Seeing as the average life expectancy of a Fortune 500 company is 40-50 years[1], it's not unreasonable to consider a 6-year-old company to still be in the "starting up" phase of its existance.
Looking at it from this angle, one has to observe that we not only do have a terribly high infant mortality rate; many seem to be spawned with the sole purpose of becoming child sacrifice. (Moloch the Great Acquihirer).
[1] http://www.businessweek.com/chapter/degeus.htm