H
- NXS Forefront Inc.
- H & H Innovative Concepts
- Hackboard
- HackerGadgets
- Hagiwara Solutions
- Hakko
- Hallsten Innovations
- HALO Electronics
- Ham Radio Workbench
- Hamlin / Littelfuse
- Hammond Manufacturing
- Hantronix
- Hapco
- Harimatec
- Harman/Kardon
- HARTING
- Hartland Controls / Littelfuse
- Harvatek Corporation
- Harwin
- Hasco Relays
- Hatch Lighting
- Hayata
- HDP Power
- Heatron
- Helium
- Helix Linear
- Helix Semiconductors
- HellermannTyton
- Hencke Technologies
- Henkel / Bergquist
- Henkel/Loctite
- HenLv Power
- Henrich Electronics Corporation
- Heraeus Nexensos USA
- HERMOS AG
- Heyco Products
- High Speed Backplane Products (Amphenol Communications Solutions)
High Speed IO (Amphenol Communications Solutions) - Highpower Security Products LLC
- High-Tech Conversions
- Hillcrest Labs (CEVA)
- Himax Technologies
- HiRel Systems / Vishay
Huntington / Vishay - Hirose Electric
- Hirschmann Mobility / TE Connectivity
Holsworthy Resistors / TE Connectivity - Hirschmann / Lumberg Automation
- Hirst Magnetic Instruments
- Hitachi Metals
- Hitec Commercial Solutions LLC
- HiTek
- Hittite (Analog Devices)
- HI-LO Systems
- HKC
- HMS Networks
- Hobbs / Honeywell
Honeywell Aerospace
Honeywell Sensing and Productivity Solutions
Hycal / Honeywell - HOBO
- Hoffman
- Hologram
- Holt Integrated Circuits, Inc.
- Holy Stone Enterprise
- HOMEVISION TECHNOLOGY INC.
- Hong Kong X’tals Limited (HKC)
- Hongfa
- Horus Scope
- Hosonic Electronic
- HP
- HPC Optics
- HPWINNER
- Huawei
- Hubbell Lighting Components (Thomas Research Products)
- Huber+Suhner
- Hunan Aihua Group (Aishi Capacitors)
- HVM Technology, Inc.
- HY Electronic (Cayman) Limited
- HYPERSPACE
- Hyperstone
- H&D Wireless
- H.G. Schaevitz, LLC / Alliance Sensors Group