- GENEVA
- genten
- Genuine
- GEONWORKS
- George's
- GeoVision
- GERCEO
- Geshic
- GGD SELECT
- GGMM
- GH シリーズ（BENRO）
- GHOSTEK
- GIANT
- Gibson
- GIGA-BYTE
- GIGA-BYTE AEROシリーズ
- GIGA-BYTE AEROシリーズ AERO 15 OLED
- GIGABYTE Gaming
- GILD design
- Gillette
- GIMMICK
- Ginova
- Gizmobies
- GLAD HAND
- Glam Palm
- glamb
- Glazata
- GLIDiC
- GLIDiC Sound Air
- GLMシリーズ
- GLOBAL JAPAN
- GLOBAL WORK
- GLORIOUS
- GLORY
- Gloss Color Frame Filter
- GLUTTONOUS
- GMJ
- GMKtec
- go slow caravan
- GOAL