Future Mobility Solutions - the company behind Sealegs amphibious craft - said its loss for the March 31 year more than doubled to $6.3 million due to "challenging" conditions in the military and commercial markets.
Revenue came to $52m, an increase of $22m over the prior corresponding period, the company said in a statement to the NZX.
Earnings before interest, tax depreciation and amortisation fell to $84,000 from $287,000 in the previous corresponding period.
The company said it continued its "evolution" to a business primarily focused on the military and commercial market globally.
"Whilst the directors continue to believe this will produce appropriate shareholder returns in the medium to long term, in the short term this has proven challenging," it said.