Canterbury- ABB LtdMiddleton
- Action Electric LtdBromley
- Alstom New Zealand LimitedIslington
- Aotea Electric Canterbury LimitedRiccarton
- Bartlett Electrical Co LtdPapanui
- Ben Logic Electrical Solutions LtdTimaru
- Graham Taylor Electrician LtdTimaru
- Habershon Electrical LtdWaimate
- J & G Electrical ServicesHoon Hay
- Millennium Electrical LtdHornby
- ProlecRiccarton
- Ryde Appliance Testing Services
- Stanley Electrical ECANZOamaru
- Trevor Martin ElectricalOamaru
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