Spirit DSP is a bootstrap company now employing 140 and with an established global brand.

Read this news release at Real Time Community about the company's latest accomplishments:

Fall VON Show, Boston, MA- October 29, 2007 - SPIRIT DSP, the world's leading provider of embedded voice and video software products, announced today that Reigncom, one of the largest manufacturers of portable CD and MP3 players and the parent company of mp3 player manufacturer iRiver, has licensed TeamSpirit® 3.0 Voice&Video Engine Mobile to guarantee the brilliant voice and video performance in the new iRiver Unit2 portable media player...

... "We are pleased to contribute the development and further market success of the fabulous, innovative design of SPIRIT's world leading Voice and Video Engine," said Alex Kravchenko, VP Sales of SPIRIT. "iRiver Unit2, being powered by SPIRIT, is another acknowledgement of SPIRIT's world leadership in high-quality voice and video over IP and WiFi communication on mobile platforms."

For more on the company, read this profile.

There is no limit to the size or success to be obtained through bootstrapping. Microsoft, Dell and Greg Gianforte's RightNow Technologies are just examples.

For a better overview, see this article from Entrepreneur.com.