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

Brand Vector Logos start with 'I' letter

Irati - Pr
Irati - Pr
Inatel
ICANN
Izmir Koruyucu Aile Dernegi
i3 International Inc.
Imagen Vision
Infoshop
IXIL
Indumex Servicios Financieros
In The Midst