And the winners are...
Thanks to the boom in energy and commodities, this yearís list is a blast from the past. Five of the top ten fast-growers are actually reinvented industrial outfits that are over 100 years old. And of course there are also plenty of flashier tech firms too. more
  1. Arena Resources
  2. T-3 Energy Services
  3. Allis-Chalmers Energy
  4. Bucyrus International
  5. DXP Enterprises
  1. National Oilwell Varco
  2. Sigma Designs
  3. Atwood Oceanics
  4. Intuitive Surgical
  5. Freeport-McMoRan

6 stocks set to soar We think these picks from the 100 Fastest-Growing list are good bets to rise steadily in a tough market. more
Here comes $500 oil If Matt Simmons is right, the recent drop in crude prices is an illusion - and oil could be headed for the stratosphere. He's just hoping we can prevent civilization from imploding. more
Most profit growth Chipmaker Sigma Designs leads the pack, posting a whopping 294% 3-year annual EPS growth rate. See the rest of the top earners. more

Fast-growers in your state
Texas is home to the most companies on this year's list. more
• Texas
• California
• New York
16 giants
These Fortune 500 companies are big and growing quickly. more
Best stock returns
Arena Resources posted a spectacular 107% 3-year rate of return. What other fast-growers have been great investments? more
FSB 100
Meet America's fastest-growing small public companies, from Fortune Small Business. More

Allis-Chalmers Energy 124%
Arena Resources 117%
Nutrisystem 110%
Sigma Designs 294%
Sepracor 228%
Hornbeck Offshore Services 214%
Arena Resources 107%
T-3 Energy Services 101%
Steel Dynamics 84%
To qualify, a company must be incorporated in the U.S.; have a minimum market capitalization of $250 million on June 30, 2008; have a stock price of at least $5... More