three years ago 65-70 percent of Spiceworks users were from companies that had fewer than 100 employees. In the last 24 months, however, that has completely turned on its head, and now 75 percent of usage comes from companies with 100 employees or more. Specifically the two fastest growing segments are companies with 500-1,000 employees and companies with 1,000 employees and above. As of last month there were 13,000 installations with more than 1,000 devices, implying that 60-65 percent of enterprises in the world use Spiceworks for something. 

via Spiceworks CEO sets sights on the enterprise – Interview – Techworld.com.