Wikipedia
Cardsave
CardSave is a UK-based payment processing company, the organisation was rebranded to WorldPay in February 2014 after being acquired by WorldPay in December 2010. It provides an online payment gateway and point of sale credit card processing for small to medium businesses.
WorldPay (formerly Cardsave) provides electronic point of sale terminals to merchants, plus a backup manual card processing machines, known as the "zip-zap" machine. The latter is available in case the former becomes faulty.
The companies head office is in Grimsby, England, with offices in London and Nottingham. However, since the merge with WorldPay they now have offices in Gateshead, Cambridge and Manchester as well.