- Hallins
- Hallman
- Hallmark Cards
- Halloa Enterprise
- Halls
- Hally-Gally
- Halma
- Halo
- Halo Commercial
- HALO HOME
- HALO Innovations
- Halo Lighting
- Halo Lighting System
- Halo Monitoring
- Halo2Cloud
- Halsey Taylor
- Halstead
- halstrup-walcher
- Haltech
- Halyard
- Halytech
- HAM
- Ham-Let Valves & Fittings
- Hama
- Hamamatsu Photonics
- Hamax
- Hamee Corp.
- HAMEG
- Hameg Instruments
- Hamg Shing Corp
- Hamilton
- Hamilton Beach
- Hamilton Beach Brands Inc.
- Hamilton Beach Professional
- Hamilton Buhl
- Hamilton Electronics
- Hamilton Home Products
- Hamilton Sundstrand Company
- Hamilton Watch
- Hamilton/Buhl
- HamiltonBuhl
- Hamlet