The campaign, created by Miles Calcraft Briginshaw Duffy, broke in January and has featured a number of executions promoting the money and insurance parts of the price comparison website.
The brand used radio advertising for the first time as part of the campaign.
Moneysupermarket.com said that this had increased gross margins because direct-to-site revenues were up. UK internet revenues rose by 6% on the same period last year with the site receiving 3% more visitors.
The company has invested an extra £2.3m in media and creative spend over the past six months. Media spend will be maintained in the second half, but the company said spend on creative would be reduced as the campaign was now well established.
The company will focus on developing its travel offer in the second half of the year.
Peter Plumb, CEO of Moneysupermarket.com, said: "Moneysupermarket.com has delivered a strong performance in the first half as we started to reap the benefits of the targeted investments made in both our site and our marketing.
"Our brand is stronger and we are delivering on our aim of helping every household make the most of their money."
David Osborne is marketing director of Moneysupermarket.com.
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