OneDirect
- Airport Business Park, 14 McLeans Island Road, Christchurch
Optik Eyecare Newmarket
- 2a Gillies Avenue, Newmarket, Auckland
Onehunga Primary School
- 122 Arthur Street, Onehunga, Auckland
Optimism
- Level 1, 1 Kingdon Street, Newmarket, Auckland
Onepoto School
- 17 Fraser Avenue, Northcote, Auckland
The Optimum Clothing Co. Ltd
- 14 Westech Place, Kelston, Auckland
On the Beach Backpackers Lodge (YHA Whitianga)
- 46 Buffalo Beach Road, Whitianga, Coromandel
Opzeeland Transport (Hornby) Ltd – Christchurch Branch
- 12 Mount View Place, Hornby, Christchurch
On The Point Lake Rotorua
- 214 Kawaha Point Road, Rotorua
Oranga School
- 21 Rangipawa Road, One Tree Hill, Auckland