The census site says there are almost 6 million small companies with employees http://www.census.gov/epcd/www/smallbus.html http://www.census.gov/epcd/www/small

The census site says there are almost 6 million small companies with employees http://www.census.gov/epcd/www/smallbus.html http://www.census.gov/epcd/www/smallbus.html and this article says that QuickBooks has 3 million customers http://www.businessweek.com/magazine/content/05_36/b3949090_mz063.htm http://www.businessweek.com/magazine/content/05_36/b3949090_... . They would have a higher penetration if it was better software (it sucks to be a 20+ person company manufacturing with it, and don't even think about multiple warehouses) I think that 90% figure is a old wives tale, much like the nonsense quote that 90% of businesses fail in 5 years - see http://smallbiztrends.com/2008/04/startup-failure-rates.html http://smallbiztrends.com/2008/04/startup-failure-rates.html . Sorry for the over zealous response, but this happens to be a sore subject for me.