Just some stupid facts about the US.
In 2008 of the 6.000.000 companies with staff, more than 50% had less than 5 staff members. Only 981 had more than 10.000.
Having worked in the Netherlands in real large contactcenter, I’m aware that the data are comparable
The crazy thing is that education often still focuses on the big, big ones. Management education and books thrive on the names dropping of companies, successful at the moment of publishing.
As an individual your ambition is to belong to the happy few.
I dare to say that often you are probably better in any startup of SMB.