Tesco is launching a spin-off service from its Clubcard that it claims will dramatically improve the information suppliers can gain about customers' shopping habits.

The scheme is aimed at smaller suppliers who have been unable to afford to pay for insight from the loyalty card, which has gained a foothold in 15 million UK homes.

Although it will charge a minimum of £10,000 a year for access, Tesco says the new service, run by its data monitoring company Dunnhumby, will potentially allow hundreds more suppliers to gather a clearer picture of their customers. 

The Dunnhumby Shopper KPI Report, as it has been tagged, will provide information on how shopper behaviour drives sales performance, information on the type of customer that buys certain products and details such as how and what customers repeat purchase.

"It will help us work more closely with many more suppliers and improve our understanding of their products and brands, and ultimately lead to a better offer for our customers," said John Scouler, commercial director for packaged foods, BWS and health and household at Tesco.