Intel : for their CPUs
Asus: for their motherboards and some other electros.
for GPUs: it used to be nVidia, but it's becoming ATi nowadays.
Eidos: for their TombRaider, and Batman.
Capcom: for their DMC4 and RE5.
EA: for their Crysis and Mirror's Edge.
the 20th century: for their movies.
Motorolla and Sony Ericsson for their mobile phones.
LG: for their air conditioning electronics and their washing machines.
Samsung: for their LCD screens.
and Oxford (Oxford University Press OPU
) and Longman, and even Cambridge: for their dictionaries and publications.
I have a lot, but can't remember all of them.