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- Garfinkel Publications
- Garmin International
- Garware-Wall Ropes
- Gates
- Gator Guards
- Gem Products (Gemlux)
- Gemini Packaging
- Genasun
- Generic
- Georgia Boot
- Gerber Gear
- Gill North America
- Gilmour
- Glacier Gloves
- Glendinning Marine Products
- GLM Products
- Globe Rubber Works
- Glomex
- GoGirl
- Go Power
- Go With The Flow Solutions
- Golden Dove Marine
- Golight
- Gorilla Glue Company
- Grainger
- Greenfield Industries
- Greenlite Cable Accessory Corp.
- Gresen Hydraulics (Parker Hannifin)
- Groco
- Grundens
- GSI Outdoors
- Guest Marine Products
- Gunarama
- Gunnebo Johnson Co.
- Guy Cotten
- Gear Aid
- Gunk
- Gibbs Fishing