src: http://www.bizjournals.com/sanjose/print-edition/2013/04/05/women-of-influence-debra-guerin.html?page=all Staff Silicon Valley Business Journal Debra Guerin Beresini CEO/Invencor Inc. and managing director/International Venture Fund (IVF) Guerin Beresini serves as fund manager for several funds, both debt and equity, and provides strategic consulting services to emerging, high-growth companies at Invencor Inc., an investment firm focused on early stage businesses that she co-founded in 1997.