CHANEL
c's back to back
The most obvious successful company that springs to mind with a letter C as a logo is Chanel perfume with its intertwined letter C back to back. To a lesser extent, Toyota used to have a C logo to advertise the Corolla car in the 1970's.
About 1979, give or take a year.
The logo with a blue triangle and yellow c and mermaid is Cressi.
If your talking about the logo's quiz its canon
Carolina Herrera has this logo.
It means the logo has a copyright.
500 $
Thumb on the back hole and the first three holes on the front.
canon?
The logo for the US Navy is a bald eagle with spread wings, stood in front of the US flag. The logo for the US Navy Seals, however is a bald eagle on an ancor, in front of a ship.