Horizon Technology Limited
- 7 Douglas Alexander Parade, Albany, North Shore
Horsley Christie
- 14 Victoria Avenue, Wanganui
Horton Media Ltd
- 61 Sir William Avenue, East Tamaki, South Auckland
Horticulture Marketing Ltd
- 216 Queen Street, Richmond, Nelson
Horwath Hunter Brocklebank Ltd
- 56 York Place, Dunedin
Hospitality Management Consultants Ltd
- Level 4, 43 High Street, Auckland