Company name: Cambridge Silicon Radio
Where it's based: Cambridge, U.K.
When it was founded: 1998
What year it was a Fierce 15: 2003
Why it was a Fierce 15: Cambridge Silicon Radio was selected because it had designed an integrated, single-chip Bluetooth system that made it perfectly situated to exploit the growing popularity of Bluetooth. Click here for more.
What has happened since it was awarded the Fierce 15: CSR continues to innovate and grow its chip portfolio to provide multifunctional mobile connectivity and location platforms. In 2004 the company held a public offering on the U.K. stock exchange, raising a total of around $130.4 million. In addition, it has made a number of strategic acquisitions including Clarity in 2005 and NordNav and Cambridge Positioning Systems in 2007. These acquisitions have helped enhance CSR's embedded wireless expertise. Most recently CSR merged with SiRF Technology Holdings Inc, bringing together the two companies' IP portfolio and customer base. Today CSR is ranked No. 1 in every Bluetooth market segment, with a unit market share of more than 65 percent. As of the second quarter, CRS silicon is in 60 percent of the top-selling U.S. smartphones.