Charlie's, the largest independent juice business in New Zealand, may float on the stock market within the next year, according to press reports.

The company has become the third biggest juice supplier in the country after just four years in business. It sells around four million litres of juice a year, mainly through supply deals with all the large supermarket chains.

"We are selling millions of litres per annum and taking on the likes of Coca-Cola," company chief Marc Ellis said. "We want Kiwis to buy into that story and support a NZ-owned business."