The Wise2 package was principly written by Ewan Birney, who wrote the main genewise and estwise programs. The protein comparison database search program was written by Richard Copley using the underlying Wise2 libraries. Wise2 also uses code from Sean Eddy for reading HMMs and for Extreme value distribution fitting.
However the authorship of Wise2 should be more fairly distributed between the main authors and the wonderful alpha testers I have had over the years. In particular Michele Clamp stands out as my longest running collaborator and tester, and indeed in effect all my successful algorithms have been best used and developed with Michele. Other mentions go to Gos Micklem and Niclas Jareborg and for their work at testing and their patience in my coding over the last couple of years. Other notables are (in no apparent order) - Enoch Huang, Erik Sonnhammer, Doug Rusch, Steve Jones, Ian Korf, Iftach Nachman, George Hartzell and Lars Arvestead. I believe that program writing is a 50-50 partnership between the coders and the testers or developers, and these people have actively helped me make a much better package.