G
- NXS Forefront Inc.
- Gaia Converter
- Gain ICs
- Galco Industrial Electronics
- Gamma Electronics
- GAN Systems
- GaNPower
- GAPTEC Electronic
- GardTec
- Gas Sensing Solutions Ltd
- Gateworks Corporation
- GC Electronics
- GE Critical Power (ABB Embedded Power)
- GE Measurement & Control
- Gearbox Labs
- GEC / Amphenol
- Geckodrive
- GEDORE Tools, Inc.
- GelSight
- Gemalto (Thales DIS)
- Genasun by Sunforge LLC
- General Cable (Prysmian Group)
- General Electric
- General Luminaire
- GeneSiC Semiconductor
- Genicom
- Genuino (Arduino)
- GES High Voltage
- Gettop Acoustics
- Geyer Electronic America, Inc.
- GHI Electronics, LLC
- GigaDevice
- GIGAIPC
- Glas-Col, LLC
- Glenair
- GLF Integrated Power
- Global Connector Technology, Limited (GCT)
- Global Specialties
- Global Telecom
- GlobalTech Display
- GlobTek, Inc.
- GMEMS Technologies
- GMN
- GMW Associates
- Goford Semiconductor
- Good-Ark Semiconductor
- General Semiconductor (Vishay)
- Gore
- GotRad
- GOWIN
- GP Batteries
- GP Systems GmbH
- GPS of Things, Inc.
- GradConn
- Grayhill, Inc.
- Great Scott Gadgets
- Green Ignite Inc.
- Greenconn Technology
- Greenlee Communications
- Greenliant
- Grepow Inc.
- GroupGets
- GS Software
- GSI Technology
- Guerrilla RF
- Gumstix
- GWconnect / Molex
- G&G Industrial Lighting