But he said it was the Japanese firm's first investment in the Southern Hemisphere and the capital raised would allow Electronic Navigation to increase its R&D team and expand sales of its WASSP sonar systems in export markets, which include Europe, North America, China and Australia.
"We've already doubled the size of our R&D since 2011 and we're hoping that this capital investment will help speed up that [process]," Hodson said, adding that the company invested 50 per cent of its export turnover in product development.
He said Furuno's investment would also accelerate a number of joint R&D projects the two companies were working on.
There was potential for the Japanese firm to increase its stake in Electronic Navigation, which employs 50 staff, but Hodson said his family wanted to retain a majority shareholding.
The Japanese company's New Zealand investment comes hard on the heels of the sale of Navman founder Sir Peter Maire's Fusion Electronics to the United States navigation device maker Garmin.