GAV
This is a Russian Automotive Industry company
At&t
IBM
amtrak
Konica minolta
Konica minolta
It is white and blue and gold. There is stripes on the top and the bottom. This is the old logo, now it is the word visa that is blue with a gold tip.
Amtrak
Zurich
Konica Minolta
It's foursquare, but I guess they changed the ball color to green now.
A logo with a blue background and white letters could refer to several brands, but a prominent example is the Facebook logo. It features a simple blue square with white lowercase letters spelling "f." Another example is the LinkedIn logo, which also uses a blue background and white lettering.
Worldpress logo or volkswagen