iFAX, a commercial company that is built on open source fax server software HylaFAX, was recently included in Inc. Magazine's 2007 list of the top 500 fastest growing companies in the United States. iFAX founder Darren Nickerson says one of the keys to iFAX's success has been its commitment to the open source community behind HylaFAX. "Our success is tied to the openness of the software."