Trek makes almost everything, from OCLV carbon fiber road and mountain bikes to gloves and helmets. Check out Trek's 2010 Madone, build yours here Project One (click on the image below and follow the links):

Giant provides affordable entry level and kids bikes, all the way from aluminum to carbon fiber frames.

Gary Fisher Mountain, Road, Cross, and Kids Bikes. One of the pioneers of the 29er.

Cannondale has Entry level to High end aluminum and carbon fiber road, mountain and hybrid bikes.

Cannondale Super Six: