Some industry players I know:
Philips bought out Genlyte in 2007, they have a ton of brands.
DVI Lighting (residential consumer)
Bazz Lighting (residential consumer)
Heath Zenith (residential outdoor)
For more, just go to stores and look up the companies. I think there is good deal of turnover so just get your resume in the office and you will be on top of the pile when they start looking.