Simon James MacKenzie

United Networks Ltd. engages in the provision of electricity and natural gas distribution services. The company is headquartered in Newmarket, New Zealand.

Part of NZ Windfarms Ltd., TRH Services Ltd. operates and maintains windfarms. The private company is based in Christchurch, New Zealand. TRH Services was acquired by NZ Windfarms Ltd. from Windflow Technology Ltd. on October 20, 2011.

Tree Scape Ltd. provides landscape services. The private company is based in Auckland, New Zealand.

Vector Gas Ltd. engages in the distribution and transmission of gas products. It supplies gas to residential, business, developers, and shippers through retailers. The company is headquartered in Newmarket, New Zealand.

Energy Efficient Solutions NZ Ltd. provides energy efficient heating solutions. It offers heat pumps and ducted systems. The firm exports products throughout the world. The company is headquartered in Auckland, New Zealand.

Part of Entrust (New Zealand), PowerSmart NZ Ltd. is a company that delivers innovative and sustainable energy solutions for the commercial and public sectors. The company is based in Mt. PowerSmart NZ has a culture that prioritises health and safety on every job, no matter how big or small or where in the world they are. PowerSmart NZ was acquired by Vector Ltd. on March 31, 2017. Maunganui, NZ. The New Zealander company offers operation and maintenance services for commercial-scale solar photovoltaic (PV) and battery energy storage system (BESS) renewable energy assets. The company specialises in utility scale solar PV feasibility studies, engineering design and PV yield assessments so clients are able to make informed decisions around their renewable energy investments.

E-Co Products Group Ltd. sells and installs home ventilation system. The company is headquartered in Auckland, New Zealand.

Cristal Air International Ltd. sells and installs home ventilation system. It offers heatpumps, tablet heaters, whole home water filtration, windows, air filtration, air conditioning and upgrade products. The company was founded in 2003 and is headquartered in Auckland, New Zealand.

Part of Entrust (New Zealand), Arc Innovations Ltd. is a New Zealander company that provides information and smart metering solutions. The private company is based in Christchurch, New Zealand. Arc Innovations was acquired by Vector Ltd. from Meridian Energy Ltd. on December 01, 2014.

NGC Holdings Limited operates as an energy infrastructure and service company with interests in natural gas and LPG processing, transportation, sales, and energy metering in New Zealand. The company operates in three divisions: Infrastructure, Energy Trading, and Others. Infrastructure division engages in the ownership and management of gas transmission lines, distribution networks, LPG infrastructure, and electricity and gas meters. Energy trading division engages in natural gas acquisition and processing, LPG and gas marketing, and residual electricity trading businesses. Others division includes corporate activities and investments. The company was founded in 1967 and is headquartered in Wellington, New Zealand

Founded in 2003, Vector Metering Data Services Ltd. is a subsidiary of Entrust (New Zealand) that provides meter data services. The private company is based in Newmarket, New Zealand.