This text was originally created in German and machine translated.
- Acer
- Agfa
- Aiptek
- Airequipt
- Anscomatic
- Argus
- ASK Proxima
- Audeze
- Audioengine
- Audiolab
- AudioQuest
- AVerMedia
- Barco
- Bauer
- Bausch + Lomb
- Bell + Howell
- BenQ
- Bolex
- Bowers & Wilkins
- Boxlight
- Braun
- Buhl
- Canon
- Casio
- Chief
- Christie
- CIMA
- Compaq
- CTX
- Da-Lite
- Definitive Technology
- Dell
- Denon
- DeVry
- Digital Projection
- Discovery
- Draper
- Dream Vision
- Dukane
- Dynaudio
- Eiki
- Eiko
- EIZO
- Elite Screens
- Elmo
- Epson
- Ernemann
- Eumig
- Flexson
- Focal
- Fujitsu
- Furnitech
- GAF
- Gateway
- Geha
- Gnome
- Halina
- Hanimex
- Hitachi
- HP
- IBM
- iiyama
- Imation
- Infinity
- InFocus
- Integra
- Jamo
- JVC
- Kanto
- Keystone
- Kicker
- Kindermann
- KLH
- Kodak
- Lasko
- Lenovo
- LG
- Liesegang
- Lightware
- Lucid Audio
- Lumens
- Luxeon
- Marantz
- Maverick
- MEE audio
- Microtek
- MicroVision
- Minolta
- Mitsubishi
- Mustek
- NAD Electronics
- Navitar
- NEC
- Nextar
- Nikon
- Nizo
- NOBO
- Novoflex
- Onkyo
- Optoma
- Panamax
- Panasonic
- Philips
- Pico
- Pioneer
- Planar
- Platinum
- PLUS
- Plustek
- Polaroid
- Polk Audio
- Polycom
- Prinz
- Pro-Ject
- Projecta
- ProjectDesign
- Promethean
- PSB
- Razer
- Reflector
- Rega
- Relisys
- Revere
- Rollei
- Runco
- Sagem
- Sahara
- Salamander
- Samsung
- Sanus
- Sanyo
- Sawyer
- Sears
- Sennheiser
- Sharp
- Shure
- SIM2
- Simplex
- Singer
- Sonos
- Sony
- SoundXtra
- Specto
- SVS
- Taxan
- Tivoli Audio
- Toshiba
- U-Turn Audio
- V7
- Victor
- ViewSonic
- Vifa
- Vision
- Vivitar
- Vivitek
- Wards
- Xerox
- Yamaha
- Zeiss Ikon