Verizon's logo has a red Z and the word foundation.
verizon
it's verizon
zero gravity
Amazon uses this shortened version of its logo. Normally their logo spells out the word "Amazon," and the arrow is underneath pointing from the a to the z, meaning that amazon sells everything from a to z. Sometimes they use the smaller logo of just the letter a and the arrow, though.
Jay Z
Opel
Blizzard
Blizzard
blizzard
Zurich
Blizzard