Jan Goyvaerts runs Just Great Software, where he designs and develops some of the most popular regular expression software. His products include RegexBuddy, the world's only regular expression editor that emulates the peculiarities of 15 regular expression flavors, and PowerGREP, the most feature-rich grep tool for Microsoft Windows.

Steven Levithan is a leading JavaScript regular expression expert and runs a popular regular expression centric blog athttp://blog.stevenlevithan.com. Expanding his knowledge of the regular expression flavor and library landscape has been one of his hobbies for the last several years.