"Topshop is very much known for being fast with the trends and really picking up styles from the runway and translating them into the Topshop Topman way, so for us it's a really good addition to our trend assortment," Osthus said.
"We know that Topshop and Topman is a very wanted brand in Australia and New Zealand and customers are searching for it."
The deal is Topshop's first online presence in New Zealand with physical distribution from Australia.
"Topshop and Topman are two brands we know Kiwis love - we want to keep bringing our customers the biggest and best brands in the world, which is why we're thrilled to be welcoming Topshop and Topman to The Iconic family," said Patrick Schmidt, chief executive of The Iconic.
In September, Top Retail, the company that operates the licence for the British brand in New Zealand, said its Auckland and Wellington stores had been placed in receivership.
Topshop stores in Auckland and Wellington ceased trading last month.