The French food company is believed to be preparing the launch of its Danio range, which is currently available in other European countries, to the UK market.
The brand is seeking a PR agency for a brief to handle the launch and ongoing promotion of the brand.
Marketing manager for innovation Julia Lowbridge said: 'We won't comment on speculation about our agency partnerships.'
Danone is a market leader in fresh dairy products and bottled water. Its brands include Activia and Actimel.