Two months on since this year's show, a third of exhibition space has sold out, with Unilever, Imperial Tobacco and Bravilor already signed up.
CRS 2003 will feature 150 stands from British and international independent suppliers and retailers as well as talks and demonstrations from key industry figures.
Organised by William Reed Publishing, publisher of The Grocer, the event is being held in partnership with the Association of Convenience Stores and The Grocer's sister title Convenience Store.
ACS chief executive David Rae said: "We recognise the importance of supporting the premier show for the convenience sector.
"Our presence at the show also gives us the opportunity to meet and gain new members."
Andrew Reed, William Reed exhibitions director, said: "We are extremely pleased with the outcome of last year's event and the direction in which the show has grown since our relaunch in 2001.
"We have developed a formula that will continue to meet retailer needs and offer practical solutions for helping businesses stay competitive."
CRS 2003 is being held alongside International Forecourt & Fuel Equipment show, Europe's leading forecourt show.