A: San Francisco, California, United States
In June 1994 San Francisco entrepreneur Ariel Poler founded Internet Profiles Corporation (I/PRO), the first commercial web analytics vendor, producer of the first log analyzer.
"The company emerged as the early market leader in the developing field of web usage measurement, partly because of its partnership with the venerable Neilsen Media Research . . . and Neilsen Media Services in . . . 1995." (Peters, Computerized Monitoring and Online Privacy [1999] 343).
Internet Profiles Corporation was acquired by CMGI in 1999.