Four Northpower employees have lost their jobs after the lines' company closed its garage and outsourced vehicle maintenance work in a bid to save costs.
Due to re-organisation, a further eight mostly frontline and office staff based in Northpower's Whangarei office could also lose their jobs but the company said most would likely be retained.
Spokesman Steve MacMillan said three Northpower mechanics were affected by the garage closure in Whangarei and one in Dargaville at the end of March.
"As always Northpower worked with them to find new employment and to the best of our knowledge all have pursued new opportunities," he said.
Mr MacMillan said Northpower changed its vehicle management and servicing in late March.