Every wonder how many Certified Scrum people there are? The Scrum Alliance web site has the answer. Scrum Alliance lists the names of all the registered certificate holders at http://www.scrumalliance.org/training. If I count correctly, these are the numbers, as of January 13, 2010:
There is some double counting, but it’s not very significant. For example, most CSTs are also CSPs and CSMs, and they are counted in each category.
Here is a chart showing the same data: