With a database of 25m keywords in 20 languages, Traffic Broker’s software helps clients such as eBay and Skype bid for top positions on search engines, primarily Google. This online marketing company receives a fee for each sale from a client’s site, and is branching out with its own mobile-phone websites. Founder Neil Hutchinson used a £2,000 overdraft to get started, boosted by a £125,000 loan from his previous employer, which has now been paid off. With a growing number of customers, sales at the London firm soared 197% a year from an annualised £1.1m in 2005 to £10.1m in 2007.