Gattung believed the powerful combination of the three main women in charge, including Nadia Lim as well as Robinson, had helped make the company a success.
She said she would focus on continuing the company's growth.
"Growing the brand in New Zealand is a focus point," she said. "We want to expand a bit further and we have other product development in the wings that we want to add to the options, as well as continuing our advertising and campaigns. We've had strong growth so far and we want to continue that growth."
The Australian branch will be based in Sydney, and focus initially on the market in New South Wales, with a view to expand further into Australia in the future, says Robinson.
"We have had sustained growth in New Zealand and we believe we can replicate that success across the Tasman," she said.
"Australia is a significant market and modern communications mean in management terms we can all work as part of a team."
Grub's up
*Firm uses fresh, free-range and, where possible, locally sourced products.
*More than 6000 customers in Auckland, Hamilton and Wellington.
*By its one-year anniversary in March had delivered one million dinner kits and more than 60,000 food bags.