Hello!

I am looking for information on credit card processing companies
for important retailers. For example, who processes the credit cards
for Walmart, Target, Kohls, Best Buy, Amazon.com etc. Is it typically
done by a single company (c.c. processor) or by multiple ones?

I know that First Data Corp, Total Systems, MoneyGram Payment Systems
etc. are leading players and have also taken a look at the first page
of research available at:
http://www.firstresearch.com/Industry-Research/Credit-Card-Processing.html

I am interested in some information on the break-up of the industry
(e.g. information such as a particular credit card processor having
good market penetration in a specific industry vertical etc.),
revenues of the five major credit card processors (from this credit
card processing business only) i.e. if they have revenues from other
businesses, exclude those revenues from the answer - wherever possible
and some links to their webpages OR contact information.

If you have any questions, please feel free to ask. Thanks in advance.

Best Regards,
TVR-ga