100 Fastest-Growing rank: 11 (Previous rank: N.A.)
CEO: Jason Rhode
Address: 2901 Via Fortuna, Austin, Texas
This semiconductor company, which supplies integrated circuit products to a variety of consumer and commercial applications, saw huge three-year annualized earnings-per-share gains of 340%.
During 2010, it focused on its Digital Energy Control initiative with an LED lighting controller that it says is more effective than the competition, not to mention compatible with more LED light bulbs. But the largest driver of revenue over the last few years remains its portable audio business. Its products are used in everything from smartphones and tablets to Blu-ray players, bringing in $265 million during fiscal 2011, or nearly 70% of the company's annual revenue.