Payzone chief executive John Nagle and chief financial officer John Williamson have secured an injunction from the High Court preventing the firm from dismissing them.
The electronic payments company announced to the stock market yesterday that Mr Nagle and Mr Williamson had left the company and that chairman Bob Thian would assume executive responsibilities immediately.
But Mr Nagle and Mr Williamson went before the High Court yesterday evening and were granted three injunctions.
Ms Justice Laffoy said she saw no reason to vary the injunction granted by Mr Justice Birmingham yesterday and adjourned the matter until tomorrow.
The company, which recently won the contract to operate barrier-free tolling on the M50, had sought to remove Mr Nagle from his post by e-mail in "extraordinary circumstances", counsel for the men said in court today.
Earlier, it emerged that Payzone shares had been temporarily suspended on London's AIM market at the request of the company.
Payzone listed on London's junior AIM market in December following the merger of Ireland's Alphyra and British cash machine operator Cardpoint.