Mason will be responsible for recruiting a senior management team and for a redesign of the website. His particular focus will be insurance and financial services.
Mason developed competitor site Moneysupermarket.com for eight years before setting up a consultancy business and acquiring a stake in Moneyextra.com.
He will be joined by Jennifer Rose as communications director. Rose previously held the position of PR manager at another rival site, Confused.com.
Richard Mason, managing director of Moneyextra.com, says: “This is a great opportunity for me to apply the knowledge I have gained to take Moneyextra.com on the same journey to the top of the price comparison sector.
“Following its recent change of ownership Moneyextra.com now has a dynamic and ambitious team who share my belief that we can not only compete with, but surpass our rivals in this sector.”
Mason plans to set up an comparison industry consortium to allow smaller players to compete with larger brands.
John Elder, director at Moneyextra.com, says: “We’re looking forward to combining Mason’s industry knowledge and expertise with our own ambition and drive to make Moneyextra.com a real asset for UK consumers and businesses.”