People switching insurers helped price comparison web site Moneysupermarket.com (LON:MONY) to boost first-half revenue despite a slowdown.
Moneysupermarket said its insurance business continued to increase and it had noted a marginal increase in car insurance premiums.
The news may indicate a turnaround in the motor assurance market, where premiums have been falling as competition bites.
Group revenue in the six months to June 30 rose 18% to £143.9mln.
Moneysupermarket, led by chief executive Peter Plumb, said it achieved continued growth across all its businesses in the first half.
But it added: "As expected, growth in the second quarter moderated."
The group said its credit card and bank account switching business expanded thanks to a highly competitive credit card market.
There was also some competition in the current account market as providers offered "attractive" switching incentives.
It said its energy business benefited from growing adoption of energy collective switches - which involve a large group of customers all switching provider together - although a broker said the phenomenon was lower than before.
The company's Moneysavingexpert.com business continued to do well, helped by a more mobile and responsive website.
Shares rose 2.3p to 292.4p in mid-morning trading.
Broker Investec said: "The first half pre-close shows good sales momentum, with Q2 growth slower as we expected versus tougher comps and lower collective energy switching. We remain at 'buy'."