How many private investigators (PIs) are there in the United States? I
am looking for the number of both PI agencies and self-employed
private investigators. I am trying to estimate the market for certain
tools PI's use, and therefore the number of agencies and self-employed
PIs is important.

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Clarification of Question by youngturk-ga on 07 Nov 2002 15:39 PST

jackburton - ga 

Thank you for the link. It was very useful. If you like, you can post
your comment as an answer.

"According to the Bureau of Labor Statistics, there are 55,000 private
investigators in the U.S. as of 1996. That figure is expected to
increase by 36% or more by the year 2005."
http://www.att.com/rnb/members/ifax/rnb11831.html