A longlist of hopefuls is forming for the forthcoming sale of the Paymark eftpos business in New Zealand, with indicative bids due at the end of this month. The vendors aim to pick a buyer by May.Early last month the shareholders of Paymark Limited - New Zealand's (and Australia's) four major banks - said they had "commenced a strategic review of their shareholdings after receiving interest in the shares."The list of rumoured bidders includes US payments giant FIS, Verifone (the owner of EFTPOS New Zealand), New Zealand's domestic champion SmartPay and Australia Post, the owner of payments gateway SecurePay.An array of private equity interests will also be assessing the prospects of a business that, even more so than Australia's corresponding Eftpos network, is a slow mover in responding to the twin shifts in electronic payments to contactless, and in-person payments to online purchases (both segments where globally-branded credit and debit card schemes have captured demand).Australia's Eftpos Payments may also be in the mix, while tyre kickers include mutual ADI-linked entities Cuscal and Indue.An eight page information flyer on Paymark, circulated by Cameron Partners for the vendors, put annual revenue at around NZ$52.4 million, EBITDA at NZ$20.5 million and EBIT at NZ$17.1 million. Conjecture on a probable sale price of Paymark is in the order of NZ$200 million.Paymark currently processes more than 1.1 billion transactions annually on behalf of around 50 card issuers and merchant acquirers, Cameron Partners said. More than 70,000 merchants and 140,000 terminals are connected to Paymark's infrastructure.The network processes around one billion transactions (worth more than NZ$48 billion) on behalf of more than 50 card issuers and acquirers every year, Paymark said at its website. It caters to more than 75,000 merchants operating 110,000 point of sale terminals.