- I Am Sanctuary
- I Can't Believe It's Yogurt
- I Design
- I Have A Dream Foundation
- i wireless
- I.O. Metro
- I-55 Internet Services
- Ianazone's Pizza
- IBC Merita
- Iberiabank
- IBS
- IBT
- Ice Box
- Ice Cold Air
- Ice Cream Club
- Ice Cream Depot
- Ice Cream Parlor
- Ice Cream Shoppe
- Ice House
- Ice House America
- ICEE USA
- Ichiban Japanese Restaurant
- ICI Paints
- Icing
- ICM
- ICT Group
- Ida's
- IDC
- Idea
- Idea Factory
- Ideal Auto Sales
- Ideal Barber Shop
- Ideal Cleaners
- Ideal Construction
- Ideal Electric
- Ideal Market
- Ideal Ready Mix
- Idealease
- Ideas