Solar Kiwi
- Solar water heater systems for New Zealand conditions. Information about evacuated (vacuum) tube solar collectors.
- http://www.solarkiwi.co.nz/

Powerco
- New Zealand's second largest electricity and gas network utility connected to networks in Taranaki, Wanganui, Rangitikei, Manawatu, Wairarapa and Wellington. Company profile plus information on investing, publications, policy, community, news and contact
- http://www.powerco.co.nz/

The New Zealand Refining Company
- The only refinery in New Zealand. Site contains pictures but no product information.
- http://www.nzrc.co.nz/

Petroleum Exploration and Production Association
- A trade association, which promotes the interests of petroleum producers and explorers in New Zealand.
- http://www.pepanz.org/

Natural Gas Corporation of New Zealand
- Involved in the purchase, treatment, transportation and sale of natural gas and associated products and services in New Zealand.
- http://www.ngc.co.nz/

Caltex
- Details of product and service offerings. Includes information on service stations, snack shop and fuel types.
- http://www.caltex.co.nz/

Empower
- Residential and business electricity supplier for a number of regions. Company information and contact details.
- http://www.empower.co.nz/

Nova Gas Ltd
- A privately owned energy company specialising in the supply of natural gas to industrial and commercial users.
- http://www.novagas.co.nz/

Greymouth Petroleum
- A New Zealand owned and operated oil and gas production and exploration company. Announcements, press releases, current activities, map and contacts.
- http://www.greymouthpetroleum.co.nz/

Fuelstar New Zealand Limited
- Fuel combustion catalysts. Contacts, test reports, and information on performance, fuel savings, unleaded petrol and toxic emissions.
- http://www.fuelstar.com/

Mighty River Power
- Electricity generator, wholesaler and retailer that owns Mercury Energy and First Electric. Does not sell power to consumers directly.
- http://www.mightyriverpower.co.nz/

Mercury Energy
- Electricity company supplying customers in Auckland, Manukau and parts of Papakura. Residential and business customer service and pricing.
- http://www.mercury.co.nz

Meridian Energy
- Renewable hydro and wind electricity provider in New Zealand. Residential and business customer service, pricing, and conversion information.
- http://www.meridianenergy.co.nz

Accord Heating and Air Conditioning
- Heating company that supply the Keston boiler system, providing energy efficient solutions to heating and air conditioning projects. Services and contact details.
- http://www.iheat.co.nz

Solar Master Auckland Ltd
- Designs and manufactures hot water products for the domestic and commercial markets. Products include solar systems and stainless steel hot water boilers.
- http://www.solarmax.co.nz/

Transpower New Zealand
- Owns and maintains the national electricity grid for New Zealand.
- http://www.transpower.co.nz/

UnitedNetworks
- New Zealand's largest electricity lines company; owns power lines in the streets in three regions across the North Island and delivers power on behalf of energy retailers.
- http://www.unitednetworks.co.nz/

Contact Energy
- Supplies electricity and natural gas and is responsible for some of New Zealand's electric power generation. Site provides company information and online billing.
- http://www.mycontact.co.nz/

Electra
- Supplies electricity to the central North Island from Paekakariki in the Kapiti Coast through to Tokomaru in the Horowhenua region. Prices, details of interruptions, services, company history and contact details.
- http://www.electra.co.nz/

Genesis Energy
- Residential and business electricity supplier for many regions in the North Island. Pricing, company information and contact details.
- http://www.genesisenergy.co.nz/

Vector Energy New Zealand
- Suppliers of Auckland's electricity network, distributing power to Auckland, Manukau and Papakura.
- http://www.vector-network.co.nz

WEL Networks
- Manages, maintains and develops the physical network that delivers electricity in the Waikato area.
- http://www.wel.co.nz/

BP New Zealand
- Marketer of petroleum products sold through service stations. Part of BP plc. Service station details and company info.
- http://www.bp.co.nz