More than 120 companies in Australia have applied to Naval Group to be high-level partners in the development and construction of Australia's new Attack class submarines.
Naval Group last month called for expressions of interest from local companies with the release of a local manufacturing package worth almost $900 million.
The company is looking for local manufacturers to produce 20 separate items of equipment for the 12 subs to be built in Adelaide, including steering gear, weapon handling systems and the main shaft line.
Naval Group Australia Chief Executive John Davis said there had been an impressive response.
"Our local manufacturing package sent a clear message to Australian industry that we mean business," Mr Davis said.
"Australian manufacturers have shown in this response that they stand ready to step up and play their part in building submarines that will be critical for Australia's defence.
"The potential benefits for the nation from this program are immense and will last a generation."
A further 2000 Australian businesses have also registered to become part of the wider supply chain that will sustain the 50-year submarine construction program.
Naval Group Australia already employs almost 300 people in South Australia and expects that to grow to about 1700 direct jobs by 2028.
Australian Associated Press