- HoverTech
- Howard
- Howard Elliott
- Howard McCray
- Howden
- Howdens
- Howdens Joinery
- Howdoifindmy
- howen
- Hoya
- Hoyer
- Hoyles
- Hoymiles
- Hoyt
- HOZAN
- Hozelock
- Hozelock Cyprio
- HP
- HP (Hewlett-Packard)
- HP Autozubehor
- HP Compaq
- HP Pavilion
- HP Velotechnik
- HP-Autozubehör
- HPA
- HPC
- HPE
- HPF
- HPI Racing
- hpi-racing
- HPM
- HPP Enterprises
- HPRT
- HPV
- HQ
- HQ Power
- HQ-Power
- HQST
- HQTELECOM
- HQUA
- HR
- HRS