Chester-based MoneySuperMarket.com saw a surge in both revenue and profit in 2014.
The price comparison site grew revenues by 10% to £248.1m, while profit after tax stood at £52.8m, up 52% compared to last year.
Money and insurance was up 13% and 8% respectively while TravelSupermarket.com rose 28%, benefiting from a capital investment of £16.1m in technology. MoneySavingExpert.com revenues were up 17%.
Chief executive Peter Plumb said: “Our three well-trusted brands helped more than 40 million users make the most of their money in 2014.
“We invested more than £16m in our websites and systems and will do the same in 2015 to ensure we lead the market as the easiest and best way for families to save money on their household bills. Following 10% revenue growth in 2014, the group has started the year well and is on track to save more families more money than ever before.”