Website or File Parser for Mac OSX

I need a program developed for mac only. This program is a parser that can go on websites and extract all contact info I need this to work for [login to view URL] for example and many other websites. I need (if listed) Name: Business Name: Street Address: State: Zip Phone: Fax email: email: email: email: Web: I also want to know if it is possible to make this software work when using the programm site sucker and actually parsing the downloaded site.