Otautau School
- Elles Road, Otautau
Oteha Valley School
- Medallion Drive, Albany, North Shore
Otis Elevator Company Ltd
- 3 Fisher Crescent, Mt Wellington, Auckland
Otorohanga District Council
- 17 Maniapoto Street, Otorohanga, Waikato
Otumoetai Intermediate
- Charles Street, Otumoetai, Tauranga
Otunui School
- Otunui North Road, Otunui, Taumarunui