- Group Health Cooperative
- Group USA
- Grove
- Grove Apartments
- Grove Supply
- Growing Place
- Growing Tree
- Grubb & Ellis
- Grubb & Ellis Commercial Real Estate Services
- Grubb & Ellis Management Services
- Grumpy's
- GSM Wireless
- GST Corporation
- GTE Federal Credit Union
- GTS Interior Supply
- Guadalajara
- Guadalajara Bakery
- Guadalajara Mexican Restaurant
- Guaranty Bank
- Guaranty Bank & Trust
- Guaranty Land Title Insurance
- Guaranty Mortgage
- Guardian
- Guardian Ad Litem
- Guardian Ad Litem Program
- Guardian Auto Glass
- Guardian Interlock Systems
- Guardian Life
- Guardian Life Insurance
- Guardian Life Insurance Company
- Guardian Protection Services
- Guardian Security Systems
- Guardsman Furniturepro
- Gucci
- Guess
- Guess Jeans
- Guest House Motel
- Guest Informant
- Guesthouse International