems, digital archiving systems, and sample rate converters. Otari was founded by Masayuki Hosoda in 1965 and is located in Tokyo, Japan