Onyx Group Ltd
- 17 The Concourse, Henderson, Auckland
Orange Productions – Exceptional Events Management & Design
- 6 Henderson Place Onehunga
Open Cloud Ltd
- Level 4, 54-56 Cambridge Terrace, Wellington
ORB Communications Ltd
- Level 1, 214 Karangahape Road, Auckland
OM Financial Ltd
- Level 2, 187 Broadway, Newmarket, Auckland
Flannery Lodge
- Ophir
Orcon Internet Limited
- 28 The Warehouse Way, Northcote, North Shore
Orion Health Ltd
- Orion House, 181 Grafton Road, Grafton, Auckland 1010
Orlando Private Florist
- Ground Floor, George Courts Building, 238 Karangahape Road, Auckland
O’Rourke Brothers
- 85 Main Road, Pleasant Point, Timaru