Like most markets, there will always be the big boys in the home projectors market. The following are currently the big players in the home projectors industry not necessarily in order of market share.
Everest
Planar
Acer
Faroudja
PLUS
Aiptek
Fujitsu
projectiondesign
ASK Proxima
Hitachi
Radio Shack
Avio
HP
Runco
Barco
IBM
Sagem
BenQ
iiyama
Sahara
Boxlight
InFocus
Samsung
Canon
JVC
Sanyo
Casio
Knoll Systems
Sharp
Christie
Lenovo
SIM2
Cinetron
LG
Sony
Dell
Liesgange
Studio Experience
Delta
Marantz
Toshiba
Digital Projection
Microtek
Vidikron
Dream Vision
Mitsubishi
Viewsonic
Dukane
NEC
Vivitek
DWIN
Optoma
Xerox
Eiki
Panasonic
Yamaha
eLux
Philips
Epson
Pixa
Of course these guys will have their own specialty niches in the home projectors business. For sure, new technologies will be reviewed here as they come and may not necessarily include all of these brands.