Galvanina, a family-owned Italian drinks brand, has called in Stir PR for consumer PR in the UK.
The agency will handle PR around its launch into the UK market and run an ongoing consumer press office to raise the brand's profile.
The organic sparkling fruit drink will be stocked in Waitrose from mid-April.
Andrea Pianini, the great-grandson of the founder of Galvanina, said: "The team at Stir has a wealth of experience promoting food and drink brands to consumers, so I have every confidence it will deliver strong results for the launch of Galvanina in the UK. Its understanding of our brand really stood out."