The Harrogate company, whose brands include Harrogate Spa Water and Thirsty Planet, is to supply Thirsty Planet water to all 157 of Easyjet's aircraft which operate to 100 destinations around Europe and North Africa, carrying more than 40 million passengers a year.

Paul Martin, managing director of Waterbrands, said: "We're proud that Thirsty Planet has been selected by easyJet.

"Securing this contract gives us a fantastic opportunity to make more people aware of the one billion people in the world who still do not have access to clean water, and the amazing work Pump Aid is doing to help solve the problem."

Thirsty Planet was launched in March, 2007. It has listings in all the major UK supermarkets and with leading charter airlines, and sales account for 65 per cent of the charity water sector.

Every sale of Thirsty Planet guarantees a donation to the charity Pump Aid which works with impoverished rural communities in Zimbabwe and Malawi to access clean and disease-free water supplies by digging wells and installing cost-effective and sustainable pumps, called Elephant pumps.

Lee Johnson, easyJet in-flight retail manager, said: "Thirsty Planet is a natural fit with EasyJet's principles of running our business in a sustainable and responsible manner.

"When we heard about the partnership Thirsty Planet had developed with Pump Aid, we were impressed with its simplicity and transparency.

"The idea that you can transform a person's life simply by buying a bottle of water is very powerful, and I expect our passengers to respond very positively. "