Search engine company Google has been named the fastest growing company in North America, according to a new ranking by professional services firm Deloitte & Touche.

The newly public Google bumped last year's top company, life sciences firm TheraSense, to Number 2 on the list. Google's revenue jumped from $220,000 (£120,300) in 1999 to $961.8m (£525m) last year, according to the survey.

That adds up to a whopping 437,115 percent increase, Deloitte says.

Other highly ranked network companies were STSN, a Salt Lake City-based provider of high-speed internet access to the hospitality industry that finished at Number 3, and WebMethods, a business integration software maker that placed 59th.

Among the biggest network companies on the list was Level 3 Communications, which posted 2003 revenue of $4bn (£2.2bn). The company ranked Number 294.