- HACH LANGE
- Hacker
- Hacker Motor
- Hadco
- HADEF
- Haden
- Hadewe
- Hadex
- Hadley
- HAEGER
- Haemmer
- HAEMMERLIN
- Haes
- HAFA
- Hafco
- Hafco Metalmaster
- Hafele
- Hafele America
- Hafler
- HAFURY
- HÅG
- Hagebau
- Hagen
- Hagenuk
- Hager
- HAGER WERKEN
- Hagerco
- Hagerman
- Hagie
- Haglof
- Hagor
- HAGS
- Hague Quality Water
- Hague Quality Water Intl
- Hahn
- Hahnel
- Hahnemühle
- HAI
- HAIBIKE
- Haiboxing Toys Factory
- Haicom
- HAICOM Electronics Corp.