Heineken
Iberdrola
netscape
SKODA Auto
Airwalk's logo is a white tent in a red circle.
Minolta
The company that has a red circle logo with a white R in it is Rossignol
Worldpress logo or volkswagen
my school logo
Not sure
target
Vodafone
Starbucks has what is a debatable green letter t within it's logo. The logo itself is green and rests on a white background. Though the lettering for "Starbucks" it is actually white, it is a cutout from the green logo, and thus, when examined, can be taken as green.
Fanta