The conference, which also signalled the official launch of the New Zealand Helicopter Association, recognised companies which provided superior safety performance with a gold award.
The gold award recognises 15 years of continuous service, without accident to self, passengers or crew, and is awarded to companies and individual pilots.
Association chief executive Irene King said few helicopter companies reached that level.
"Over The Top Helicopters has demonstrated an outstanding level of safety performance, which the commercial aviation industry is recognising through the award of a gold standard.
"Gold is the highest level of achievement. However, we understand that Over The Top Helicopters' continuous safety performance record is 20 years plus. We simply don't yet have a category of recognition for that level of performance," she said.
Over The Top chief executive Louisa "Choppy" Patterson, who has operated the company for 23 years without accident, said she was delighted to pick up the awards and her commitment to safety and excellence had been priorities.
Ms Patterson, the chief pilot, also won an ind-ividual gold award, while senior pilots Stephen Beck and Stuart Robertson won silver awards.
