The Charities Buying Group is preparing to relaunch its website in January to allow members to purchase online.
At present, members can place orders only by contacting Charities Buying Group staff, who then put them in touch with relevant companies.
The group, which is run by a firm owned by care charity Leonard Cheshire, was launched in 2003 to offer bulk buying deals to charities in areas such as printing, telecoms, food and vehicles. The website was designed to cope with 100 users, but membership soared to 1,000 organisations during 2005.
In addition to the updated and improved website, the group is also planning a marketing drive. According to chief executive Michael Hodgetts, membership could swell to 20,000 members in the next two years.
Founder members of the group include Sense and the Royal British Legion.