The company is still confident of significant growth but as a figure of 40% rather than 80% fot the mobile market.

As a result of the downturn the company’s shares dropped 14p to 946p, having reached a thirty pounds high last year.

Logica’s controls 60% of the world’s text messages 1,000 messages sent every second, every day, and any decline in revenues from mobile phones would mean slowing returns for shareholders.