Over here you will find free vector brand logos in Illustrator, EPS, Corel Draw format..

Brand Vector Logos start with 'G' letter

Grupo Cuma Hoteles
Government of the Republic of Moldova Public Property Agency
Gatorade Cup
GOLF CL
Guo Pei
Greencoat
Global Infrastructure Hub
Gravure Laser
Global Payments
Gouden Gids Divisie
Grace Digital