Organic Wine NZ 
Organic Wine Growers NZ (Part of NZWine), a fantastic resource for Organic Wine Growers.

https://www.organicwineconference.com/
New Zealand Organic Wine Conference. 

 BioGro – http://www.biogro.co.nz/
NZ Organic Certification Agency

Asure Quality – http://www.organiccertification.co.nz/
NZ Organic Certification Agency

Demeter – http://www.biodynamic.org.nz/demeter.html
NZ Organic / Biodynamic Certification Agency

Organic Farm NZ – http://www.organicfarm.org.nz/
Not for profit NZ Certification Agency (Peer review based)

Organic Explorer – http://organicexplorer.com
An Organic guide to New Zealand