UPDATE: Worldpay has confirmed it has been approached about a potential takeover, sending shares surging as much as 20 per cent.
Vantiv, a US-based payments processor listed on the New York Stock Exchange, and JP Morgan have made a preliminary approach.
"There can be no certainty either that an offer will be made nor as to the terms of any offer, if made. A further announcement will be made if appropriate," Worldpay said.
Shares in WorldPay, the firm behind many a shop's till payments technology, have surged as much as 10 per cent in early trading on the back of rumours it's a takeover target.
The payments firm was the biggest riser on the FTSE 100 following a report suggesting it was ripe for buying
Nets confirmed over the weekend it had been approached about a takeover after shares surged nearly 14 per cent. The payments firm went public last year on the Danish stock exchange.
“It is very early stage and there can be no certainty as to the potential outcome,” it said in an update to investors.
WorldPay has not yet responded to a request for comment.