Kathryn Foster and Matthew Quinn have joined the Class board as non-executive directors, while Kevin Bungard has been appointed as an executive director.
Ms Foster, who formerly resided in the US, has over 20 years' experience and has held global roles with Microsoft.
"Ms Foster’s insights into business vision, strategy and execution for billion-dollar businesses will make her a valuable addition to the Class board," said a statement by Class.
Mr Quinn was the managing director of property group Stockland for 12 years. He is currently a non-executive director of CSR and UrbanGrowth NSW, and the chairman of Carbonxt Group and mPort.
"His extensive experience, including his direct involvement in creating a market-leading business, will greatly benefit Class," said Class.
Mr Bungard joined Class in 2009 as chief operating officer and was appointed the chief executive officer in April 2014.
Class also announced that non-executive directors, Fred Marishel and Kevin Wyld, have retired from the company's board.