VivoTech, provider of infrastructure for wireless credit-card transactions, just added $8.6 million to a now $40 million third round of funding open since 2007. Its technology lets people make payments via radio frequency enabled credit and debit cards and some mobile phones. The Santa Clara, Calif.-based company has already sold 470,000 of its payment terminals in 35 countries. It is also developing systems for use with taxi cabs, vending machines and ATMs.

Previously, VivoTech raised $52 million. Its backers include Alloy Ventures, Draper Fisher Jurvetson, DFJ Gotham, First Data, Miven Ventures, NCR, Nokia Growth Partners, Motorola Ventures and Citigroup. All of its existing investors participated in the recent round extension.