The UK Portal for the American Express Credit Card.
http://www.americanexpress.co.uk

Whatever your interests and needs, your Barclaycard can make things easier, every step of the way. Explore the range of Barclaycard Products and Services. Explore the range of offers including Travel and Wine.
http://www.barclaycard.co.uk

Complete expense management solutions. A procurement card for business travellers. Diners Club provides an exclusive range of benefits and privileges to its cardholders. It will give you complete peace of mind, flexibility and support around the world.
http://www.dinersclub.co.uk

Visa International is a membership association owned by 21,000 financial institutions worldwide. We provide products, systems and services for banks and other organisations that are members of Visa. Find out about Visa and our members in the EU - and how we are leading the world with new payment technologies, such as chip cards.
http://www.visaeu.com/