sap
Opel.
Airwalk's logo is a white tent in a red circle.
Opel
The company that has a red circle logo with a white R in it is Rossignol
If you are referring to the I-phone/adroid Logo game, you are most likely referring to the Opel logo.
Worldpress logo or volkswagen
Not sure
target
Vodafone
TUMBLR
It's a brand of sunglasses, snow goggles called Electric.